Polythiophene: Synthesis in aqueous medium and controllable morphology
|
|
- Bonnie Hunt
- 6 years ago
- Views:
Transcription
1 Chinese Science Bulletin 2009 SCIENCE IN CHINA PRESS Springer Polythiophene: Synthesis in aqueous medium and controllable morphology LIU RuoChen & LIU ZhengPing Institute of Polymer Chemistry and Physics of College of Chemistry, BNU Key Laboratory of Environmentally Friendly and Functional Polymer Materials, Beijing Normal University, Beijing , China Various morphologies of polythiophene have been designed and successfully prepared by chemical oxidative polymerization in the presence of phase transfer catalyst (PTC) cetyltrimethylammonium bromide (CTAB) in aqueous medium. The morphologies of polythiophene could be controlled in ribbons, fibers and spherical particles by changing the concentrations of reductant, oxidant and phase transfer catalyst. The structure, thermal stability and the conductivity have been characterized, and a mechanism for the transformation of the morphology of polythiophene has been proposed. polythiophene, preparation, aqueous medium, morphology, cetyltrimethylammonium bromide (CTAB) Since 1980 [1], polythiophene has been widely used in environmentally and thermally stable conjugated polymer materials, such as chemical and optical sensors, light-emitting diodes and displays, photovoltaic devices, molecular devices, DNA detection, polymer electronic interconnects, solar cells and transistors [2 6]. Three approaches to polymerization of thiophene have been reported in the literature: (1) electropolymerization, (2) metal-catalyzed coupling reactions, and (3) chemical oxidative polymerization. Waltman et al. [7] prepared high conductivity polythiophene films by electropolymerization in 1983, but it is rarely used in the preparation of electroluminescent materials. Yamamoto et al. [1] reported the polycondensation of 2,5-dibromothiophene catalyzed by Ni(bipy)Cl 2, and similar results were also observed by Lin and Dudek [8] in their Ni, Pd, Co, and Fe catalytic system. In 1984, Yoshino et al. [9] found unsubstituted thiophene could be polymerized by ferric chloride in chloroform. Recently, Kim and his co-workers [10,11] prepared polythiophene in aqueous dispersion via Fe 3+ -catalyzed oxidative polymerization and tested its photoluminescence properties. Inspired by Kim s research, here we are interested in polymerization of thiophene by chemical oxidation, which is rather difficult to occur due to thiophene s high oxidation potential and poor solubility in water. Unlike polyaniline and polypyrrole [12], there are little literature relating the morphologies of polythiophene with the expectation that such materials will possess the advantages of organic conductors. Gök et al. [13] prepared different morphologies of polythiophene using different surfactants in We report herein our study on this polymerization in aqueous medium in the presence of the phase transfer catalyst (PTC) which could be used as templates to control the morphologies of polythiophene, and a mechanism for the transformation of the morphology will also be described. 1 Experimental 1.1 Reagents All chemicals were purchased from Aldrich Chemical Co. and Beijing Chemical Co. used as received unless otherwise noted. Thiophene was freshly distilled prior to use. Received August 31, 2008; accepted February 3, 2009 doi: /s Corresponding author ( lzp@bnu.edu.cn) Supported by the National Natural Science Foundation of China (Grant No ) and Measuring Fund of Large Apparatus of Beijing Normal University Citation: Liu R C, Liu Z P. Polythiophene: Synthesis in aqueous medium and controllable morphology. Chinese Sci Bull, 2009, 54: , doi: /s
2 1.2 Synthesis of morphology-controlled polythiophene Typically, cetyltrimethylammonium bromide (CTAB, 2.06 g), triethanolamine (TEA, 5.27 g) and thiophene (2.5 ml) were dissolved in deionized water (30 ml) in three-necked flask. The mixture solution was placed under ultrasonic for 30 min. Ammonium persulfate (APS, 8.26 g) was dissolved in 20 ml deionized water. Then the ammonium persulfate solution was added dropwise into the mixed solution mentioned above. The mixture was heated without stirring for 24 h at 70. The resulting precipitate was collected by filtration or centrifugation. It was washed by deionized water and methanol, and then freeze-dried for 24 h. The dark brown powder was polythiophene (1.15 g). 1.3 Characterization Infrared spectra were obtained from KBr pellets on an Avatar 360 Fourier transform spectrometer. HITACHI S-4800 field emission scanning electron microscopy (SEM) samples were prepared by evaporating the aqueous dispersion on aluminum-foil-coated stages, and the morphologies with gold coating were observed at an acceleration voltage of 3.0 kv. The conductivity was measured with typical four-probe method on a BD86 instrument at room temperature. Thermogravimetric analysis was made on a Perkin-Elmer Pyris 1 TGA apparatus at a moderate heating rate (10 /min) in a nitrogen environment. tion, C-C, stretching vibration of in-plane C-H, C-S, and C-H out-of-plane bending vibration absorption at about 1433 cm 1 ; 1216 cm 1 ; 1072 cm 1 and 1043 cm 1, 839 cm 1, and 702 cm 1[16 20], and these absorption is weakened by treatment of thiophene with ammonium persulfate, triethanolamine and cetyltrimethylammonium bromide, supporting the formation of polythiophene. Polymerization of thiophene can be monitored by scanning electron