ChemInform Abstract: Catalytic Combustion of Methane over Palladium Exchanged Zeolites

Autor:	John Nelson Armor, Yuejin Li
Rok vydání:	2010
Předmět:	chemistry.chemical_compound Ferrierite chemistry Inorganic chemistry chemistry.chemical_element Catalytic combustion General Medicine Zeolite Methane Mordenite Catalysis Carbon monoxide Palladium
Zdroj:	ChemInform. 25
ISSN:	0931-7597
Popis:	Palladium cation exchanged zeolites (ZSM-5, mordenite and ferrierite) were studied as catalysts for methane combustion. Pd-zeolites showed much higher activities than PdO/Al2O3. For comparable palladium loadings, PdO/Al2O3 requires a reaction temperature of ca. 70–80°C higher than Pd-ZSM-5 for conversions between 50–100%. The catalytic activity of Pd-ZSM-5 seems to be related to its reducibility. Temperature-programmed reduction experiments with carbon monoxide showed a lower reduction temperature (ca. 157°C) for Pd-ZSM-5 than for PdO/Al2O3 (225°C). Further, the positioning of the palladium by ion exchange offers a highly dispersed form of PdII supported on the high surface area zeolite.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::63e2cf4381b1770a6ea5c589b539b347 https://doi.org/10.1002/chin.199437023 Zobrazit plný text záznamu Plný text