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

页码：407 / 411

页数：5

共 12 条

[1] CHARACTERIZATION OF THE INTERLAYER WATER IN NIOBYL PHOSPHATE HYDRATES BY IR AND NMR SPECTROSCOPIES [J].

BRUQUE, S ;

MARTINEZLARA, M ;

MORENOREAL, L ;

JIMENEZLOPEZ, A ;

CASAL, B ;

RUIZHITZKY, E ;

SANZ, J .

INORGANIC CHEMISTRY, 1987, 26 (06) :847-850

[2]

CASCIANI FS, 1980, 2 INT C PHOSPH COMP, P175

[3]

CHERNORUKOV NG, 1978, RUSS J INORG CHEM, V23, P1627

[4]

CHERNORUKOV NG, 1981, IAN SSSR NEORG MATER, V17, P328

[5]

DEULIN GI, 1980, J APPL CHEM-USSR+, V53, P371

[6]

DEULIN GI, 1980, INORG MATER+, V16, P478

[7]

DEULIN GI, 1979, RUSS J INORG CHEM, V24, P1291

[8] PHOSPHATES OF NIOBIUM AND TANTALUM [J].

HAHN, RB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1951, 73 (11) :5091-5093

[9]

LONGO JM, 1966, ACTA CHEM SCAND, V20, P71

[10] RAMAN-SPECTRA OF NIOBIUM OXIDES [J].

MCCONNELL, AA ;

ANDERSON, JS ;

RAO, CNR .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1976, 32 (05) :1067-1076

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