microscopy. The polymerization is fast, and polymer forms sheet structure at the beginning 30 min (Figure 3(a)). One hour later, some holes appear Figure 2 FT-IR spectra of thiophene and polythiophene prepared by chemical oxidative polymerization in aqueous medium. ARTICLES 2 Results and discussion Treatment of thiophene with ammonium persulfate, triethanolamine and cetyltrimethylammonium bromide at 70 for 24 h gives a dark brown precipitate, which can be isolated by filtration. During the course of the reaction, the solution changed from colorless to opaque, and finally to black (Figure 1). The FT-IR spectra (Figure 2) of thiophene monomer and polythiophene show that the characteristic absorption bands of polythiophene are similar to those prepared by traditional method [13 15]. Their IR spectra show the typical characteristic thiophene ring stretching vibra- POLYMER CHEMISTRY Figure 1 (a) Thiophene monomer, (b) the resulting solution after 24 hours polymerization, and (c) dried precipitate. Figure 3 SEM images of polythiophene prepared by 57 mmol of cetyltrimethylammonium bromide, 36 mmol of ammonium persulfate and 35 mmol of triethanolamine in aqueous medium. From (a) to (g), the reaction time is 0.5, 1, 3, 6, 9, 12, 15 h, respectively. Liu R C et al. Chinese Science Bulletin June 2009 vol. 54 no
3 on the sheet (Figure 3(b)). These holes disappear after standing for nine hours, and the sheet structure changes to fiber-like-structure (Figure 3(e)). Later, the fiber-like structure turns shorter and shorter, resulting in sphere-fiber-transition structure (Figure 3(e) and (f)), and finally forms spherical particles (Figure 3(g)). At the beginning of the reaction, cetyltrimethylammonium bromide forms micelles where polymerization occurs. When ammonium persulfate is added to a solution of cetyltrimethylammonium bromide and triethanolamine, some white flocculent precipitate appears immediately. Few minutes later, the white precipitate disappears and the mixture gradually turns into black. The precipitate (CTA) 2 S 2 O 8, which forms lamellar mesostructure and provides templates for polymerization, plays a key role in the transformation of the morphology of polythiophene [21]. In the following, the monomer is polymerized by the anion of (CTA) 2 S 2 O 8, which forms sheet structure. The lamellar inorganic/organic mesostructures as templates formed during polymerization between surfactant cations and oxidizing anions are degraded automatically after polymerization. With the po- lymerization occurring, some holes appear and enlarge, and unique sphere-fiber-transition structure presents. This structure is concentrated and splitted due to the secondary growth [22], and finally the spherical particles form. These transformations are outlined in Scheme 1. The morphological transformation process of polythiophene encourages us to study the controllable morphology. The stable morphologies, such as spherical particles, nanofibers, sphere-fiber-transition, and submicro/nanoribbons, can be obtained by controlling the ratio of oxidant to reductant. For example, keeping the ratio of triethanolamine to cetyltrimethylammonium bromide (entries 1 5 in Table 1), the morphology of polythiophene can be controlled from ribbon to fiber, then to sphere-fiber-transition, finally to sphere by increasing the rate of the use of ammonium persulfate (Figure 4). Similar results have also been observed by changing the concentration of triethanolamine (entries 4, and 6 10 in Table 1) or cetyltrimethylammonium bromide (entries 8, 11, 12 in Table 1). Increasing the triethanolamine or cetyltrimethylammonium bromide, the morphology Scheme 1 Schematic representations of the proposed mechanism of forming spherical polythiophene csb.scichina.com
4 Table 1 Preparation and physical property of polythiophenes Reaction reagent Time Temp. Conv. Conductivity Entry CTAB APS (g) TEA (g) (h) ( ) (%) (S/cm) (g) Figure 6 SEM images of polythiophene prepared by (a) 45 mmol, (b) 51 mmol, and (c) 57 mmol cetyltrimethylammonium bromide. ARTICLES Figure 7 TGA curves of polythiophene prepared by 45 mmol cetyltrimethylammonium bromide, 36 mmol ammonium persulfate and different amounts of triethanolamine. Figure 4 SEM images of polythiophene prepared by (a) 15 mmol, (b) 18 mmol, (c) 29 mmol, (d) 36 mmol, and (e) 48 mmol ammonium persulfate. Figure 5 SEM images of polythiophene prepared by (a) 26 mmol, (b) 35 mmol, (c) 44 mmol, (d) 53 mmol, (e) 71 mmol, and (f ) 88 mmol triethanolamine. changes from spherical particles to submicroribbons (Figure 5) or from sphere-fiber transition to fibers and then to ribbons (Figure 6), respectively. The TGA data (Figure 7) show that the polythiophene is decomposed by one-step over various concentration of the triethanolamine (entries 6, 8, 10 in Table 1), which is not consistent with the previous reports [13,23,24] due to the crosslink bonds between thiophene rings (α-β bonds and β-β bonds). However, the polythiophene synthesized by this method is almost as stable as it was synthesized in previous work. By increasing the concentration of the triethanolamine (entries 4, and 6 10 in Table 1), the conductivity increases as shown in Table 1 with the change of the morphologies of polythiophene from sphere particles to ribbons. Both the polymerization degree and the crosslink degree have great effects on the conductivity of polythiophene (entries 4, and 6 10 in Table 1), and the data clearly show that the polythiophene prepared by this method has potential application to the semiconductor devices and materials. 3 Conclusion Various morphologies of polythiophene such as spherical particle, fiber, and ribbon have been successfully prepared by chemical oxidative polymerization in the POLYMER CHEMISTRY Liu R C et al. Chinese Science Bulletin June 2009 vol. 54 no
