Structure of the active component and catalytic properties of catalysts prepared by the reduction of layered nickel aluminosilicates

Autor:	A. A. Khasin, N. A. Baronskaya, Vladimir I. Zaikovskii, T. M. Yur'eva, Valentin N. Parmon, Valerii I. Bukhtiyarov, Demeshkina Margarita P, T. P. Minyukova, Vasily V. Kaichev
Rok vydání:	2006
Předmět:	Hydrogen Inorganic chemistry chemistry.chemical_element Amesite Disproportionation General Chemistry engineering.material Catalysis Methane Computer Science Applications Steam reforming Thermogravimetry Nickel chemistry.chemical_compound chemistry Modeling and Simulation engineering
Zdroj:	Kinetics and Catalysis. 47:412-422
ISSN:	1608-3210 0023-1584
Popis:	The reduction of Ni-Mg aluminosilicates with the amesite structure was studied using thermogravimetry, high-resolution electron microscopy, XPS, and XRD. It was found that the reduction with hydrogen at 920 K resulted in the formation of nickel particles coated with a difficult-to-reduce amorphous oxide shell. The reduced samples were incapable of chemisorbing oxygen; however, they exhibited a high adsorption capacity for hydrogen. The Ni0 core-oxide shell decorated particles were highly active in steam methane reforming and CO hydrogenation reactions. At the same time, they were inactive in the formation of graphite-like carbon in both methane decomposition and CO disproportionation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4198a44192249c2f1e59703329e24a64 https://doi.org/10.1134/s002315840603013x Zobrazit plný text záznamu Plný text ve formátu PDF