Achieving Efficient CO2 Electrochemical Reduction on Tunable In(OH)3-Coupled Cu2O-Derived Hybrid Catalysts

• DOI: 10.1021/acsami.9b04580
• Publication Date: 2019-05-31T15:50:52Z
• Authors: Tengfei Li; Hongmei Wei; Tianmo Liu; Gengfeng Zheng; Subiao Liu; Jing-Li Luo
• Keywords: Overpotential; Reversible hydrogen electrode

Tunable In(OH)3-coupled Cu2O-derived hybrid catalysts are facilely synthesized to boost the selectivity and efficiency of electrochemical CO2 reduction reaction (CO2RR). The maximum faradaic (FE) 90.37% for CO production is achieved at -0.8 V versus reversible hydrogen electrode. mechanistic discussion suggests that composition-dependent synergistic effect results in enhanced on catalyst. By increasing concentration electrolyte, a dramatically current density 40.17 mA cm-2 was -1.0 0.7 M KHCO3. Furthermore, KHCO3 electrolyte with high promotes CO2RR over low overpotential range. At 290 mV, increased FE 74.05% obtained as compared 57.04% 0.1 Combining catalyst achieves efficiency, selectivity, stability CO2RR.