Transport properties of ZrV2O7-V2O5 composites with liquid-channel grain boundary structure

被引：15

作者：

Kul'bakin, I. V. ^{[1
]}

Fedorov, S. V. ^{[1
]}

Vorob'ev, A. V. ^{[1
]}

Belousov, V. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Baikov Inst Met & Mat Sci, Moscow 119991, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2013年 / 49卷 / 09期

基金：

俄罗斯基础研究基金会;

关键词：

composites; mixed conductivity; ion-transport membranes; oxygen permeability; liquid-channel grain boundary structures; OXYGEN PERMEATION; SEPARATION;

D O I：

10.1134/S1023193513090085

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Transport properties (conductivity, transport numbers of oxygen ions, oxygen permeability) are studied for new composites of ZrV2O7-25, 30, 35, 40 mol % of V2O5 with a liquid-channel grain boundary structure (LGBS) at 680-740A degrees C. It is shown that the composite of ZrV2O7-40 mol % of V2O5 with LGBS has high selective oxygen permeability of 1.1 x 10(-8) mol cm(-2) s(-1) (T = 740A degrees C, = 0.21 atm, = 0.003 atm, L = 2 mm) and can be used as an ion-transport membrane for separation of oxygen from air.

引用

页码：878 / 882

页数：5

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