Supporting Information A Scalable Synthesis of Few-layer MoS2 Incorporated into Hierarchical Porous Carbon Nanosheets for High-performance Li and Na Ion Battery Anodes Seung-Keun Park, a,b Jeongyeon Lee, a Sungyool Bong, c Byungchul Jang, a Kwang-dong Seong, a Yuanzhe Piao* a,b,d a Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, 145 Gwanggyo-ro, Yeongtong-gu, Suwon si, Gyeonggi-do, 443-270, Republic of Korea. b Advanced Institutes of Convergence Technology, 145 Gwanggyo-ro, Yeongtong-gu, Suwon si, Gyeonggi-do, 443-270, Republic of Korea. c Korea Testing and Research Institute, 98, Gyoyukwon-ro, Gwacheon-si, Gyeonggi-do, Republic of Korea d Center for Nanoparticle Research, Institute for Basic Science (IBS), Republic of Korea. *Corresponding author: Yuanzhe Piao: parkat9@snu.ac.kr; S-1
Figure S1. SEM and TEM images of MHPC composite before silica etching S-2
Figure S2. (a) Low- and (b) high-magnification SEM images of MoS2/C composites synthesized by using oleic acid as the precursors. S-3
Figure S3. Large scale synthesis of MHPC composites (using 1 ml of OA and 0.52 g of ATTM) S-4
Figure S4. XRD pattern of MHPC-0.05, MHPC-0.2 and MoS2 powder synthesized without OA. S-5
Figure S5. TGA curves of MHPC-0.05, MHPC-0.2, and MoS2/C composites S-6
Figure S6. SEM images of (a, c) MHPC-0.05 and (b, d) MHPC-0.2 composites. S-7
Figure S7. SEM images of MoS2/C composites synthesized without SiO2 template. S-8
Figure S8. TEM images of (a, c) MHPC-0.05 and (b, d) MHPC-0.2 composites. S-9
Figure S9. (a) The nitrogen sorption isotherm of MHPC-0.05 and 0.2, and (b) their pore size distribution curves. S-10
Figure S10. (a) Cyclic voltammograms of bare MoS 2 at a scanning rate of 0.2 mv s -1. (b) Galvanostatic discharge/charge profiles of bare MoS 2 at 0.1 A g -1. S-11
Figure S11. Electrochemical performance of MHPC-0.05, 0.1 and 0.2 for LIBs (a) Long-term cycling performance at a current density of 1 A g -1 and (b) rate capability. S-12
Figure S12. Electrochemical impedance spectra of MHPC-0.1 and bare MoS2 electrodes in LIBs (a) before cycling and (b) after 50 cycling. S-13
Table S1. Atomic and mass concentration of Mo, S and C of MHPC-0.1 from high resolution XPS peak integration. Peak Position BE (ev) FWHM (ev) Atomic Mass Atomic Conc % Mass Conc % S 2p 166.5 1.879 32.065 12.06 19.67 Mo 3d 227.3 0.929 95.922 6.23 30.40 C 1s 282.4 1.646 12.011 81.71 49.93 Table S2. Comparison of the electrochemical performance of some related composite materials for LIBs in the literature Sample Specific discharge capacity Current density Voltage windows Reference MHPC 496 ma h g -1 10 A g -1 0.01-3.0 V Our work MoS2/Carbon nanosheets 280 ma h g -1 10 A g -1 0.005-3.0V S1 3D radially oriented MoS2 nanospheres 354 ma h g -1 2 A g -1 0.01-3.0 V S2 CMK-3/MoS2 composites 380 ma h g -1 1 A g -1 0.005-3.0 V S3 3D hierarchical MoS2/C 511 ma h g -1 1 A g -1 0.005-3.0 V S4 MoS2 nanocages 