Abstract: The compounds of a hydrotalcite structure formed from copper-zinc-chromium hydroxycarbonate at an increasing temperature of calcination are studied. At temperatures ranging from 300 to 350 °C, the decomposition of hydroxycarbonate occurs to yield anion-modified oxides in which chromium cations are partially present in the degree of oxidation +6. The structure of the anion-modified oxide is governed by the nature of a bivalent cation and differs from that of spinel. The formation of the spinel structure in the copper-chromium system is observed at temperatures above 450 °C. The distribution of cations over their crystallographic positions in the copper-zinc-chromium spinels depends on the Cu :Zn ratio and calcination temperature.

Cite: Makarova O.V. , Yur'eva T.M. , Plyasova L.M. , Ziborov A.V. , Kustova G.N. , Odegova G.V.
Formation of Copper-Zinc Chromites
Kinetics and Catalysis. 1995. V.36. N5. P.712-718. WOS РИНЦ ANCAN

Original: Макарова О.В. , Юрьева Т.М. , Плясова Л.М. , Зиборов А.В. , Кустова Г.Н. , Одегова Г.В.
Формирование медноцинковых хромитов
Кинетика и катализ. 1995. Т.36. №5. С.774-780. РИНЦ

Dates:

Submitted:

Sep 20, 1994

Identifiers:

Web of science:	WOS:A1995TE83400025
Elibrary:	29283692
Chemical Abstracts:	1995:947667
Chemical Abstracts (print):	124:67898

Citing:

DB	Citing
Web of science	2
Elibrary	3