Synergistic effects of interface and valence state on boosting electrochemical CO2 reduction activity of La2CuO4

Shiya Bian; Xuekun Jin; Jinxing Mi; Fengjuan Chen; Li Cai; Ziyu Wang; Junhua Li; Jianjun Chen

Catalysis Communications (Jan 2024)

Synergistic effects of interface and valence state on boosting electrochemical CO2 reduction activity of La2CuO4

Shiya Bian,
Xuekun Jin,
Jinxing Mi,
Fengjuan Chen,
Li Cai,
Ziyu Wang,
Junhua Li,
Jianjun Chen

Affiliations

Shiya Bian: Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China
Xuekun Jin: Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China
Jinxing Mi: Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China
Fengjuan Chen: Corresponding authors.; Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China
Li Cai: Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China
Ziyu Wang: Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China
Junhua Li: Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China
Jianjun Chen: Corresponding authors.; Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, Xinjiang, P. R. China; Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi, Xinjiang 830046, China; School of Environment, Tsinghua University, Beijing 100084, China

Journal volume & issue: Vol. 186
p. 106836

Abstract

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The electrochemical CO2 reduction reaction (CER) to methane (CH4) has received great attention. Here, we proposed an efficient method to facilitate the conversion of CO2-to-CH4 by creating a two-phase interface over urea-modified La2CuO4 catalyst. The most optimized one exhibits the highest selectivity (22%) for CH4 and the best activity (14 mA cm−2) and stability (5 h) at the potential of −1 V vs. reversible hydrogen electrode. The enhanced CER performance can be attributed to the establishment of interfacial effect within the two-phase, which facilitates the reduction of Cu2+ and promotes the active sites concentration.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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