Rhodium-catalyzed partial oxidation of methane to CO and H2. In situ DRIFTS studies on surface intermediates

Autor:	Manfred Baerns, O. V. Buyevskaya, Dorit Wolf, K. Walter
Rok vydání:	1994
Předmět:	Inorganic chemistry chemistry.chemical_element General Chemistry Photochemistry Oxygen Catalysis Methane Product distribution Rhodium chemistry.chemical_compound chemistry Formate Partial oxidation Carbon
Zdroj:	Catalysis Letters. 29:261-270
ISSN:	1572-879X 1011-372X
DOI:	10.1007/bf00814272
Popis:	Reaction steps in the oxidation of CH4 to CO and H2 over a Rh(1 wt%)/γ-Al2O3 catalyst were studied using in situ DRIFTS at 973 K and 0.1 MPa. Product distribution and the resulting absorption band intensities of the respective adsorbates were strongly influenced by oxygen coverage and carbon deposits on the surface. CH4 is dehydrogenated to carbon deposits and H2 and is simultaneously oxidized to CO2 and H2O. OH surface groups in the support are involved in the CHx conversion to CO via reforming reaction. The reaction of surface carbon with CO2 was assumed to contribute to CO formation. Formate is a by-product of the reaction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5a362ee369ff068052ebe467fab29020 https://doi.org/10.1007/bf00814272 Zobrazit plný text záznamu Full text from SpringerLink