Issue 7, 2021

Efficient and steady production of 1 : 2 syngas (CO/H2) by simultaneous electrochemical reduction of CO2 and H2O

Abstract

Efficient generation of synthetic gas (syngas) through the electrochemical reduction of CO2 and H2O is a promising route to realize the conversion and storage of electricity. The production of syngas with a controlled CO/H2 ratio is significant for the subsequent preparation of value-added chemicals. Herein, a guest–host pyrolysis strategy is employed to synthesize Co–C/Nx-based single-site catalytic materials. The as-prepared materials possess a high graphitic degree of carbon, which supports the rapid electron transport and promotes efficient electrochemical reduction reactions. As a result, these materials can serve as excellent electrocatalysts for the production of syngas by the electrochemical reduction of CO2 and H2O, which exhibits high production rates and steady CO/H2 ratio (v : v = 1 : 2) at wide-range electrochemical windows. The faradaic efficiency reaches nearly 100%, and the formation rate reaches as high as 1.08 mol g−1 h−1 at 1.0 V vs. RHE.

Graphical abstract: Efficient and steady production of 1 : 2 syngas (CO/H2) by simultaneous electrochemical reduction of CO2 and H2O

Supplementary files

Article information

Article type
Research Article
Submitted
17 noy 2020
Accepted
05 yan 2021
First published
06 yan 2021

Inorg. Chem. Front., 2021,8, 1695-1701

Efficient and steady production of 1 : 2 syngas (CO/H2) by simultaneous electrochemical reduction of CO2 and H2O

W. Yang, J. Zhang, R. Si, L. Cao, D. Zhong and T. Lu, Inorg. Chem. Front., 2021, 8, 1695 DOI: 10.1039/D0QI01351J

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