Study of the Real Structure of Silver Supported Catalysts of Different Dispersity

Autor:	S.N. Goncharova, A.N. Shmakov, B.S. Balzhinimaev, S. V. Tsybulya, G.N. Kryukova
Rok vydání:	1995
Předmět:	Reaction rate Crystallography Transition metal Chemistry Transmission electron microscopy Dispersity X-ray crystallography Stacking Physical and Theoretical Chemistry Crystallographic defect Catalysis
Zdroj:	Journal of Catalysis. 154:194-200
ISSN:	0021-9517
Popis:	The real structure of silver supported catalysts for ethylene epoxidation (Ag/α-Al2O3) was investigated using precision X-ray diffraction on synchrotron radiation, in situ high-temperature X-ray diffraction, and transmission electron microscopy. Stacking faults and intergrain boundaries were found to be main types of defects in the structure of silver microcrystals. In situ study revealed that under reaction conditions the intergrain boundaries remain unchanged, whereas stacking faults are annealed. We found a correlation between the reaction rate of ethylene epoxidation and parameters responsible for the relationship among the regular and defect regions in the bulk structure of silver particles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d78ae7e427c60cc83626f12daa9e28f1 https://doi.org/10.1006/jcat.1995.1160 Zobrazit plný text záznamu Full Text from ScienceDirect