A RAMAN SPECTRAL STUDY OF HYDRATED NIOBIUM PHOSPHATE (NBPO5) PHASES

被引：10
作者：
STRANFORD, GT
CONDRATE, RA
机构：
[1] Alfred Univ, Alfred, NY, USA, Alfred Univ, Alfred, NY, USA
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 1988年 / 76卷 / 02期
关键词：
CRYSTALS - Structure - ION EXCHANGERS - Materials - METALLIC COMPOUNDS - Heat Treatment - SPECTROSCOPY; RAMAN;
D O I：
10.1016/0022-4596(88)90235-6
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Raman spectra were measured for a hydrated NbPO//5 phase after heating at various temperatures. Analyses of the spectra suggest that hydrogen phosphate groups were present in the materials heated at the lower temperatures (25, 105, and 195 degree C), consistent with earlier infrared spectral studies. Interlamellar water could be detected in the samples that were unheated or heated in this investigation below 1000 degree C which form Nb-O bonds with Nb ions in the layers, replacing the van der Waal Nb-O bonds between layers.
引用
收藏
页码：407 / 411
页数：5
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