Isotopic effect on electrochemical CO2 reduction activity and selectivity in H2O- and D2O-based electrolytes over palladium

Ji Hoon Lee; Brian M. Tackett; Zhenhua Xie; Sooyeon Hwang; Jingguang G. Chen

doi:10.1039/C9CC07611E

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Isotopic effect on electrochemical CO₂ reduction activity and selectivity in H₂O- and D₂O-based electrolytes over palladium†

Ji Hoon Lee,

^a Brian M. Tackett,^a Zhenhua Xie,

^b Sooyeon Hwang

^c and Jingguang G. Chen

*^ab

Author affiliations

* Corresponding authors

^a Department of Chemical Engineering, Columbia University, New York, NY 10027, USA
E-mail: jgchen@columbia.edu

^b Chemistry Division, Brookhaven National Laboratory, Upton, NY 11973, USA

^c Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA

Abstract

The isotopic effect on the electrochemical CO₂ reduction reaction (CO₂RR) is investigated in this study. A higher CO₂RR selectivity over its competing hydrogen evolution reaction was observed in D₂O-based electrolytes compared with the H₂O-based counterparts, which can be attributed to the lower [D⁺] concentration than [H⁺].

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Article information

DOI: https://doi.org/10.1039/C9CC07611E
Article type: Communication
Submitted: 27 Sep 2019
Accepted: 21 Nov 2019
First published: 21 Nov 2019

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Chem. Commun., 2020,56, 106-108

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Isotopic effect on electrochemical CO₂ reduction activity and selectivity in H₂O- and D₂O-based electrolytes over palladium

J. H. Lee, B. M. Tackett, Z. Xie, S. Hwang and J. G. Chen, Chem. Commun., 2020, 56, 106 DOI: 10.1039/C9CC07611E

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