One-step formation and characterization of Zn(II)-Cr(III) layered double hydroxides, Zn2Cr(OH)6X (X = Cl, 1/2SO4)

被引：37
|
作者：
Boclair, JW
Braterman, PS [1 ]
机构：
[1] Univ N Texas, Dept Chem, Denton, TX 76203 USA
[2] Univ N Texas, Dept Mat Characterizat, Denton, TX 76203 USA
来源：
CHEMISTRY OF MATERIALS | 1998年 / 10卷 / 08期
关键词：
D O I：
10.1021/cm980298g
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Titration curves show that the layered double hydroxide Zn2Cr(OH)(6)Cl, unlike Zn2Fe(OH)(6)Cl (shown) or Zn2Al(OH)(6)Cl (not shown) forms directly from solution, without the intermediacy of "M-III(OH)(3)", when a mixture of metal chlorides is treated with base. Co(II), Ni(II), and Cu(II) behave similarly. Spectroscopic and titrimetric data show that Zn2Cr(OH)(6)Cl is formed initially from mixed solutions of various stoichiometries and suggest that the Zn(II) and Cr(III) ions may be locally ordered.
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页码：2050 / +
页数：4
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