Issue 3, 2023

Tuning B–N pairs in porous carbon nanorods for electrochemical conversion of CO2 to syngas with controllable CO/H2 ratios

Abstract

The direct electroreduction of CO2 into syngas with controllable CO/H2 ratios is a promising approach to rebalance the CO2 cycle and store intermittent renewable energy. However, it is still challenging to achieve stable CO/H2 ratios using low cost but efficient electrocatalysts. Herein, we reported a class of N/B-codoped porous carbon nanorods (NBCs) with tunable B–N pairs as metal-free electrocatalysts for syngas production. Through modulating the contents of N/B dopants and corresponding B–N pairs for the NBCs, the syngas generation with tunable CO/H2 ratios from 1 to 12.3 under different potentials (−0.7, −0.75, and −0.8 V vs. RHE) can be realized from the carbon dioxide reduction reaction. This study opens up a new avenue for carbon-based metal-free catalysts to syngas production with controllable CO/H2 ratios.

Graphical abstract: Tuning B–N pairs in porous carbon nanorods for electrochemical conversion of CO2 to syngas with controllable CO/H2 ratios

Supplementary files

Article information

Article type
Paper
Submitted
14 oct. 2022
Accepted
17 déc. 2022
First published
21 déc. 2022

Sustainable Energy Fuels, 2023,7, 661-670

Tuning B–N pairs in porous carbon nanorods for electrochemical conversion of CO2 to syngas with controllable CO/H2 ratios

X. Ma, L. Shi, L. Zhang, C. Hu and D. Liu, Sustainable Energy Fuels, 2023, 7, 661 DOI: 10.1039/D2SE01423H

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