期刊
CHEMPHYSCHEM
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.202200765
关键词
Density functional calculations; Heterogeneous catalysis; Reduction; Transition metals
In this article, density-functional theory calculations are used to study the energetics of CO2 reduction to methane via the Sabatier reaction on sulfur-based transition-metal dichalcogenides (TMDs) with non-, Ni- and Cu-doping. It is found that sulfur-based TMDs with Ni/Cu doping exhibit better indicators for catalytic performance of the CO2 reduction reaction compared to non-doped and doped TMDs without active sites. Furthermore, the role of the chalcogen and dopant atoms in influencing bonding strength and type is found to have a much bigger influence on the reaction than the transition metal.
Transition-metal dichalcogenides (TMDs) have promising properties for their use as catalysts of CO2 reduction to methane via the Sabatier reaction. In this article we use density-functional theory calculations to gain insight into the energetics of this reaction for Mo/W-based and S/Se-based TMDs with non-, Ni- and Cu-doping. We show that sulfur-based TMDs with Ni/Cu doping exhibit better indicators for catalytic performance of the CO2 reduction reaction than non-doped and doped TMDs without active sites. In addition, the role of the transition metal was found to a much smaller influence in the reaction than the role of the chalcogen and dopant atoms, which influence the bonding strength and type, respectively.
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