Abstract: The catalytic properties of ferrisilicates (analogs of ZSM-5 zeolites) in the reaction of N2O decomposition are studied. The catalytic behavior of ferrisilicates is shown to be determined by the presence of active sites (so-called alpha-centers) involving iron atoms. Decomposition of N2O on alpha-centers proceeds with formation of an active form of surface oxygen, which cannot be produced by O2 adsorption. The influence of iron on the concentration of alpha-centers and the rate of N2O decomposition is investigated in a wide range of iron contents (from 0.003 to 4.8 wt % Fe2O3). Comparison of the dependences obtained with those observed earlier for ZSM-5 type ferrialuminosilicates reveals the identity of the specific catalytic activities of active sites in both systems. The higher catalytic activity of the Fe-A-Si samples as compared with the Fe-Si systems could be accounted for by the influence of Al on the iron distribution in zeolite resulting in a higher concentration of active sites at the same iron content.

Cite: Sobolev V.I. , Panov G.I. , Kharitonov A.S. , Romannikov V.N. , Volodin A.M.
Decomposition of N2O Catalyzed by ZSM-5 Type Zeolites: the Role of Iron
Kinetics and Catalysis. 1993. V.34. N5. P.797-802. WOS РИНЦ

Original: Соболев В.И. , Панов Г.И. , Харитонов А.С. , Романников В.Н. , Володин А.М.
Каталитическое разложение N2O на цеолитах типа ZSM-5. Роль железа
Кинетика и катализ. 1993. Т.34. №5. С.887-893. РИНЦ ANCAN

Dates:

Submitted:

Oct 12, 1992

Identifiers:

Web of science:	WOS:A1993MW17100028
Elibrary:	29283888

Citing:

DB	Citing
Web of science	15
Elibrary	12