5 presence of phase transfer catalyst in aqueous medium. The properties of the polythiophene have been tested, and a mechanism for the polymerization has been proposed. The morphologies of polythiophene could be controlled in ribbons, fibers and spherical particles by changing the concentration of reductant, oxidant and PTC (cetyltrimethylammonium bromide). In addition, this chemical oxidative polymerization method is a general route to make various morphologies of conductive polymer in mild condition. 1 Yamamoto T, Sanechika K, Yamamoto A. Preparation of thermostable and electric-conducting poly(2,5-thienylene). J Polym Sci Polym Lett Ed, 1980, 18: Skotheim T, Reynolds J, Elsenbamer R. Handbook of Conducting Polymers. 2nd ed. New York: Marcel Dekker, Perzon E, Wang X, Zhang F, et al. Design, synthesis and properties of low band gap polyfluorenes for photovoltaic devices. Synth Met, 2005, 154: Ho H, Najari A, Leclerc M. Optical detection of DNA and proteins with cationic polythiophenes. Acc Chem Res, 2008, 41: Mwaura J K, Zhao X, Jiang H, et al. Spectral broadening in nanocrystalline TiO 2 solar cells based on poly(p-phenylene ethynylene) and polythiophene sensitizers. Chem Mater, 2006, 18: Zou Y, Wu W, Sang G, et al. Polythiophene derivative with phenothiazine-vinylene conjugated side chain: Synthesis and its application in field-effect transistors. Macromolecules, 2007, 40: Waltman R J, Bargon J, Diaz A F. Electrochemical studies of some conducting polythiophene films. J Phys Chem, 1983, 87: Lin J W P, Dudek L P. Synthesis and properties of poly(2,5- Thienylene). J Polym Sci Polym Chem Ed, 1980, 18: Yoshino K, Hayashi S, Sugimoto R. Preparation and properties of conducting heterocyclic polymer films by chemical method. Jpn J Appl Phys Part 2- Lett, 1984, 23: Jung Y J, Lee J M, Cheong I W, et al. Luminescent polymer latex particles prepared by oxidative polymerization in emulsion polymerization. Macromol Symp, 2007, 249: Lee J M, Lee S J, Jung J Y, et al. Fabrication of nano-structured polythiophene nanoparticles in aqueous dispersion. Curr Appl Phys, 2008, 8: Huang L Y, Hou W B, Liu Z P, et al. Polypyrrole-coated styrene-butyl acrylate copolymer composite particles with tunable conductivity. Chinese Sci Bull, 2005, 50: Gök A, Omastová M, Yavuz A G. Synthesis and characterization of polythiophenes prepared in the presence of surfactants. Synth Met, 2007, 157: Toshima N, Hara S. Direct synthesis of conducting polymers from simple monomers. Prog Polym Sci, 1995, 20: Ballav N, Biswas M. Preparation and evaluation of a nanocomposite of polythiophene with Al 2 O 3. Polym Int, 2003, 52: Wang C, Schindler J L, Kannewurf C R, et al. Poly(3,4-ethylenedithiathiophene). A new soluble conductive polythiophene derivative. Chem Mater, 1995, 7: Casado J, Hernandez V, Hotta S, et al. Vibrational spectra of charged defects in a series of α, α -dimethyl end-capped oligothiophenes induced by chemical doping with iodine. J Chem Phys, 1998, 109: Yildiz U H, Sahin E, Akhemdov I M, et al. A new soluble conducting polymer and its electrochromic devices. J Polym Sci Part A: Polym Chem, 2006, 44: Kim Y H, Hotta S, Heeger A J. Infrared photoexcitation and doping studies of poly(3-methylthienylene). Phys Rev B, 1987, 36: Furukawa Y, Akimoto M, Harada I. Vibrational key bands and electrical conductivity of polythiophene. Synth Met, 1987, 18: Zhang X, Zhang J, Liu Z, et al. Inorganic/organic mesostructure directed synthesis of wire/ribbon-like polypyrrole nanostructures. Chem Commun, 2004, Huang J, Kaner R B. Nanofiber formation in the chemical polymerization of aniline: A mechanistic study. Angew Chem Int Ed, 2004, 43: Karim M R, Lee C J, Lee M S. Synthesis and characterization of conducting polythiophene/carbon nanotubes composites. J Polym Sci Part A: Polym Chem, 2006, 44: Gök A, Koçak E D, Aydoğdu S. Synthesis and characterization of PT/PS/SiO 2 nanocomposite in nonaqueous medium by chemical method. J Appl Polym Sci, 2005, 96: csb.scichina.com
Synthesis and Microwave Absorption Property of Cr Doped Poly-aniline
International Journal of Allied Practice, Research and Review Website: www.ijaprr.com (ISSN 2350-1294) Synthesis and Microwave Absorption Property of Cr Doped Poly-aniline V. G. Phadnis *1, and M. N. Nyayate
More informationFacile Synthesis and Catalytic Properties of CeO 2 with Tunable Morphologies from Thermal Transformation of Cerium Benzendicarboxylate Complexes
Electronic Supplementary Information Facile Synthesis and Catalytic Properties of CeO 2 with Tunable Morphologies from Thermal Transformation of Cerium Benzendicarboxylate Complexes Yuhua Zheng, Kai Liu,
More informationControllable Synthesis of Functional Polyaniline Nanotubes Via A Complex Template Ying WANG, Donghao SUN a and Yanfeng GUO
Advanced Materials Research Submitted: 20140913 ISS: 16628985, Vols. 11201121, pp 220224 Accepted: 20150402 doi:10.4028/www.scientific.net/amr.11201121.220 nline: 20150731 2015 Trans Tech Publications,
More informationThe CdS and CdMnS nanocrystals have been characterized using UV-visible spectroscopy, TEM, FTIR, Particle Size Measurement and Photoluminiscence.
