Thermal evolution of V(III)-containing layered double hydroxides

被引：10

作者：

Labajos, FM ^{[1
]}

Sánchez-Montero, MJ ^{[1
]}

Holgado, MJ ^{[1
]}

Rives, V ^{[1
]}

机构：

[1] Univ Salamanca, Dept Quim Inorgan, E-37008 Salamanca, Spain

来源：

THERMOCHIMICA ACTA | 2001年 / 370卷 / 1-2期

关键词：

hydrotalcite; layered double hydroxides; thermal properties; magnesium vanadium oxides;

D O I：

10.1016/S0040-6031(00)00780-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A study is reported on the thermal evolution of Mg, V layered double hydroxides with interlayer carbonate anions and different Mg/V molar ratios (from 1 to 4). Decomposition in O-2 occurs at lower temperature than that in N-2; the stability of the layered structure decreases as the V content increases. Oxidation of layer V3+ cations occurs in the same temperature range as dehydroxylation and decarbonation. The nature of the crystalline phases formed upon calcination at high temperatures strongly depends on the Mg/V molar ratio in the initial solid. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：99 / 104

页数：6

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