Bioinspired Cobalt-Citrate Metal-Organic Framework as An Efficient Electrocatalyst for Water Oxidation

Transcription

1 Supporting Information Bioinspired Cobalt-Citrate Metal-Organic Framework as An Efficient Electrocatalyst for Water Oxidation Jing Jiang*, Lan Huang, Xiaomin Liu, Lunhong Ai* Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong , P.R. China * Corresponding authors zjjh@163.com (J. Jiang); ah_aihong@163.com (L. Ai) S-1

2 Figure S1 The theoretical and experimental amounts of oxygen evolution for the UTSA-16 during OER electrocatalysis. Figure S2 SEM images of UTSA (a), UTSA (b), UTSA (c), and UTSA (d) S-2

3 Figure S3 CVs of different UTSA-16 samples measured at different scan rates from 5 to 50 mv s-1: (a) UTSA , (b) UTSA , (c) UTSA and (d) UTSA Figure S4 Cyclic voltammetry curves of the different UTSA-16 samples recorded at a scan rate of 100 mv s-1 in 1.0 M KOH solution. S-3

4 Table S1 Comparison of electrocatalytic OER activities for MOF-based and Co-containing catalysts (overpotentials η calculated by using the formula η = E RHE V). Catalyst η@10 ma cm -2 (mv) Electrolyte Reference M KOH 320@1 ma cm -2 UTSA-16 This work M KOH 360@1 ma cm -2 Cu-MOF 310@2 ma cm M H 2 SO 4 S1 MAF-X27-OH M KOH S2 Co-ZIF-9 510@1 ma cm -2 ph 13.4 S3 Co-TpBpy 400@1 ma cm -2 ph 7.0 S4 CoTPyP 400@1 ma cm M NaOH S5 FeTPyP-Co 330@1 ma cm -2 FeTPyP 400@1 ma cm -2 Co-WOC-1 390@1 ma cm M KOH S6 NU ph 11 S7 Graphene-CoO M KOH S8 CoSe M KOH S9 Mn 3 O 4 /CoSe M KOH S10 Co 3 O 4 nanoparticles Co 3 O 4 /carbon nanotubes M KOH S M KOH S12 NiCo 2 S M KOH S13 mesoporous Co 3 O M KOH S14 mesoporous Co 3 O 4 nanotubes M KOH S15 Co 3 O 4 nanosheets M KOH S16 hollow Co 3 O 4 microtubes M KOH S17 S-4

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