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. Author manuscript; available in PMC: 2019 Aug 23.
Published in final edited form as: ACS Catal. 2018 Feb 27;8(4):2789–2795. doi: 10.1021/acscatal.7b04308

Figure 2.

Figure 2.

Cyclic voltammograms of CODH adsorbed on variously modi fied TiO2 electrodes under an atmosphere of 100% CO2. (a) Electrocatalytic activity of CODH/TiO2 and that of a bare TiO2 electrode. (b) Electrocatalytic activities of CODH/AgNCs-PMAA/TiO2 and AgNCs-PMAA/TiO2 electrodes. (c) Selective inhibition of CO2 reduction by CODH/AgNCs-PMAA/TiO2 electrode in the presence of 60 mM KOCN. (d) E ffect of PMAA alone on electrocatalytic activity, observed by comparing CODH/PMAA/TiO2 with PMAA/TiO2. All solutions contained 0.2 M MES (pH 6.0, 0.1 M NaCl), with a temperature of 25 °C and a scan rate of 10 mV s−1.