期刊
NEW JOURNAL OF CHEMISTRY
卷 47, 期 30, 页码 14195-14201出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3nj01363d
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The rational design of metal anchored on the carbon framework catalyst (M-N-C) is crucial for enhancing mass transfer and active site exposure in CO2 reduction reaction (CO2RR). In this study, prefabricated carbon nanotubes (CNT) were used as the carrier for M-N. The active center, M-N-C, was formed through controlled assembly and high-temperature nitriding between single-layer NiZn-layered double hydroxide (LDH) and CNT. The CNT-N-NiZn catalyst exhibited a high CO faradaic efficiency of 92.6% with a CO current density of 17.0 mA cm(-2) at -0.8 V vs. RHE in 0.5 M KHCO3 electrolyte. This study provides insights into the activity source and structure design of M-N-C catalysts.
The reasonable design of metal anchored on the carbon framework catalyst (M-N-C) for the CO2 reduction reaction (CO2RR) is crucial to fully enhancing mass transfer and exposing active sites. Herein, the prefabricated CNT was wisely selected as the carrier for M-N. In particular, M-N-C, which was identified as the active center, was constructed by controlling the assembly and high-temperature nitriding between single-layer NiZn-layered double hydroxide (LDH) and CNT. CNT-N-NiZn exhibited a high CO faradaic efficiency of 92.6% with a CO current density of 17.0 mA cm(-2) at -0.8 V vs. RHE in 0.5 M KHCO3 electrolyte. This study elucidates the M-N-C catalyst activity source and provides new insights into the M-N-C structure design.
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