Partial oxidation of methane using Pt/CeZrO2/Al2O3 catalyst—Effect of the thermal treatment of the support

Autor:	Fabio B. Noronha, Carla E. Hori, Juan A.C. Ruiz, Lisiane V. Mattos, Vanessa Bongalhardo Mortola
Rok vydání:	2008
Předmět:	Chemistry Inorganic chemistry chemistry.chemical_element General Chemistry Thermal treatment Catalysis Methane chemistry.chemical_compound Transition metal Partial oxidation Platinum Syngas BET theory
Zdroj:	Catalysis Today. :906-912
ISSN:	0920-5861
Popis:	In this work, the effect of the thermal treatment temperature of the support on the behavior of Pt/CeZrO 2 /Al 2 O 3 catalysts on the methane partial oxidation was evaluated. BET surface area, metal dispersion and oxygen storage capacities and hydrogen consumption during TPR decreased with the increase of the thermal aging temperature. During the reaction of partial oxidation of methane, Pt/CeZrO 2 /Al 2 O 3 aged at 1073 and 1173 K presented the best performance. This result was attributed to the higher reducibility of the support and to the larger metal dispersion presented by these materials. These properties favor the carbon removal mechanism from the metal surface, avoiding deactivation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::879318d57b8271ef6d802539edb1537f https://doi.org/10.1016/j.cattod.2007.12.067 Zobrazit plný text záznamu Full Text from ScienceDirect