Cobalt-phthalocyanine-modified two-dimensional cobalt hydroxide complexes for highly selective electrocatalytic reduction of CO2 to CO

Zhaoyang Sun; Yanling Zhai; Lirong Zheng; Weiwei Guo; Weiwei Dong; Zijian Fang; Lei Jiao; Zhijun Zhu; Xiaoquan Lu; Jianguo Tang

doi:10.1039/D2TA07626H

Cobalt-phthalocyanine-modified two-dimensional cobalt hydroxide complexes for highly selective electrocatalytic reduction of CO₂ to CO†

Zhaoyang Sun,‡^a Yanling Zhai,‡^a Lirong Zheng,

^b Weiwei Guo,*^a Weiwei Dong,^b Zijian Fang,^a Lei Jiao,^a Zhijun Zhu,

*^a Xiaoquan Lu

*^a and Jianguo Tang

*^a

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* Corresponding authors

^a Institute of Hybrid Materials, College of Materials Science and Engineering, Institute of Molecular Metrology, Qingdao University, Qingdao, P. R. China
E-mail: guoweiwei21@qdu.edu.cn, zhuzhijun@qdu.edu.cn, luxq@nwnu.edu.cn, tang@qdu.edu.cn

^b Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, P. R. China

Abstract

Cobalt phthalocyanine (CoPc)-modified two-dimensional alpha-cobalt hydroxide (α-Co(OH)₂) catalysts exhibited excellent electrochemical performance for the reduction of CO₂ to CO. The faradaic efficiency (FE) and current density reached 98.4% and 22.4 mA cm⁻², respectively. Due to the strong interaction between the metal active sites and the support, the 4.1%-CoPc/α-Co(OH)₂ complex displayed a favorable electron density configuration, efficient charge transfer and a large electrochemical surface area.

Journal of Materials Chemistry A

Cobalt-phthalocyanine-modified two-dimensional cobalt hydroxide complexes for highly selective electrocatalytic reduction of CO₂ to CO†

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Cobalt-phthalocyanine-modified two-dimensional cobalt hydroxide complexes for highly selective electrocatalytic reduction of CO₂ to CO

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Journal of Materials Chemistry A