Synthesis of CdS and CdMns Nanocrystals in Organic phase Usha Raghavan HOD, Dept of Information Technology VPM s Polytechnic, Thane Maharashtra Email id: usharagha@gmail.com Abstract: The present work
More informationPermeable Silica Shell through Surface-Protected Etching
Permeable Silica Shell through Surface-Protected Etching Qiao Zhang, Tierui Zhang, Jianping Ge, Yadong Yin* University of California, Department of Chemistry, Riverside, California 92521 Experimental Chemicals:
More informationMOPHOLOGY OF POLYANILINE NANOTUBE WITH VARIOUS LEVEL OF Fe3O4 NANOPARTICLES AND THEIR ELECTRICAL CONDUCTIVITIES BY ULTRASONIC DISPERSION METHOD
MOPHOLOGY OF POLYANILINE NANOTUBE WITH VARIOUS LEVEL OF Fe3O4 NANOPARTICLES AND THEIR ELECTRICAL CONDUCTIVITIES BY ULTRASONIC DISPERSION METHOD Mahmoud Auwal Adamu, M. K. Mustafa and Nurun Najwa Binti
More informationMagnetic halloysite: an envirmental nanocatalyst for the synthesis of. benzoimidazole
doi:10.3390/ecsoc-21-04726 Magnetic halloysite: an envirmental nanocatalyst for the synthesis of benzoimidazole Ali Maleki*, Zoleikha Hajizadeh Catalysts and Organic Synthesis Research Laboratory, Department
More informationSupporting Information for: Three-Dimensional Cuprous Oxide Microtube Lattices with High Catalytic
Supporting Information for: Three-Dimensional Cuprous Oxide Microtube Lattices with High Catalytic Activity Templated by Bacterial Cellulose Nanofibers Guigao Liu, Fang He*, Xiaoqing Li, Sihui Wang, Lijun
More informationCarbon nanotube coated snowman-like particles and their electro-responsive characteristics. Ke Zhang, Ying Dan Liu and Hyoung Jin Choi
Supporting Information: Carbon nanotube coated snowman-like particles and their electro-responsive characteristics Ke Zhang, Ying Dan Liu and Hyoung Jin Choi Experimental Section 1.1 Materials The MWNT
More informationSupporting Information:
Supporting Information: Columnar Self-assembly of Cu 2 S Hexagonal Nanoplates Induced by Tin (IV)-X Complex Inorganic Surface Ligand Xiaomin Li, Huaibin Shen, Jinzhong Niu, Sen Li, Yongguang Zhang, Hongzhe
More informationSupplementary Information
Supplementary Information Fabrication of Novel Rattle-Type Magnetic Mesoporous carbon Microspheres for Removal of Microcystins Xinghua Zhang and Long Jiang* Beijing National Laboratory for Molecular Science
More informationPolyaniline-SbO 2 Composites: Preparation, Characterization and a c conductivity Study
RESEARCH INVENTY: International Journal of Engineering and Science ISBN: 2319-6483, ISSN: 2278-4721, Vol. 1, Issue 11 (December 2012), PP 09-13 www.researchinventy.com Polyaniline-SbO 2 Composites: Preparation,
More informationSynthesis and characterization of poly (Itaconic Acid-m-Phenylenediamine)
Synthesis and characterization of poly (Itaconic Acid-m-Phenylenediamine) Chuanxing Wang, Pengfei Wang, Qinhong Xu, Zhe Wei and Yumin Wu a College of Chemical Engineering, Qingdao University of Science
More informationSupporting Information. Graphene Oxide-Palladium Modified Ag-AgBr: A Novel Visible-Light- Responsive Photocatalyst for the Suzuki Coupling Reaction**
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Supporting Information Graphene Oxide-Palladium Modified Ag-AgBr: A Novel Visible-Light- Responsive
More informationSupporting Information
Supporting Information Dynamic Interaction between Methylammonium Lead Iodide and TiO 2 Nanocrystals Leads to Enhanced Photocatalytic H 2 Evolution from HI Splitting Xiaomei Wang,, Hong Wang,, Hefeng Zhang,,
More informationSupporting information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2015 Supporting information The Assembly of Vanadium (IV)-Substituted Keggin-type
More informationElectronic supplementary information. A longwave optical ph sensor based on red upconversion
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Electronic supplementary information A longwave optical ph sensor based on red upconversion
More informationSYNTHESIS OF CADMIUM SULFIDE NANOSTRUCTURES BY NOVEL PRECURSOR
Nanomaterials: Applications and Properties (NAP-2011). Vol. 1, Part I 107 SYNTHESIS OF CADMIUM SULFIDE NANOSTRUCTURES BY NOVEL PRECURSOR M. Salavati Niasari 1,2* 1 Department of Inorganic Chemistry, Faculty
More informationGrowth of silver nanocrystals on graphene by simultaneous reduction of graphene oxide and silver ions with a rapid and efficient one-step approach
Growth of silver nanocrystals on graphene by simultaneous reduction of graphene oxide and silver ions with a rapid and efficient one-step approach Xiu-Zhi Tang, a Zongwei Cao, b Hao-Bin Zhang, a Jing Liu
More informationenzymatic cascade system
Electronic Supplementary Information Fe 3 O 4 -Au@mesoporous SiO 2 microsphere: an ideal artificial enzymatic cascade system Xiaolong He, a,c Longfei Tan, a Dong Chen,* b Xiaoli Wu, a,c Xiangling Ren,
More informationPOLYPYRROLE FILMS PREPARED BY CHEMICAL OXIDATION OF PYRROLE IN AQUEOUS FeCl 3 SOLUTION
Journal of Science and Arts Year 10, No. 1 (12), pp. 53-58, 2010 POLYPYRROLE FILMS PREPARED BY CHEMICAL OXIDATION OF PYRROLE IN AQUEOUS FeCl 3 SOLUTION DRAGOŞ-VIOREL BREZOI Valahia University of Targoviste,130024,
More informationSupplementary Information
Supplementary Information Facile preparation of superhydrophobic coating by spraying a fluorinated acrylic random copolymer micelle solution Hui Li, a,b Yunhui Zhao a and Xiaoyan Yuan* a a School of Materials
More informationSolution reduction synthesis of amine terminated carbon quantum dots
