New high-selectivity hydrogenation catalysts prepared from bimetallic acetate complexes

Autor:	A. Yu. Stakheev, I. S. Mashkovskii, Olga P. Tkachenko, Galina N. Baeva
Rok vydání:	2009
Předmět:	Atmospheric pressure Chemistry Alloy Inorganic chemistry Infrared spectroscopy General Chemistry engineering.material Catalysis Homonuclear molecule Computer Science Applications Adsorption Modeling and Simulation engineering Diffuse reflection Bimetallic strip
Zdroj:	Kinetics and Catalysis. 50:768-774
ISSN:	1608-3210 0023-1584
DOI:	10.1134/s0023158409050206
Popis:	The catalytic properties of new Pd-Zn/Al2O3 catalysts in selective acetylene hydrogenation in an acetylene-ethylene mixture at 30–120°C and atmospheric pressure are reported. The catalysts prepared from the bimetallic complex Pd-Zn(OOCMe)4(OH2) are much more selective than the catalysts prepared by simultaneously supporting the homonuclear complexes Pd3(OOCMe)6 and Zn(OOCMe)2 · 2H2O. It is demonstrated by diffuse reflectance IR spectroscopy of adsorbed CO that the heat treatment of the supported bimetallic complex at 250°C in flowing H2 yields a Pd-Zn alloy on the surface. It is this alloy that ensures the high selectivity of the Pd-Zn/Al2O3 catalysts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3718ed65092f5e0743715afa22740cf8 https://doi.org/10.1134/s0023158409050206 Zobrazit plný text záznamu Plný text ve formátu PDF