Solution decomposition of the layered double hydroxide (LDH) of Zn with Al

被引：56

作者：

Britto, Sylvia

Radha, A. V.

Ravishankar, N.

Kamath, P. Vishnu ^{[1
]}

机构：

[1] Bangalore Univ, Cent Coll, Dept Chem, Bangalore 560001, Karnataka, India

[2] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India

来源：

SOLID STATE SCIENCES | 2007年 / 9卷 / 3-4期

关键词：

layered double hydroxide; solution decomposition;

D O I：

10.1016/j.solidstatesciences.2007.01.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The layered double hydroxides (LDH) of Zn with Al containing intercalated CO32- and NO3- ions undergo solution decomposition to yield a highly crystalline oxide mixture comprising ZnO and ZnAl2O4 at temperatures as low as 150-180 degrees C under hydrothermal conditions. In contrast solid-state decomposition takes place at a much higher temperature (240-315 degrees C) in air. Solution decomposition is not only guided by the low octahedra crystal field stabilization energy of Zn2+ ions, a factor that also affects solid-state decomposition, but also by solubility considerations. The LDHs of Mg and Ni with Al do not undergo solution decomposition.

引用

收藏

页码：279 / 286

页数：8

相关论文

共 26 条

[1] Thermochemistry and aqueous solubilities of hydrotalcite-like solids [J].

Allada, RK ;

Navrotsky, A ;

Berbeco, HT ;

Casey, WH .

SCIENCE, 2002, 296 (5568) :721-723

[2] POLYTYPE DIVERSITY OF THE HYDROTALCITE-LIKE MINERALS .1. POSSIBLE POLYTYPES AND THEIR DIFFRACTION FEATURES [J].

BOOKIN, AS ;

DRITS, VA .

CLAYS AND CLAY MINERALS, 1993, 41 (05) :551-557

[3] HYDROTALCITE-TYPE ANIONIC CLAYS: PREPARATION, PROPERTIES AND APPLICATIONS [J].

Cavani, F. ;

Trifiro, F. ;

Vaccari, A. .

CATALYSIS TODAY, 1991, 11 (02) :173-301

[4] BASIC PROPERTIES OF MG1-X(2+)ALX(3+) LAYERED DOUBLE HYDROXIDES INTERCALATED BY CARBONATE, HYDROXIDE CHLORIDE AND SULFATE ANIONS [J].

CONSTANTINO, VRL ;

PINNAVAIA, TJ .

INORGANIC CHEMISTRY, 1995, 34 (04) :883-892

[5] Bio-nanocomposites based on layered double hydroxides [J].

Darder, M ;

López-Blanco, M ;

Aranda, P ;

Leroux, F ;

Ruiz-Hitzky, E .

CHEMISTRY OF MATERIALS, 2005, 17 (08) :1969-1977

[6] SYNTHESIS AND CHARACTERIZATION OF COBALT(II)-IRON(III) HYDROXIDE CARBONATE, A LAYERED DOUBLE HYDROXIDE BELONGING TO THE PYROAURITE GROUP [J].

HANSEN, HCB ;

KOCH, CB ;

TAYLOR, RM .

JOURNAL OF SOLID STATE CHEMISTRY, 1994, 113 (01) :46-53

[7] DECARBONATION BEHAVIOR OF MG-AL-CO-3 HYDROTALCITE-LIKE COMPOUNDS DURING HEAT-TREATMENT [J].

HIBINO, T ;

YAMSHITA, Y ;

KOSUGE, K ;

TSUNASHIMA, A .

CLAYS AND CLAY MINERALS, 1995, 43 (04) :427-432

[8] Hydrotalcite-like minerals (M2Al(OH)6(CO3)0.5.XH2O, where M = Mg, Zn, Co, Ni) in the environment:: synthesis, characterization and thermodynamic stability [J].

Johnson, CA ;

Glasser, FP .

CLAYS AND CLAY MINERALS, 2003, 51 (01) :1-8

[9] STABILIZED ALPHA-NI(OH)2 AS ELECTRODE MATERIAL FOR ALKALINE SECONDARY CELLS [J].

KAMATH, PV ;

DIXIT, M ;

INDIRA, L ;

SHUKLA, AK ;

KUMAR, VG ;

MUNICHANDRAIAH, N .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (11) :2956-2959

[10] The effects of synthesis pH and hydrothermal treatment on the formation of zinc aluminum hydrotalcites [J].

Kloprogge, JT ;

Hickey, L ;

Frost, RL .

JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (11) :4047-4057