Copper/Zinc L‐Tartrates: Mixed Crystals and Thermolysis to a Mixture of Copper Oxide and Zinc Oxide That Is Catalytically Active in Methanol Synthesis

Abstract

The system consisting of copper/zinc L-tartrate mixed crystals has been systematically explored in the whole range from pure copper tartrate to pure zinc tartrate. Mixed crystal L-tartrates were prepared and their thermochemical behaviour under oxygen was investigated. Oxidic precatalysts (CuO/ZnO) for catalytic tests in methanol synthesis were prepared by mild thermolysis of the mixed tartrates in air at 300°C. Catalytic tests were performed with a multi-channel

Towards ‘greener’ catalyst manufacture: Reduction of wastewater from the preparation of Cu/ZnO/Al2O3 methanol synthesis catalysts

“…These include the combustion of organic metal salts [17,15,18,19], mechano-thermal [20], sol-gel [21,22] and colloidal synthesis [23]. In addition, low-metal-loading catalysts have been prepared by impregnation or chemical vapour deposition of Cu and Zn precursors on high surface area supports [24][25][26][27].…”

The effect of co-impregnated acids on the performance of Zn-based broad spectrum respirator carbons

“…The Bragg peak positions for ZnC 4 H 4 O 6 were obtained by digitising data from Fig. 1 of reference [30]. Fig.…”

CuO/ZnO Nanoparticles in a Matrix of Amorphous Silica as High‐Surface Precursors for Methanol Synthesis

“…[6,8,11,14,[21][22][23] We have recently shown that active catalysts can also be prepared by thermolysis of bimetallic coordination compounds, [24] xerogels and aerogels, [25] and tartrate mixed crystals. [26] Copper nanoparticles in liquid dispersion were recently shown to be active as methanol catalysts, [27] as well as metal-loaded mesoporous silicates [28] and metal-oxide frameworks (MOFs). [29] Here we report on the preparation, characterization and catalytic activity of ZnO and CuO/ZnO nanocomposites which were obtained by a combination of sol-gel synthesis and photochemical oxidation which was applied earlier to cific surface area of about 110-130 m 2 g -1 (probably due to both silica and nanocrystalline CuO/ZnO) and the good catalytic activity in methanol synthesis from CO/CO 2 /H 2 synthesis gas (7 to 37 %, compared to an industrial standard methanol catalyst).…”