Journal of Inorganic Materials ›› 2015, Vol. 30 ›› Issue (12): 1233-1242.DOI: 10.15541/jim20150244

• Orginal Article •     Next Articles

Research Progress in Improvement of Oxygen Permeation Properties for Dual-phase Mixed Conducting Membranes

CHEN Ting1, 2, JIANG Wan2, 3, JIANG Wei-Hui1, 2, LIU Jian-Min2, ZHANG Xiao-Jun1, XIE Zhi-Xiang1   

  1. (1. School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333001, China; 2. National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen 333001, China; 3. College of Materials Science and Engineering, Donghua Unirersity, Shanghai 201620, China)
  • Received:2015-05-21 Revised:2015-07-05 Published:2015-12-20 Online:2015-11-24
  • About author:CHEN Ting. E-mail: chenting@jci.edu.cn
  • Supported by:
    National Natural Science Foundation of China (51402135);Projects of Jiangxi Provincial Department of Science and Technology (20142BAB216006);Youth Science Foundation of Jiangxi Provincial Department of Education (GJJ13621);Project of Jindezhen Science and Technologg Bureau (701301-323)

Abstract:

Dual-phase mixed conducting membrane can transport oxygen ions and electrons simultaneously at high temperature. Due to its high stability, low thermal expansion coefficient, high mechanical strength, and tunable component, it shows great potential in application of partial oxidation of methane to syngas (POM). However, how to improve its oxygen permeation flux is a key problem needing to be solved. In this review, the controlled step of the permeation process was analyzed based on the permeation mechanization. The improvements were presented, including utilized mixed conductor as electron conducting phase, reduced electronic threshold and decreased the grain size of the two phases. Meanwhile, fabricating asymmetric membrane, tube membrane and hollow fiber membrane were also efficient ways to reduce the thickness and to increase the surface area of the membrane, resulting in much increased permeation flux. Finally, some key problems to be solved in the future were also outlined.

Key words: mixed conductor, oxygen separation, ceramic membrane, dual-phase, review

CLC Number: