期刊
CATALYSIS COMMUNICATIONS
卷 149, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.catcom.2020.106264
关键词
CO2 hydrogenation; Methanol; Cu/Zn/Zr catalysts
资金
- Natural Science Foundation of Ningxia Province [2020AAC03021]
- National Natural Science Foundation of China [21862013]
- Project of Key Research Plan of Ningxia [2019BDE03003]
The study demonstrated a volcano-type configuration of structural and catalytic performance of Cu/Zn/Zr catalysts, indicating the structure sensitivity of reaction. Factors such as the surface area of Cu, surface adsorbed oxygen, and the concentration of moderately strong basic sites play significant roles in the reaction's activity.
A series of Cu/Zn/Zr catalysts with different Zr/(Cu + Zn) ratio were prepared by the precipitation method and tested for the synthesis of methanol (CO2/H(2)mixture). The physicochemical properties of the solids were investigated by XRD, BET, H-2-TPR, N2O-H-2 titration, XPS and CO2-TPD techniques. An interesting volcano-type profile of structural and catalytic performance was demonstrated, which proved the structure sensitivity of reaction. The surface area of Cu, the surface adsorbed oxygen and the moderately strong basic sites concentration should be considered as significant activity parameters for the reaction.
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