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The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.

Protecting Copper Oxidation State via Intermediate Confinement for Selective CO2 Electroreduction to C2+ Fuels

Yang, Peng-Peng, Zhang, Xiao-Long, Gao, Fei-Yue, Zheng, Ya-Rong, Niu, Zhuang-Zhuang, Yu, Xingxing, Liu, Ren, Wu, Zhi-Zheng, Qin, Shuai, Chi, Li-Ping, Duan, Yu, Ma, Tao, Zheng, Xu-Sheng, Zhu, Jun-Fa, Wang, Hui-Juan, Gao, Min-Rui, Yu, Shu-Hong·2020·Journal of the American Chemical Society

Abstract

Selective and efficient catalytic conversion of carbon dioxide (CO 2 ) into value-added fuels and feedstocks provides an ideal avenue to high-density renewable energy storage. An impediment to enabling deep CO 2 reduction to oxygenates and hydrocarbons (e.g., C 2+ compounds) is the difficulty of coupling carbon–carbon bonds efficiently. Copper in the +1 oxidation state has been thought to be active for catalyzing C 2+ formation, whereas it is prone to being reduced to Cu 0 at cathodic potentials. Here we report that catalysts with nanocavities can confine carbon intermediates formed in situ, which in turn covers the local catalyst surface and thereby stabilizes Cu + species. Experimental measurements on multihollow cuprous oxide catalyst exhibit a C 2+ Faradaic efficiency of 75.2 ± 2.7% at a C 2+ partial current density of 267 ± 13 mA cm –2 and a large C 2+ -to-C 1 ratio of ∼7.2. Operando Raman spectra, in conjunction with X-ray absorption studies, confirm that Cu + species in the as-designed catalyst are well retained during CO 2 reduction, which leads to the marked C 2+ selectivity at a large conversion rate.

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Crossref · 10.1021/jacs.0c01699

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Metadata

Authors
Yang, P.-P., Zhang, X.-L., Gao, F.-Y., Zheng, Y.-R., Niu, Z.-Z., Yu, X., Liu, R., Wu, Z.-Z., Qin, S., Chi, L.-P., Duan, Y., Ma, T., Zheng, X.-S., Zhu, J.-F., Wang, H.-J., Gao, M.-R., & Yu, S.-H.
Venue
Journal of the American Chemical Society
Published
2020-03-16
Volume
142
Issue
13
Pages
6400-6408
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W3011311522
Cited by
709
References
57
FWCI
17.44
Type
journal article
Language
en
Open access
closed

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