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Solution reduction synthesis of amine terminated carbon quantum dots Keith Linehan and Hugh
More informationImmobilization of BiOX (X=Cl, Br) on activated carbon fibers as
Electronic Supplementary Material (ESI) for Dalton Transactions. This journal is The Royal Society of Chemistry 2014 Immobilization of BiOX (X=Cl, Br) on activated carbon fibers as recycled photocatalysts
More informationElectronic Supplementary Information (ESI) Green synthesis of shape-defined anatase TiO 2 nanocrystals wholly exposed with {001} and {100} facets
Electronic Supplementary Information (ESI) Green synthesis of shape-defined anatase TiO 2 nanocrystals wholly exposed with {001} and {100} facets Lan Wang, a Ling Zang, b Jincai Zhao c and Chuanyi Wang*
More informationPreparation of Fe 3 O 2 Nanostructures via Inverse Micelle Method and Study of Their Magnetic Properties for Biological Applications
International Journal of Bio-Inorganic Hybrid Nanomaterials Preparation of Fe 3 O 4 @SiO 2 Nanostructures via Inverse Micelle Method and Study of Their Magnetic Properties for Biological Applications Afsaneh
More informationControlled self-assembly of graphene oxide on a remote aluminum foil
Supplementary Information Controlled self-assembly of graphene oxide on a remote aluminum foil Kai Feng, Yewen Cao and Peiyi Wu* State key Laboratory of Molecular Engineering of Polymers, Department of
More informationSupporting Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2015 Supporting Information 1. Synthesis of perovskite materials CH 3 NH 3 I
More informationState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing , China
Electronic Supplementary Material A Co-N/C hollow-sphere electrocatalyst derived from a metanilic CoAl layered double hydroxide for the oxygen reduction reaction, and its active sites in various ph media
More informationPreparation, Characterization and comparative Temperature dependent Electrical Properties of Polythiophene & its Nanocomposites using Carbon Nanotubes
IOSR Journal of Applied Physics (IOSR-JAP) e-issn: 2278-4861. Volume 3, Issue 3 (Mar. - Apr. 2013), PP 54-58 Preparation, Characterization and comparative Temperature dependent Electrical Properties of
More informationPolythiophene Microspheres Synthesized by Transition Metal Mediated Oxidative Dispersion Polymerization
Polythiophene Microspheres Synthesized by Transition Metal Mediated Oxidative Dispersion Polymerization ZI WANG, YANFANG WANG, NANTAO HU, LIANGMING WEI, SHAOXIONG CHEN, YAFEI ZHANG National Key Laboratory
More informationGeneral Synthesis of Two-Dimensional Patterned Conducting Polymer-Nanobowl Sheet via Chemical Polymerization
Communication DOI: 10.1002/marc.200600047 771 Summary: A general method for the generation of twodimensional (2D) ordered, large-area, and liftable conducting polymer-nanobowl sheet has been demonstrated
More informationUrchin-like Ni-P microstructures: A facile synthesis, properties. and application in the fast removal of heavy-metal ions
SUPPORTING INFORMATION Urchin-like Ni-P microstructures: A facile synthesis, properties and application in the fast removal of heavy-metal ions Yonghong Ni *a, Kai Mi a, Chao Cheng a, Jun Xia a, Xiang
More informationSupporting Information
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 214 Supporting Information Lei Liu, ab Yijie Xia, b Jie Zhang* b a) China Center for Modernization
More informationCHEMICAL POLYMERIZATION OF SUBSTITUTED DERIVATIVES OF ANILINE IN OXALIC ACID MEDIUM
Sci. Revs. Chem. Commun.: 2(3), 2012, 387-391 ISSN 2277-2669 CHEMICAL POLYMERIZATION OF SUBSTITUTED DERIVATIVES OF ANILINE IN OXALIC ACID MEDIUM M. G. WANKHEDE * Department of Physics, Government Polytechnic,
More informationElectronic Supplementary Information (ESI)
Electronic Supplementary material (ESI) for Nanoscale Electronic Supplementary Information (ESI) Synthesis of Nanostructured Materials by Using Metal-Cyanide Coordination Polymers and Their Lithium Storage
More informationSynthesis and Characterization of Polypyrrole/ Copper (II) Oxide Nanocomposite Electrolyte for Fuel Cell Application
IOSR Journal of Applied Chemistry (IOSR-JAC) e-issn: 2278-5736.Volume 10, Issue 7 Ver. III (July. 2017), PP 51-55 www.iosrjournals.org Synthesis and Characterization of Polypyrrole/ Copper (II) Oxide Nanocomposite
More informationSupplementary Information:
Supplementary Information: One-Step and Rapid Synthesis of Clean and Monodisperse Dendritic Pt Nanoparticles and Their High Performance Toward Methanol Oxidation and p-nitrophenol Reduction Jun Wang, Xin-Bo
More informationCooperative Template-Directed Assembly of Mesoporous Metal-Organic Frameworks
Supporting Information Cooperative Template-Directed Assembly of Mesoporous Metal-Organic Frameworks Lin-Bing Sun, Jian-Rong Li, Jinhee Park, and Hong-Cai Zhou* Department of Chemistry, Texas A&M University,
More informationO-Allylation of phenols with allylic acetates in aqueous medium using a magnetically separable catalytic system
Supporting information for -Allylation of phenols with allylic acetates in aqueous medium using a magnetically separable catalytic system Amit Saha, John Leazer* and Rajender S. Varma* Sustainable Technology
More informationSynthesis and characterization of hybride polyaniline / polymethacrylic acid/ Fe 3 O 4 nanocomposites
