Catalysts, catalyst precursors, and catalytic systems are provided. The catalysts generally comprise a substrate that includes a group IB metal and a substantially porous, microcrystalline layer that includes the metal and that is disposed on at least a portion of the substrate. The catalysts are prepared by providing a substrate that includes group IB metal, oxidizing said substrate to produce an oxide coating of said group IB metal, and reducing substantially all of said oxidized substrate.
The catalysts are useful in the preparation of aldehydes by vapor phase dehydrogenation of alcohols.
提供催化剂、催化剂前体和催化系统。催化剂一般包括一个包含 IB 族
金属的基底和一个包含该
金属并设置在基底至少一部分上的多孔微晶层。催化剂的制备方法是提供包括 IB 族
金属的基底,氧化所述基底以产生所述 IB 族
金属的氧化物涂层,然后还原基本上所有所述氧化基底。
催化剂可用于通过醇的气相脱氢制备醛。