Mechanisms of methanation of carbon dioxide and carbon monoxide over nickel/alumina catalysts
作者： Shin-ichiro Fujita , Masato Nakamura , Tosiaki Doi , Nobutsune Takezawa
DOI: 10.1016/0926-860X(93)80212-9
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摘要: Abstract By the use of diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS) and temperature-programmed reaction (TPRx) method, it was shown that two types adsorbed CO in bridged structures (referred to as weakly CO(a) strongly (a) species) were predominantly present along with formate species methanation 2 on Ni/Al O 3 . The amount carbidic carbon C linear practically negligible. In CO, a considerable CO(a), C(a) formate, methozide surface hydrocarbon species. produced by dissociation species, being hydrogenated methane. On basis reactions under transient states those H , /H CO/H suggested one steps involved hydrogenation (a ) methane markedly retarded presence
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