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This report demonstrated the iso-butanol direct synthesis from syngas over varied alkali metals modified Cr/ZnO catalyst. The Cr/ZnO catalyst was prepared by a general co-precipitation method and then modified with varied alkali metals: Li, Na, K and Cs. The prepared alkali metals modified catalysts, Cr/ZnO–Li, Cr/ZnO–Na, Cr/ZnO–K and Cr/ZnO–Cs, were evaluated by the reaction of iso-butanal direct...
A simply manipulated approach, named “physically coating” (PhyC), was initially developed to construct a new core–shell-like silicoaluminophosphate (SAPO-46) encapsulated Cr/ZnO capsule catalyst. The method reported here is very accessible, repeatable, and scalable, overcoming much practical problems faced by the industrial preparation of zeolite capsule catalysts through traditional hydrothermal...
A zeolite capsule catalyst Cr/ZnO–S–Z was prepared successfully by a novel dual-layer method, in which one layer of neutral Silicalite-1 zeolite shell was first synthesized on the bimetallic Cr/ZnO core catalyst, acting as the intermediate layer for the following H-type H-ZSM-5 zeolite shell direct synthesis on its surface. By using this dual-layer method, it can be easily realized that the formation...
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