DataVXACS Applied Materials & InterfacesPaper
journal article·2019-06-26

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

Tengfei Li, Hongmei Wei, Tianmo Liu, Gengfeng Zheng, Subiao Liu, Jing-Li Luo

ACS Applied Materials & Interfaces· Volume 11· Issue 25
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Source abstract

Abstract

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

Research context

Energy storageCatalysis & surfaces

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Ionic liquids properties and applications · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada

College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China

Laboratory of Advanced Materials, Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, China

Funding

Ministry of Science and Technology of the People's Republic of China · Shanghai Municipal Human Resources and Social Security Bureau · Science and Technology Commission of Shanghai Municipality · China Scholarship Council · Natural Sciences and Engineering Research Council of Canada · National Natural Science Foundation of China

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