Synthesis and characterization of hybride polyaniline / polymethacrylic acid/ Fe 3 O 4 nanocomposites Mohammad Reza Saboktakin*, Abel Maharramov, Mohammad Ali Ramazanov Department of Chemistry, Baku State
More informationSYNTHESIS AND CHARACTERIZATION OF POLYANILINE/POLY (P-HYDROXYANILINE)/Fe 3 O 4 MAGNETIC NANOCOMPOSITE
Journal of Non-Oxide Glasses Vol. 1, No. 3, September 2009, p. 211-215 SYNTHESIS AND CHARACTERIZATION OF POLYANILINE/POLY (P-HYDROXYANILINE)/Fe 3 O 4 MAGNETIC NANOCOMPOSITE M. R. SABOKTAKIN, A. M. MAHARRAMOV,
More informationElectronic Supporting Information for
Electronic Supporting Information for An efficient long fluorescence lifetime polymer-based sensor based on europium complex as chromophore for the specific detection of F -, CH 3 COO - -, and H 2 PO 4
More informationSupporting Information
Electronic Supplementary Material (ESI) for Chemical Communications. This journal is The Royal Society of Chemistry 2016 Supporting Information Single-crystalline Pd square nanoplates enclosed by {100}
More informationElectronic Supplementary Information. Microwave-assisted, environmentally friendly, one-pot preparation. in electrocatalytic oxidation of methanol
Electronic Supplementary Information Microwave-assisted, environmentally friendly, one-pot preparation of Pd nanoparticles/graphene nanocomposites and their application in electrocatalytic oxidation of
More informationSupporting Information
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Supporting Information Au nanoparticles supported on magnetically separable Fe 2 O 3 - graphene
More informationSupporting Information. Sol gel Coating of Inorganic Nanostructures with Resorcinol Formaldehyde Resin
Supporting Information Sol gel Coating of Inorganic Nanostructures with Resorcinol Formaldehyde Resin Na Li, a,b Qiao Zhang, b Jian Liu, c Jibong Joo, b Austin Lee, b Yang Gan,* a Yadong Yin *b a School
More informationAdsorption of Methylene Blue on Mesoporous SBA 15 in Ethanol water Solution with Different Proportions
2015 2 nd International Conference on Material Engineering and Application (ICMEA 2015) ISBN: 978-1-60595-323-6 Adsorption of Methylene Blue on Mesoporous SBA 15 in Ethanol water Solution with Different
More informationA project report on SYNTHESIS AND CHARACTERISATION OF COPPER NANOPARTICLE-GRAPHENE COMPOSITE. Submitted by Arun Kumar Yelshetty Roll no 410 CY 5066
A project report on SYNTHESIS AND CHARACTERISATION OF COPPER NANOPARTICLE-GRAPHENE COMPOSITE Submitted by Arun Kumar Yelshetty Roll no 410 CY 5066 Under the guidance of Prof. (Ms). Sasmita Mohapatra Department
More informationOne polymer for all: Benzotriazole Containing Donor-Acceptor Type Polymer as a Multi-Purpose Material
One polymer for all: Benzotriazole Containing Donor-Acceptor Type Polymer as a Multi-Purpose Material Abidin Balan a, Derya Baran a, Gorkem Gunbas a,b, Asuman Durmus a,b, Funda Ozyurt a and Levent Toppare
More informationInternational Journal of Scientific & Engineering Research, Volume 5, Issue 3, March-2014 ISSN
156 Copper Nanoparticles: Green Synthesis Characterization Y.Suresh*1, S.Annapurna*2, G.Bhikshamaiah*3, A.K.Singh#4 Abstract Present work describes the synthesis nanoparticles using papaya extract as a
More informationEncapsulation of enzyme in metal ion-surfactant nanocomposites for
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2017 Supporting information for Encapsulation of enzyme in metal ion-surfactant nanocomposites for catalysis
More informationPREPARATION, CHARACTERISATION AND PHOTOCATALYTIC ACTIVITY OF TERNARY GRAPHENE-Fe 3 O 4 :TiO 2 NANOCOMPOSITES
Digest Journal of Nanomaterials and Biostructures Vol. 13, No. 2, April - June 2018, p. 499-504 PREPARATION, CHARACTERISATION AND PHOTOCATALYTIC ACTIVITY OF TERNARY GRAPHENE-Fe 3 O 4 :TiO 2 NANOCOMPOSITES
More informationElectrogenerated Upconverted Emission from Doped Organic Nanowires
Electrogenerated Upconverted Emission from Doped Organic Nanowires Qing Li, Chuang Zhang, Jian Yao Zheng, Yong Sheng Zhao*, Jiannian Yao* Electronic Supplementary Information (ESI) 1 Experimental details
More informationRoom Temperature Hydrogen Generation from Hydrous Hydrazine for Chemical Hydrogen Storage
(Supporting Information) Room Temperature Hydrogen Generation from Hydrous Hydrazine for Chemical Hydrogen Storage Sanjay Kumar Singh, Xin-Bo Zhang, and Qiang Xu* National Institute of Advanced Industrial
More information[Supplementary Information] One-Pot Synthesis and Electrocatalytic Activity of Octapodal Au-Pd Nanoparticles
[Supplementary Information] One-Pot Synthesis and Electrocatalytic Activity of Octapodal Au-Pd Nanoparticles Jong Wook Hong, Young Wook Lee, Minjung Kim, Shin Wook Kang, and Sang Woo Han * Department of
More informationSynthesis of Highly Conductive Polypyrrole Nanoparticles via Microemulsion Polymerization
Journal of Metals, Materials and Minerals, Vol.18 No.2 pp.27-31, 2008 Amparat REUNG-U-RAI, Artita PROM-JUN, Walaiporn PRISSANAROON-OUAJAI *, and Sirisart OUAJAI Department of Industrial Chemistry, Faculty
More informationSynthesis of condensed polynuclear aromatic resin from furfural extract oil of reduced-pressure route II
Synthesis of condensed polynuclear aromatic resin from furfural extract oil of reduced-pressure route II Wu Mingbo, Jiang Wei, Wang Yuwei, Li Shibin and Zheng Jingtang Abstract: with high aromatic content
More informationThe characterization of MnO nanostructures synthesized using the chemical bath deposition method
