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Tuning the activity and selectivity of electroreduction of CO2 to synthesis gas using bimetallic catalysts

Open access
Lee, Ji Hoon, Kattel, Shyam, Jiang, Zhao, Xie, Zhenhua, Yao, Siyu, Tackett, Brian M., Xu, Wenqian, Marinkovic, Nebojsa S., Chen, Jingguang G.·2019·Nature Communications

Abstract

The electrochemical carbon dioxide reduction reaction to syngas with controlled CO/H 2 ratios has been studied on Pd-based bimetallic hydrides using a combination of in situ characterization and density functional theory calculations. When compared with pure Pd hydride, the bimetallic Pd hydride formation occurs at more negative potentials for Pd-Ag, Pd-Cu, and Pd-Ni. Theoretical calculations show that the choice of the second metal has a more significant effect on the adsorption strength of *H than *HOCO, with the free energies between these two key intermediates (i.e., ΔG(*H)–ΔG(*HOCO)) correlating well with the carbon dioxide reduction reaction activity and selectivity observed in the experiments, and thus can be used as a descriptor to search for other bimetallic catalysts. The results also demonstrate the possibility of alloying Pd with non-precious transition metals to promote the electrochemical conversion of CO 2 to syngas.

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Metadata

Authors
Lee, J. H., Kattel, S., Jiang, Z., Xie, Z., Yao, S., Tackett, B. M., Xu, W., Marinkovic, N. S., & Chen, J. G.
Venue
Nature Communications
Published
2019-08-19
Volume
10
Issue
1
Pages
3724-3724
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2969921980
Cited by
244
References
10
FWCI
6.65
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Tuning the activity and selectivity of electroreduction of CO2 to synthesis gas using bimetallic catalysts. https://app.cochat.ai/papers/10.1038/s41467-019-11352-0
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Lee, J. H., Kattel, S., Jiang, Z., Xie, Z., Yao, S., Tackett, B. M., Xu, W., Marinkovic, N. S., & Chen, J. G. (2019). Tuning the activity and selectivity of electroreduction of CO2 to synthesis gas using bimetallic catalysts. Nature Communications. https://doi.org/10.1038/s41467-019-11352-0

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