Journal
ADVANCED SCIENCE
Volume 8, Issue 24, Pages -Publisher
WILEY
DOI: 10.1002/advs.202102886
Keywords
carbon-based materials; carbon monoxide; CO2 reduction; single-atom catalysts
Categories
Funding
- Fundamental Research Funds for the Central Universities [2019JQ03015]
- National Natural Science Foundation of China [42075169, U1810209]
- Beijing Municipal Education Commission through the Innovative Transdisciplinary Program Ecological Restoration Engineering
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Electrochemical CO2 reduction to CO using transition metal/N-doped carbon catalysts, especially Ni and Fe-N-C, shows great potential for large-scale production. The regulation of active sites in the catalysts can adjust the electrocatalytic performance for CO2 reduction.
Electrochemical CO2 reduction to value-added chemicals/fuels provides a promising way to mitigate CO2 emission and alleviate energy shortage. CO2-to-CO conversion involves only two-electron/proton transfer and thus is kinetically fast. Among the various developed CO2-to-CO reduction electrocatalysts, transition metal/N-doped carbon (M-N-C) catalysts are attractive due to their low cost and high activity. In this work, recent progress on the development of M-N-C catalysts for electrochemical CO2-to-CO conversion is reviewed in detail. The regulation of the active sites in M-N-C catalysts and their related adjustable electrocatalytic CO2 reduction performance is discussed. A visual performance comparison of M-N-C catalysts for CO2 reduction reaction (CO2RR) reported over the recent years is given, which suggests that Ni and Fe-N-C catalysts are the most promising candidates for large-scale reduction of CO2 to produce CO. Finally, outlooks and challenges are proposed for future research of CO2-to-CO conversion.
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