Cyanate intercalation in nickel hydroxide

被引：81
作者：
Mavis, Bora
Akinc, Mufit
机构：
[1] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
[2] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA
来源：
CHEMISTRY OF MATERIALS | 2006年 / 18卷 / 22期
关键词：
D O I：
10.1021/cm0528835
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：
alpha-Ni(OH)(2) and Ni-Al layer double hydroxides (LDHs) precipitated by urea were investigated with FTIR and XPS. Possible modes of cyanate (CNO-) coordination during the nucleation and growth of precipitates is discussed. In the early stages, cyanate ion in R-Ni(OH)(2) is found mainly to be N-bonded to Ni2+ ions in the layers, whereas later in the growth stages, it is bonded through oxygen. In LDHs cyanate remains N-bonded. These changes in the coordinations modes are related to the decreasing supersaturation levels during digestion. XPS results support the FTIR results.
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收藏
页码：5317 / 5325
页数：9
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