PROTON CONDUCTION IN SOME ACID NIOBIUM PHOSPHATES

被引：7

作者：

CANTERO, M ^{[1
]}

REAL, LM ^{[1
]}

BRUQUE, S ^{[1
]}

LARA, MM ^{[1
]}

BARRADO, JRR ^{[1
]}

机构：

[1] UNIV MALAGA,FAC CIENCIAS,DEPT FIS APLICADA,E-29071 MALAGA,SPAIN

来源：

SOLID STATE IONICS | 1992年 / 51卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(92)90209-8

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：

Proton mobility in K0.5NbOPO4.0.2H3PO3.1.7H2O and in its pristine compound alpha-NbOPO4.nH2O(n<3) is studied by means of the impedance spectroscopy technique in the temperature range 300-413 K and in the frequency range 1 Hz to 12 MHz. The K0.5NbOPO4.0.2H3PO4.1.7H2O exhibits a greater conductivity at room temperature (1.5 X 10(-5) S cm-1) than alpha-NbOPO4.nH2O (n < 3) (10(-6) S cm-1) due to the presence of H3O+ in its interlayer space. This is confirmed by IR spectroscopy which shows a band centered at 1700 cm-1 assigned to deformation vibration of H3O+.

引用

页码：273 / 279

页数：7

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