Thermal decomposition of hydrotalcite with hexacyanoferrate(II) and hexacyanoferrate(III) anions in the interlayer

被引：18

作者：

Frost, R. L. ^{[1
]}

Musumeci, A. W. ^{[1
]}

Kloprogge, J. Theo ^{[1
]}

Weier, M. L. ^{[1
]}

Adebajo, M. O. ^{[1
]}

Martens, W. ^{[1
]}

机构：

[1] Queensland Univ Technol, Inorgan Mat Res Program, Sch Phys & Chem Sci, Brisbane, Qld 4001, Australia

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2006年 / 86卷 / 01期

关键词：

hexacyanoferrate; hydrotalcite; pyroaurite; takovite; thermal analysis;

D O I：

10.1007/s10973-005-6933-z

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal decompositions of hydrotalcites with hexacyanoferrate(II) and hexacyanoferrate(III) in the interlayer have been studied using thermogravimetry combined with mass spectrometry. X-ray diffraction shows the hydrotalcites have a d(003) spacing of 11.1 and 10.9 angstrom which compares with a d-spacing of 7.9 and 7.98 angstrom for the hydrotalcite with carbonate or sulphate in the interlayer. XRD was also used to determine the products of the thermal decomposition. For the hydrotalcite decomposition the products were MgO, Fe2O3 and a spinel MgAl2O4. Dehydration and dehydroxylation take place in three steps each and the loss of cyanide ions in two steps.

引用

页码：205 / 209

页数：5

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