A series of methanol synthesis catalysts, CuO/ZnO/Al 2 O 3 and CuO/ ZnO/Al 2 O 3 containing 5 mol% of manganese physically admixed with c-Al 2 O 3 were tested for the direct synthesis of dimethyl ether from syngas. The catalysts were prepared by coprecipitation of the metal nitrates with several types of alkali carbonate solution. Aqueous solutions of Na 2 CO 3 , NaHCO 3 /Na 2 CO 3 buffer, and NaHCO 3 were used as the precipitating agents to investigate the effects of the preparation method on the microstructure of the precursors and on the physicochemical properties and reactivity of the resulting catalysts. It was found that the most responsible factor in determining the catalytic activity of the methanol synthesis catalyst is the preparation method rather than the incorporation of manganese as the structure modifier. There is a substantial correlation between the copper metal surface area and the activity of the catalyst derived from the structurally active precursor, hydrotalcite-like layered double hydroxides.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.