The characterization of MnO nanostructures synthesized using the chemical bath deposition method LF Koao 1, F B Dejene 1* and HC Swart 2 1 Department of Physics, University of the Free State (Qwaqwa Campus),
More informationSupporting Information:
Supporting Information: In Situ Synthesis of Magnetically Recyclable Graphene Supported Pd@Co Core-Shell Nanoparticles as Efficient Catalysts for Hydrolytic Dehydrogenation of Ammonia Borane Jun Wang,
More informationHybrid Gold Superstructures: Synthesis and. Specific Cell Surface Protein Imaging Applications
Supporting Information Hybrid Gold Nanocube@Silica@Graphene-Quantum-Dot Superstructures: Synthesis and Specific Cell Surface Protein Imaging Applications Liu Deng, Ling Liu, Chengzhou Zhu, Dan Li and Shaojun
More informationSynthesis of nano-sized anatase TiO 2 with reactive {001} facets using lamellar protonated titanate as precursor
Supporting Information Synthesis of nano-sized anatase TiO 2 with reactive {001} facets using lamellar protonated titanate as precursor Liuan Gu, Jingyu Wang *, Hao Cheng, Yunchen Du and Xijiang Han* Department
More informationTetraethyl orthosilicate (TEOS, 99 %), resorcinol, formalin solution (37 wt. %),
Supporting Information A Versatile Cooperative Template-Directed Coating Method to Construct Uniform Microporous Carbon Shell for Multifunctional Core-shell Nanocomposites Buyuan Guan, Xue Wang, Yu Xiao,
More informationSupporting Information. Reduction- and Thermo-Sensitive Star Polypeptide Micelles. and Hydrogels for On-Demand Drug Delivery
Supporting Information Reduction- and Thermo-Sensitive Star Polypeptide Micelles and ydrogels for n-demand Drug Delivery Dong-Lin Liu, Xiao Chang, Chang-Ming Dong* Department of Polymer Science & Engineering,
More informationSupporting Information s for
Supporting Information s for # Self-assembling of DNA-templated Au Nanoparticles into Nanowires and their enhanced SERS and Catalytic Applications Subrata Kundu* and M. Jayachandran Electrochemical Materials
More informationA General Synthesis of Discrete Mesoporous Carbon Microspheres through a Confined Self- Assembly Process in Inverse Opals
A General Synthesis of Discrete Mesoporous Carbon Microspheres through a Confined Self- Assembly Process in Inverse Opals Zhenkun Sun,, Yong Liu, Bin Li, Jing Wei, Minghong Wang, Qin Yue, Yonghui Deng,
More informationMagnetic nanoparticle-supported proline as a recyclable and recoverable ligand for the CuI catalyzed arylation of nitrogen nucleophiles
Magnetic nanoparticle-supported proline as a recyclable and recoverable ligand for the CuI catalyzed arylation of nitrogen nucleophiles Gagan Chouhan, Dashan Wang and Howard Alper* Centre for Catalysis
More informationA Hydrophilic/Hydrophobic Janus Inverse-Opal
Supporting information A Hydrophilic/Hydrophobic Janus Inverse-Opal Actuator via Gradient Infiltration Dajie Zhang #, Jie Liu //#, Bo Chen *, Yong Zhao, Jingxia Wang * //, Tomiki Ikeda, Lei Jiang //. CAS
More informationControlled Assembly of Organic Whispering Gallery Mode Microlasers as Highly Sensitive Chemical Sensors
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2017 Electronic Supplementary Information Controlled Assembly of Organic Whispering Gallery Mode Microlasers
More informationHigh-Performance Semiconducting Polythiophenes for Organic Thin Film. Transistors by Beng S. Ong,* Yiliang Wu, Ping Liu and Sandra Gardner
Supplementary Materials for: High-Performance Semiconducting Polythiophenes for Organic Thin Film Transistors by Beng S. Ong,* Yiliang Wu, Ping Liu and Sandra Gardner 1. Materials and Instruments. All
More informationMacroporous bubble graphene film via template-directed ordered-assembly for high rate supercapacitors
Electronic Supporting Information for Macroporous bubble graphene film via template-directed ordered-assembly for high rate supercapacitors Cheng-Meng Chen* a, Qiang Zhang b, Chun-Hsien Huang c, Xiao-Chen
More informationCatalytic Decomposition of Formaldehyde on Nanometer Manganese Dioxide
Modern Applied Science April, 29 Catalytic Decomposition of Formaldehyde on Nanometer Manganese Dioxide Xiujuan Chu & Hua Zhang (Corresponding author) Tianjin Municipal Key Lab of Fibres Modification and
More informationElectronic Supplementary Material. Methods. Synthesis of reference samples in Figure 1(b) Nano Res.
Electronic Supplementary Material Shaped Pt Ni nanocrystals with an ultrathin Pt-enriched shell derived from one-pot hydrothermal synthesis as active electrocatalysts for oxygen reduction Jun Gu 1,, Guangxu
More informationGraphene Oxide / Polyaniline Nanostructures: Transformation of 2D sheet to 1D Nanotube and in-situ Reduction
Electronic Supplementary Information (ESI) Graphene Oxide / Polyaniline Nanostructures: Transformation of 2D sheet to 1D Nanotube and in-situ Reduction Utpal Rana and Sudip Malik * Polymer Science Unit,
More informationPreparation and characterization of poly(styrenemethacrylic acid)/mcm-41 core/shell nanocomposite microspheres
e-polymers 2009, no. 121 http://www.e-polymers.org ISSN 1618-7229 Preparation and characterization of poly(styrenemethacrylic acid)/mcm-41 core/shell nanocomposite microspheres Yansheng Zhao, * Xingji
More informationSUPPORTING INFORMATION
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2014 SUPPORTING INFORMATION Materials Graphite powder (SP-1 graphite) was obtained from Bay carbon.
