Activity switching of Sn and In species in Heusler alloys for electrochemical CO2 reduction

Kazuyuki Iwase; Takayuki Kojima; Naoto Todoroki; Itaru Honma

doi:10.1039/D2CC00754A

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Activity switching of Sn and In species in Heusler alloys for electrochemical CO₂ reduction†

Kazuyuki Iwase,

*^a Takayuki Kojima,

‡^abc Naoto Todoroki

‡^d and Itaru Honma^a

Author affiliations

* Corresponding authors

^a Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
E-mail: kazuyuki.iwase.a6@tohoku.ac.jp

^b Faculty of Textile Science and Technology, Shinshu University, 3-15-1, Tokida, Ueda, Nagano 386-8567, Japan

^c Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3, Aramaki aza Aoba, Aoba-ku, Sendai, Miyagi, Japan

^d Graduate School of Environmental Studies, Tohoku University, 6-6-2 Aobayama, Aoba-ku, Sendai, Miyagi 980-8579, Japan

Abstract

The electrochemical CO₂ reduction reaction (CO₂RR) activity of Ni₂MnIn and Ni₂MnSn Heusler alloys was investigated. Although pure In, Sn and Ni₂MnIn generated formate as the major product, Ni₂MnSn generated H₂ as the major product. The CO₂RR selectivity could be controlled by selecting the constituent elements of the intermetallic catalysts.

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Article information

DOI: https://doi.org/10.1039/D2CC00754A
Article type: Communication
Submitted: 07 Feb 2022
Accepted: 21 Mar 2022
First published: 22 Mar 2022

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Chem. Commun., 2022,58, 4865-4868

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Activity switching of Sn and In species in Heusler alloys for electrochemical CO₂ reduction

K. Iwase, T. Kojima, N. Todoroki and I. Honma, Chem. Commun., 2022, 58, 4865 DOI: 10.1039/D2CC00754A

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Chemical Communications