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

共 38 条

[1] THE CRYSTAL-CHEMISTRY AND PARAGENESIS OF HONESSITE AND HYDROHONESSITE - THE SULFATE ANALOGS OF REEVESITE [J].

BISH, DL ;

LIVINGSTONE, A .

MINERALOGICAL MAGAZINE, 1981, 44 (335) :339-343

[2] Intercalation of iron hexacyano complexes in Zn,Al-hydrotalcite [J].

Crespo, I ;

Barriga, C ;

Rives, V ;

Ulibarri, MA .

SOLID STATE IONICS, 1997, 101 :729-735

[3] An X-ray diffraction and absorption study of the phases formed upon calcination off Zn-Al-Fe hydrotalcites [J].

Crespo, I ;

Barriga, C ;

Ulibarri, MA ;

Gonzalez-Bandera, G ;

Malet, P ;

Rives, V .

CHEMISTRY OF MATERIALS, 2001, 13 (05) :1518-1527

[4] A study of structural memory effects in synthetic hydrotalcites using environmental SEM [J].

Erickson, KL ;

Bostrom, TE ;

Frost, RL .

MATERIALS LETTERS, 2005, 59 (2-3) :226-229

[5] Near-infrared spectroscopy of stitchtite, iowaite, desautelsite and arsenate exchanged takovite and hydrotalcite [J].

Frost, RL ;

Erickson, KL .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2005, 61 (1-2) :51-56

[6]

Frost RL, 2004, J THERM ANAL CALORIM, V78, P367, DOI 10.1023/B:JTAN.0000046103.00586.61

[7] Decomposition of the synthetic hydrotalcites mountkeithite and honessite - a high resolution thermogravimetric analysis and infrared emission spectroscopic study [J].

Frost, RL ;

Erickson, KL .

THERMOCHIMICA ACTA, 2004, 421 (1-2) :51-58

[8]

Frost RL, 2004, J THERM ANAL CALORIM, V76, P1025, DOI 10.1023/B:JTAN.0000032287.08535.b3

[9] Thermal decomposition of synthetic hydrotalcites reevesite and pyroaurite [J].

Frost, RL ;

Erickson, KL .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2004, 76 (01) :217-225

[10] Thermal decomposition of the natural hydrotalcites carrboydite and hydrohonessite [J].

Frost, RL ;

Weier, ML ;

Clissold, ME ;

Williams, PA ;

Kloprogge, JT .

THERMOCHIMICA ACTA, 2003, 407 (1-2) :1-9

← 1 2 3 4 →