680 ma h g -1 1 A g -1 0.005-3.0 V S5 Table S3. Comparison of the electrochemical performance of some related composite materials for SIBs in the literature Sample Specific discharge capacity Current density Voltage windows Reference MHPC 293 ma h g -1 1 A g -1 0.01-2.9 V Our work MoS2/graphene paper 173 ma h g -1 0.2 A g -1 0.1-2.25 V S6 MoS2/graphene synthesized via microwave 214 ma h g -1 1 A g -1 0.005-2.5 V S7 Liquid exfoliated MoS2 120 ma h g -1 0.8 A g -1 0.4-2.5 V S8 MoS2/CNT 328 ma h g -1 0.5 A g -1 0.001-2.5 V S9 MoS2/graphene 352 ma h g -1 0.64 A g -1 0.01-3.0 V S10 S-14
Reference [S1] [S2] [S3] [S4] [S5] [S6] [S7] [S8] [S9] Zhou, J. W.; Qin, J.; Zhang, X.; Shi, C. S.; Liu, E. Z.; Li, J. J.; Zhao, N. Q.; He, C. N., 2D Space-Confined Synthesis of Few-Layer MoS2 Anchored on Carbon Nanosheet for Lithium-Ion Battery Anode. ACS Nano 2015, 9, 3837-3848. Zhang, S. P.; Chowdari, B. V. R.; Wen, Z. Y.; Jin, J.; Yang, J. H., Constructing Highly Oriented Configuration by Few-Layer MoS2: Toward High-Performance Lithium-Ion Batteries and Hydrogen Evolution Reactions. ACS Nano 2015, 9, 12464-12472. Xu, X.; Fan, Z. Y.; Yu, X. Y.; Ding, S. J.; Yu, D. M.; Lou, X. W., A Nanosheets-on- Channel Architecture Constructed from MoS2 and CMK-3 for High-Capacity and Long-Cycle-Life Lithium Storage. Adv. Energy Mater. 2014, 4, 1400902. Hu, L. R.; Ren, Y. M.; Yang, H. X.; Xu, Q., Fabrication of 3D Hierarchical MoS2/Polyaniline and MoS2/C Architectures for Lithium-Ion Battery Applications. ACS Appl. Mater. Interfaces 2014, 6, 14644-14652. Zuo, X. X.; Chang, K.; Zhao, J.; Xie, Z. Z.; Tang, H. W.; Li, B.; Chang, Z. R., Bubble- Template-Assisted Synthesis of Hollow Fullerene-Like MoS2 Nanocages as a Lithium Ion Battery Anode Material. J. Mater. Chem. A 2016, 4, 51-58. David, L.; Bhandavat, R.; Singh, G., MoS2/Graphene Composite Paper for Sodium- Ion Battery Electrodes. ACS Nano 2014, 8, 1759-1770. Qin, W.; Chen, T. Q.; Pan, L. K.; Niu, L. Y.; Hu, B. W.; Li, D. S.; Li, J. L.; Sun, Z., MoS2-Reduced Graphene Oxide Composites Via Microwave Assisted Synthesis for Sodium Ion Battery Anode with Improved Capacity and Cycling Performance. Electrochim. Acta 2015, 153, 55-61. Bang, G. S.; Nam, K. W.; Kim, J. Y.; Shin, J.; Choi, J. W.; Choi, S. Y., Effective Liquid-Phase Exfoliation and Sodium Ion Battery Application of MoS2 Nanosheets. ACS Appl. Mater. Interfaces 2014, 6, 7084-7089. Zhang, S.; Yu, X. B.; Yu, H. L.; Chen, Y. J.; Gao, P.; Li, C. Y.; Zhu, C. L., Growth of Ultrathin MoS2 Nanosheets with Expanded Spacing of (002) Plane on Carbon Nanotubes for High-Performance Sodium-Ion Battery Anodes. ACS Appl. Mater. Interfaces 2014, 6, 21880-21885 [S10] Xie, X. Q.; Ao, Z. M.; Su, D. W.; Zhang, J. Q.; Wang, G. X., MoS2/Graphene Composite Anodes with Enhanced Performance for Sodium-Ion Batteries: The Role of the Two-Dimensional Heterointerface. Adv. Funct. Mater. 2015, 25, 1393-1403. S-15