Study of the nature and properties of surface centers of a Ni-Cr oxide catalyst according to ir spectra of adsorbed CO and NH3 probe molecules

Study of the nature and properties of surface centers of a Ni-Cr oxide catalyst according to ir spectra of adsorbed CO and NH3 probe molecules Научная публикация

Журнал

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
ISSN: 0568-5230 , E-ISSN: 2376-8444

Вых. Данные

Год: 1991, Том: 40, Номер: 12, Страницы: 2366-2372 Страниц : 7 DOI: 10.1007/bf00959703

Авторы

Davydov A.A. ¹ , Fridman V.Z. ¹ , Mikhal'chenko E.D. ¹

Организации

1	Institute of Catalysis, Siberian Branch, Academy of Sciences of the USSR, Novosibirsk,

The modification of a Ni-Cr oxide catalyst during reduction was studied by IR spectroscopy of adsorbed CO and NH3 probe molecules. It was determined that in the starting oxidized sample the nickel cations were in the form of oxide clusters distributed over the surface of chromium oxide. As a result of reduction, they were depleted in oxygen, and metal clusters were formed and enlarged. Effective oxidation, by water vapor, of part of the surface of the metallic-nickel clusters that formed during reduction was observed.

Davydov A.A. , Fridman V.Z. , Mikhal'chenko E.D.
Study of the nature and properties of surface centers of a Ni-Cr oxide catalyst according to ir spectra of adsorbed CO and NH3 probe molecules
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 1991. V.40. N12. P.2366-2372. DOI: 10.1007/bf00959703 РИНЦ OpenAlex

Поступила в редакцию:

13 нояб. 1990 г.

РИНЦ:	30976265
OpenAlex:	W2085780456