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 637002, P.R. China * Corresponding authors E-mail: 0826zjjh@163.com (J. Jiang); ah_aihong@163.com (L. Ai) S-1
Figure S1 The theoretical and experimental amounts of oxygen evolution for the UTSA-16 during OER electrocatalysis. Figure S2 SEM images of UTSA-16-0.067 (a), UTSA-16-0.1 (b), UTSA-16-0.2 (c), and UTSA-16-0.4 (d) S-2
Figure S3 CVs of different UTSA-16 samples measured at different scan rates from 5 to 50 mv s-1: (a) UTSA-16-0.067, (b) UTSA-16-0.1, (c) UTSA-16-0.2 and (d) UTSA-16-0.4. 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
Table S1 Comparison of electrocatalytic OER activities for MOF-based and Co-containing catalysts (overpotentials η calculated by using the formula η = E RHE - 1.23 V). Catalyst η@10 ma cm -2 (mv) Electrolyte Reference 408 1 M KOH 320@1 ma cm -2 UTSA-16 This work 500 0.1 M KOH 360@1 ma cm -2 Cu-MOF 310@2 ma cm -2 0.5 M H 2 SO 4 S1 MAF-X27-OH 387 1 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 -2 0.1 M NaOH S5 FeTPyP-Co 330@1 ma cm -2 FeTPyP 400@1 ma cm -2 Co-WOC-1 390@1 ma cm -2 0.1 M KOH S6 NU-1000 566 ph 11 S7 Graphene-CoO 430 1 M KOH S8 CoSe 2 484 0.1 M KOH S9 Mn 3 O 4 /CoSe 2 450 0.1 M KOH S10 Co 3 O 4 nanoparticles Co 3 O 4 /carbon nanotubes 510 0.1 M KOH S11 550 1 M KOH S12 NiCo 2 S 4 @graphene 470 0.1 M KOH S13 mesoporous Co 3 O 4 525 0.1 M KOH S14 mesoporous Co 3 O 4 nanotubes 390 0.1 M KOH S15 Co 3 O 4 nanosheets 300 0.1 M KOH S16 hollow Co 3 O 4 microtubes 290 1.0 M KOH S17 S-4
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