CoN<sub>4</sub> active sites in a graphene matrix for the highly efficient electrocatalysis of CO<sub>2</sub> reduction

ZHANG Hui-nian; WANG Hui-qi; JIA Su-ping; CHANG Qing; LI Ning; LI Ying; SHI Xiao-lin; LI Zi-yuan; HU Sheng-liang

doi:10.1016/S1872-5805(21)60061-6

Volume 37 Issue 4

Jul. 2022

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Article Navigation > New Carbon Mater. > 2022 > 37(4): 734-742

ZHANG Hui-nian, WANG Hui-qi, JIA Su-ping, CHANG Qing, LI Ning, LI Ying, SHI Xiao-lin, LI Zi-yuan, HU Sheng-liang. CoN4 active sites in a graphene matrix for the highly efficient electrocatalysis of CO2 reduction. New Carbon Mater., 2022, 37(4): 734-742. doi: 10.1016/S1872-5805(21)60061-6

Citation:

ZHANG Hui-nian, WANG Hui-qi, JIA Su-ping, CHANG Qing, LI Ning, LI Ying, SHI Xiao-lin, LI Zi-yuan, HU Sheng-liang. CoN₄ active sites in a graphene matrix for the highly efficient electrocatalysis of CO₂ reduction. New Carbon Mater., 2022, 37(4): 734-742. doi: 10.1016/S1872-5805(21)60061-6

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CoN₄ active sites in a graphene matrix for the highly efficient electrocatalysis of CO₂ reduction

doi: 10.1016/S1872-5805(21)60061-6

School of Energy and Power Engineering, North University of China, Taiyuan 030051, China

More Information

Corresponding author: ZHANG Hui-nian, Lecturer. E-mail: zhanghuinian123@163.com; HU Sheng-liang, Professor. E-mail: hsliang@yeah.net
Received Date: 2021-01-27
Rev Recd Date: 2021-04-23

Available Online: 2021-04-30

Publish Date: 2022-07-20

Abstract

Abstract

Developing highly selective, economical and stable catalysts for the electrochemical conversion of CO₂ into value-added carbon products to mitigate both CO₂ emission and the energy crisis is challenging. We report an efficient and robust electrocatalyst for the CO₂ reduction reaction (CO₂RR) by embedding CoN₄ active sites in a graphene matrix. These highly dispersed CoN₄ sites show an extraordinary CO₂RR activity, with a high CO Faradaic efficiency of nearly 95% at −0.76 V (vs. RHE) and remarkable durability. The corresponding overpotential is 0.65 V. Our finding could pave the way for the design at the atomic scale of highly efficient electrocatalysts for the CO₂RR.
- CO₂ electroreduction,
- Cobalt,
- Single-atom catalysts,
- Electrochemistry,
- Graphene

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References(36)

References

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