Magnetic and catalytic properties of sintered nickel catalysts for the methanation reaction

Autor:	L. N. Mulay, Philip L. Walker, Raymond C. Everson, O.P. Mahajan
Rok vydání:	2007
Předmět:	Materials science Metallurgy General Engineering Sintering chemistry.chemical_element General Medicine Catalysis Nickel Ferromagnetism chemistry Chemical engineering Methanation Single domain Anisotropy
Zdroj:	Journal of Chemical Technology and Biotechnology. 29:1-7
ISSN:	1935-181X 0142-0356
DOI:	10.1002/jctb.503290102
Popis:	Ni catalysts supported on Al2O3, as received commercially and subjected to sintering at 723–973 K, were characterised in terms of distinct magnetic structures. It was found that the Ni on all the catalysts consisted of a mixture of single domain structures, with and without anisotropic effects, and multidomain (ferromagnetic) structures. The formation of the multidomain particles during the sintering process coincides with a decrease in catalytic activity for the reaction CO+3H2°CH4+H2O. From this study it was concluded that the methanation reaction is ‘magnetic-structure’ sensitive.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c374f78de829de9ffaf18f9248e8ca2d https://doi.org/10.1002/jctb.503290102 Zobrazit plný text záznamu