Experimental study of oxygen diffusion and permeation through YBa2CU3O7-x membranes

被引：13

作者：

Yang, DL

Lu, HX

Song, HZ

Mo, J

Li, GX

Chen, CP

Guo, YQ

Hu, X ^{[1
]}

机构：

[1] Zhengzhou Univ, Dept Phys, Sch Phys Engn, Zhengzhou 450052, Peoples R China

[2] Zhengzhou Univ, Phys Mat Lab, Zhengzhou 450052, Peoples R China

[3] Zhengzhou Univ, Dept Chem, Zhengzhou 450052, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2004年 / 233卷 / 1-2期

关键词：

oxygen permeation membrane; oxygen diffusion; YBa2Cu3O7-x;

D O I：

10.1016/j.memsci.2003.12.011

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The oxygen in-diffusion, out-diffusion, and permeability of layered perovskite-type-like YBa2Cu3O7-x (YBCO) were investigated by thermogravimetry, oxygen static adsorption, and oxygen permeability experiment. The results show that the oxygen in-diffusion at higher oxygen partial pressure is very faster, while the oxygen out-diffusion at lower oxygen partial pressure is relatively slow due to the formation of surface barrier. Oxygen permeation rate increases with temperature and arrives at 3.36 x 10-(7) mol/s cm(2) at 900degreesC for a YBCO membrane with thickness 1.00 mm. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：45 / 50

页数：6

共 31 条

[1] Dense ceramic membranes for partial oxidation of methane to syngas [J].