Effect of synthesis method on physicochemical and catalytic properties of Cu–Zn-based mesoporous nanocatalysts for water-gas shift reaction

Abstract

Two new mesoporous nanocatalysts based on CuO-ZnO/MgO were synthesized by using a modified liquid-phase method. Due to use of this method, the nanocatalysts contained an efficient ZnO/MgO phase in which MgO is incorporated into ZnO phase. The structural and catalytic properties of the nanocatalysts in the water-gas shift reaction were investigated compared with samples prepared by conventional sol-gel and liquid-phase methods as references, as well as a commercial catalyst. The results reveal that the new nanocatalysts exhibited higher surface area, lower degree of agglomeration, and higher activity than the reference samples, indicating the influence of both the synthesis method and phase composition.

Effect of turbulence in micro‐reactors on ultrafast competitive reactions in Cu‐Zn co‐precipitation

“…The Cu/ZnO catalyst, as an important industrial catalyst, is widely employed in methanol synthesis, methanol steam reforming, and low‐temperature water‐gas shift 5‐7 . The most common synthetic method is the co‐precipitation, 8,9 where co‐precipitates are formed through the rapid precipitation reaction of Cu 2+ and Zn 2+ ions.…”