Design of dual functional adsorbent/catalyst system for the control of VOC’s by using metal-loaded hydrophobic Y-zeolites

Autor:	Son-Ki Ihm, Se-Won Baek, Jeong-Rang Kim
Rok vydání:	2004
Předmět:	chemistry.chemical_compound Adsorption Catalytic oxidation Transition metal Chemistry Catalyst support Inorganic chemistry General Chemistry Zeolite Catalysis Toluene oxidation Silver oxide
Zdroj:	Catalysis Today. :575-581
ISSN:	0920-5861
DOI:	10.1016/j.cattod.2004.06.107
Popis:	To design a good combined adsorbent/catalyst dual functional system for the control of the low concentration VOC, both adsorption and catalytic activity test over metal-loaded zeolite HY were carried out. Hydrophobic HY zeolite was selected as a good adsorbent candidate among the tested zeolite adsorbents and extended to the catalyst support material by adding various transition metals. The temperature programmed surface reaction (TPSR) of toluene and methylethylketone (MEK) suggested the silver as the best candidate among the tested transition metals. Temperature programmed reductions (TPR) and O2-temperature programmed desorption (O2-TPD) on Ag/HY catalysts were carried out to explain the nature of active centre of Ag catalyst for the toluene oxidation. Silver oxide species or partially oxidized metallic silver on to the surface of metallic silver phase was proposed as an active redox site during the oxidation reaction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8da80f0c1ebbbe5a90ea1a019e2dfc2c https://doi.org/10.1016/j.cattod.2004.06.107 Zobrazit plný text záznamu Full Text from ScienceDirect