More informationSupporting Information
Supporting Information High Performance Electrocatalyst: Pt-Cu Hollow Nanocrystals Xiaofei Yu, a Dingsheng, a Qing Peng a and Yadong Li* a a Department of Chemistry, Tsinghua University, Beijing, 100084
More informationMacroporous bubble graphene film via template-directed ordered-assembly for high rate supercapacitors
Electronic Supporting Information for Macroporous bubble graphene film via template-directed ordered-assembly for high rate supercapacitors Cheng-Meng Chen* a, Qiang Zhang b, Chun-Hsien Huang c, Xiao-Chen
More informationSupporting Information. Dai-Wen Pang,
Supporting Information Ag Se Quantum Dots with Tunable Emission in the Second Near-Infrared Window Chun-Nan Zhu,, Peng Jiang,, Zhi-Ling Zhang,, Dong-Liang Zhu,, Zhi-Quan Tian, *,,, and Dai-Wen Pang, Key
More informationSacrifical Template-Free Strategy
Supporting Information Core/Shell to Yolk/Shell Nanostructures by a Novel Sacrifical Template-Free Strategy Jie Han, Rong Chen and Rong Guo* School of Chemistry and Chemical Engineering, Yangzhou University,
More informationElectronic Supplementary Information
Electronic Supplementary Information Selective Diels-Alder cycloaddition on semiconducting single-walled carbon nanotubes for potential separation application Jiao-Tong Sun, Lu-Yang Zhao, Chun-Yan Hong,
More informationSupplementary Information. Seeding Approach to Noble Metal Decorated Conducting Polymer Nanofiber Network
Supplementary Information Seeding Approach to Noble Metal Decorated Conducting Polymer Nanofiber Network Zhen Liu, Selcuk Poyraz, Yang Liu, Xinyu Zhang* Department of Polymer and Fiber Engineering, Auburn
More informationCHAPTER 3. OPTICAL STUDIES ON SnS NANOPARTICLES
42 CHAPTER 3 OPTICAL STUDIES ON SnS NANOPARTICLES 3.1 INTRODUCTION In recent years, considerable interest has been shown on semiconducting nanostructures owing to their enhanced optical and electrical
More informationand their Maneuverable Application in Water Treatment
Hierarchical Films of Layered Double Hydroxides by Using a Sol-Gel Process and their Maneuverable Application in Water Treatment Yufei Zhao, Shan He, Min Wei,* David G. Evans, Xue Duan State Key Laboratory
More informationSupporting Information
Supporting Information Enhanced Photocatalytic Activity of Titanium Dioxide: Modification with Graphene Oxide and Reduced Graphene Oxide Xuandong Li,* Meirong Kang, Xijiang Han, Jingyu Wang, and Ping Xu
More informationSynthesis and Electrical Property of Polythiophene/Sol-gel Silver Nanoparticle-based Polyethylene Composite
International Journal of Composite Materials 2016, 6(2): 43-47 DOI: 10.5923/j.cmaterials.20160602.01 ynthesis and Electrical Property of Polythiophene/ol-gel ilver Nanoparticle-based Polyethylene Composite
More informationSynthesis and Characterization of Poly [2-(3,7- dimethyloctyloxy)-5-methoxy-p-phenylenevinylene] (MDMO-PPV) by Gilch Polymerization
International Journal of Chemistry and Chemical Engineering. ISSN 2248-9924 Volume 3, Number 2 (2013), pp. 89-94 Research India Publications http://www.ripublication.com Synthesis and Characterization
More informationMagnetically-driven selective synthesis of Au clusters on Fe 3 O 4 Nanoparticles
Electronic Supplementary Material (ESI) for Chemical Communications Magnetically-driven selective synthesis of Au clusters on Fe 3 O 4 Nanoparticles Víctor Sebastian, M. Pilar Calatayud, Gerardo F. Goya
More informationElectronic Supporting Information (ESI)
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2015 Journal of Materials Chemistry A Electronic Supporting Information (ESI)
More informationEasy synthesis of hollow core, bimodal mesoporous shell carbon nanospheres and their. application in supercapacitor
Electronic Electronic Supplementary Information Easy synthesis of hollow core, bimodal mesoporous shell carbon nanospheres and their application in supercapacitor Bo You, Jun Yang,* Yingqiang Sun and Qingde
More informationDivision of Fuel Cells, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2016 Supporting information Tuned Depositing Ag clusters on ZrO 2 Nanocrystals from Silver Mirror
More informationElectronic supplementary information
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2018 Electronic supplementary information Heterogeneous nucleation and growth of highly crystalline
More informationPOLYPYRROLE NANOTUBES PREPARED BY DIFFERENT AZO-DYES. Jitka ŠKODOVÁ, Dušan KOPECKÝ
POLYPYRROLE NANOTUBES PREPARED BY DIFFERENT AZO-DYES Jitka ŠKODOVÁ, Dušan KOPECKÝ Department of Physics and Measurements, Institute of Chemical Technology in Prague, Technická 5,166 28 Praque 6,Czech Republic,
More informationA novel AgIO 4 semiconductor with ultrahigh activity in photodegradation of organic dyes: insights into the photosensitization mechanism
Supporting Information for: A novel AgIO 4 semiconductor with ultrahigh activity in photodegradation of organic dyes: insights into the photosensitization mechanism Jianting Tang*, Datang Li*, Zhaoxia
More informationElectronic Supplementary Information
Electronic Supplementary Information Formation of MS-Ag and MS (M=Pb, Cd, Zn) nanotubes via microwave-assisted cation exchange and their enhanced photocatalytic activities Yanrong Wang, a Wenlong Yang,
More informationEngineering electronic structure of Two-Dimensional Subnanopore. nanosheet by Molecular Titanium-oxide Incorporation for Enhanced
Electronic Supplementary Material (ESI) for Chemical Science. This journal is The Royal Society of Chemistry 2015 Electronic Supplementary Information for Engineering electronic structure of Two-Dimensional
More informationThis is a repository copy of All-acrylic film-forming colloidal polymer/silica nanocomposite particles prepared by aqueous emulsion polymerization.
This is a repository copy of All-acrylic film-forming colloidal polymer/silica nanocomposite particles prepared by aqueous emulsion polymerization. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/79025/
More informationElectronic supplementary information
Electronic supplementary information Surface plasmon resonance enhanced upconversion luminescence in aqueous media for TNT selective detection Nina Tu and Leyu Wang* State Key Laboratory of Chemical Resource
More informationPreparation of Nanocomposites Polypyrrole and Zinc Oxide Thin Film Characterization and its Application of Gas Sensor
NANO VISION, Vol.5(4-6), 89-94, April-June 2015 (An International Research Journal of Nano Science & Technology), www.nano-journal.org ISSN 2231-2579 (Print) ISSN 2319-7633 (Online) Preparation of Nanocomposites
More informationThree Dimensional Nano-assemblies of Noble Metal. Nanoparticles-Infinite Coordination Polymers as a Specific
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Electronic Supplementary Information Three Dimensional Nano-assemblies of Noble Metal Nanoparticles-Infinite
More information