Реферат: IR and TPD data suggest that ultra-dispersed Co catalysts (~10 – 20 Å) prepared via thermal decomposition of supported Co carbonyl complexes have a lower reactivity towards CO dissociation and a higher stability towards carbonization in a CO and/or CO-H2 mixture compared to low-dispersed Co catalysts. The Co catalysts studied have at least two surface carbon species which differ in reactivity as shown by a radioisotopic study (14CO) of the carbonization catalysts. The ultra-dispersed Co particles are characterized by an essentially lower surface carbon coverage than the large particles. It has been assumed that the limited CO dissociation on dispersed Co particles, as compared to large ones, is caused by electron and geometric effects as well as by a greater modification of their properties brought about by oxygen and carbon atoms which appear after dissociation of the initially adsorbed CO molecules. Different types of CO adsorption on Co particles having different sizes determine their specific catalytic activity and selectivity towards CO hydrogenation.

Библиографическая ссылка: Kuznetsov V.L. , Aleksandrov M.N. , Bulgakova L.N.
Peculiarities of CO Activation on Ultra-Dispersed Co Catalysts Obtained via Thermal Decomposition of Surface Carbonyl CO Complexes
Journal of Molecular Catalysis. 1989. V.55. N1. P.146-158. DOI: 10.1016/0304-5102(89)80249-4 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Даты:

Опубликована в печати:	1 нояб. 1989 г.
Опубликована online:	2 окт. 2001 г.

Идентификаторы БД:

Web of science:	WOS:A1989CG95900013
Scopus:	2-s2.0-0024769180
РИНЦ:	31090355
Chemical Abstracts:	1990:146343
Chemical Abstracts (print):	112:146343
OpenAlex:	W2026113413
Sciact:	12841

Цитирование в БД:

БД	Цитирований
Scopus	15
OpenAlex	10

Альметрики: