Amorphous CeO2–Cu Heterostructure Enhances CO2 Electroreduction to Multicarbon Alcohols
Source abstract
Abstract
Electrochemical conversion of carbon dioxide (CO2) gas to value-added chemicals such as multicarbon (C2+) alcohols is a promising and attractive decarbonization strategy. However, there are tremendous challenges in tuning the intrinsic activity and selectivity of the catalysts to produce C2+ alcohols. In this work, we prepared a CeO2–Cu composite catalyst via a combination of metallurgy and dealloying method. The interfacial sites of amorphous CeO2–Cu heterostructure improve the adsorption of key reaction intermediates *CO and promote the C–C coupling. Significantly, they also stabilize *CH2CHO at the bifurcation step, steering the reaction pathway toward the formation of C2+ alcohols over ethylene. The CeO2–Cu catalyst achieves a remarkable faradaic efficiency of 32.9% ± 2.6% for C2+ alcohols at −0.6 V vs RHE. This work demonstrates an effective strategy of improving the intrinsic activity and selectivity of the Cu-based catalysts for the generation of C2+ alcohols.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: CO2 Reduction Techniques and Catalysts · Electrocatalysts for Energy Conversion · Ionic liquids properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, United States
School of Mechanical, Electrical and Information Engineering, Shandong University, Weihai, 264209, People’s Republic of China
School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, People’s Republic of China
School of Engineering, University of California, Merced, 5200 North Lake Road, Merced, California 95343, United States
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, People’s Republic of China
Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California, 94550, United States
Funding
Lawrence Livermore National Laboratory · National Aeronautics and Space Administration
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