Copper-based catalysts for CO₂ hydrogenation: a perspective on active sites

Abstract

CO2 hydrogenation is regarded as a revolutionized field in heterogeneous catalysis, not only mitigating environmental problems caused by the greenhouse gas but also producing valuable chemicals. This perspective, going over...

CO2 to dimethyl ether (DME): structural and functional insights of hybrid catalysts

“…42,56–58 The first research on hybrid/bifunctional catalytic systems involved the physical mixing of a methanol synthesis catalyst and an acid system, typically a Cu/ZnO/Al 2 O 3 system for the synthesis of CH 3 OH and γ-Al 2 O 3 or zeolites as an acid catalyst for the dehydration of CH 3 OH. 59,60 Physically mixed hybrid catalysts are made by combining the methanol synthesis and methanol dehydration catalysts by dry powder mixing or grinding. The methanol synthesis and methanol dehydration processes are completed prior to the mixing process, which is a hallmark of the physically mixed hybrid catalyst.…”