Cobalt macrocyclic complex-catalyzed selective electroreduction of CO2 to CO

Cobalt 5,15-diazaporphyrin as a novel molecular catalyst immobilized onto carbon nanotubes was developed for highly efficient electrocatalytic CO2 reduction to CO with a faradaic efficiency above 99% at −0.7 V and −0.8 V versus a reversible hydrogen electrode. Compared to cobalt phthalocyanine, the...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2023-12, Vol.25 (24), p.10366-10371
Main Authors: Wen-Jun, Xie, Jin-Mei, Chen, Zhi-Wen, Yang, Liang-Nian He
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon monoxide
Carbon nanotubes
Catalysts
Chemical reduction
Cobalt
Electron density
Electronegativity
Green chemistry
Lewis acid
Nanotechnology
Nanotubes
Nitrogen atoms
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Summary:Cobalt 5,15-diazaporphyrin as a novel molecular catalyst immobilized onto carbon nanotubes was developed for highly efficient electrocatalytic CO2 reduction to CO with a faradaic efficiency above 99% at −0.7 V and −0.8 V versus a reversible hydrogen electrode. Compared to cobalt phthalocyanine, the decrease in electronegative nitrogen atoms at the meso position effectively increases the electron density of the central metal, making it easier to react with Lewis acid CO2.
ISSN:1463-9262
1463-9270
DOI:10.1039/d3gc03919f