Growth of Ce on Rh, surface alloy formation and the preparation and properties of Rh/ceria model planar catalysts

Autor:	James P. Warren, Richard M. Lambert, Xiankuan Zhang, Jens Enevold Thaulov Andersen
Rok vydání:	1993
Předmět:	Cerium oxide Alloy Inorganic chemistry Oxide Surfaces and Interfaces Thermal treatment engineering.material Condensed Matter Physics Surfaces Coatings and Films Catalysis chemistry.chemical_compound chemistry Chemisorption Materials Chemistry engineering Crystallite Carbon monoxide
Zdroj:	Surface Science. :222-227
ISSN:	0039-6028
DOI:	10.1016/0039-6028(93)90775-f
Popis:	Ce deposition on Rh has been studied over a range of conditions: at sufficiently high temperatures a stable surface alloy (Ce 3 Rh 2 ) is formed at all Ce coverages. Oxidation and thermal treatment of Ce overlayers leads to agglomeration and the formation of cerium oxide crystallites on an essentially bare Rh surface. The chemisorption and reactive behaviour of this latter system towards carbon monoxide very closely mimics that of practical CeO 2 /Rh catalysts: CO 2 is efficiently produced by oxygen spillover from the rare-earth oxide phase
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::552109ca20aa122a221accd81ff55c5b https://doi.org/10.1016/0039-6028(93)90775-f Zobrazit plný text záznamu