EFFECT OF COBALT ON THE PHYSICOCHEMICAL AND CATALYTIC PROPERTIES OF MOLYBDENUM DISULFIDE.

被引：0
|
作者：
Kondrat'ev, S.I.
Nikishenko, S.B.
Antoshin, G.V.
Slinkin, A.A.
Fedorovskaya, E.A.
Minachev, Kh.M.
机构：
来源：
Kinetics and Catalysis | 1984年 / 25卷 / 5 pt 2期
关键词：
COBALT COMPOUNDS - SPECTROSCOPIC ANALYSIS;
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摘要：
The methods of x-ray photoelectron spectroscopy (XPS) and magnetic susceptibility were used to investigate Co-MoS//2 catalysts prepared by impregnation and joint precipitation. In these two cases the distribution of Co was found to differ significantly: In the coprecipitated catalysts all the introduced Co is found in a paramagnetic state and is located in the MoS//2 structure, whereas in the impregnated catalysts approximately half the introduced Co forms a ferromagnetic phase on the external surface. It is established that the promoting effect is due only to the presence of paramagnetic cobalt.
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页码：994 / 999
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