Premium
Copper/Zinc L ‐Tartrates: Mixed Crystals and Thermolysis to a Mixture of Copper Oxide and Zinc Oxide That Is Catalytically Active in Methanol Synthesis
Author(s) -
Weiss Rainer,
Vukojević Sascha,
Baltes Christian,
d’Alcourt Raoul Naumann,
Muhler Martin,
Epple Matthias
Publication year - 2006
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200600561
Subject(s) - tartrate , chemistry , zinc , copper , inorganic chemistry , catalysis , methanol , thermal decomposition , oxide , copper oxide , nuclear chemistry , organic chemistry
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 parallel reactor. The catalytic activity shows a maximum at about equal amounts of copper and zinc whereas the specific surface area (BET surface) increases strongly when going from CuO to ZnO. This system offers a convenient, inexpensive route to CuO/ZnO precatalysts with adjustable compositions that avoids all other metals during preparation. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)