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Chemcial Industry and Engineering 2024, Vol. 41 Issue (2) :12-23    DOI: 10.13353/j.issn.1004.9533.20220341
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Synthesis of 2D NiFe-Nx-C materials for electrocatalytic CO2 reduction
LI Jing, LI Yang, FAN Xiaobin, ZHANG Fengbao, ZHANG Guoliang, XIA Qing, PENG Wenchao
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract In order to reduce the energy barrier of CO2 activation at Ni-N sites and solve the problem of CO poisoning at Fe-N sites, an ultra-thin two-dimensional carbon-based catalyst (ZNF-900) with NiFe-Nx active sites was synthesized by limited solvent growth and pyrolysis methods. The ZNF-900 has ultra-high selectivity (FECO>97%) and CO partial current density (jCO=37.3 mA·cm-2) for electrocatalytic CO2 reduction to CO. By XPS, Raman, EIS, Tafel slope and other analytic methods, it is proved that there is a synergistic promoting effect between Ni and Fe, which promotes the adsorption of CO2 molecules and the desorption of CO products on the surface of catalysts.
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LI Jing
LI Yang
FAN Xiaobin
ZHANG Fengbao
ZHANG Guoliang
XIA Qing
PENG Wenchao
Keywordstwo-dimensional carbon-based catalyst   synergistic catalysis   CO2 reduction   electrocatalysis     
Received 2022-05-19;
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LI Jing, LI Yang, FAN Xiaobin, ZHANG Fengbao, ZHANG Guoliang, XIA Qing, PENG Wenchao.Synthesis of 2D NiFe-Nx-C materials for electrocatalytic CO2 reduction[J]  Chemcial Industry and Engineering, 2024,V41(2): 12-23
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