Journal of Inorganic Materials ›› 2015, Vol. 30 ›› Issue (10): 1043-1048.DOI: 10.15541/jim20150132

• Orginal Article • Previous Articles     Next Articles

Optimization Rule of Anode Materials for Solid Oxide Fuel Cells

CHANG Xi-Wang1, CHEN Ning2, WANG Li-Jun1, BIAN Liu-Zhen1, LI Fu-Shen2, CHOU Kuo-Chih1   

  1. (1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;     2. Department of Inorganic Nonmetallic Materials, University of Science and Technology Beijing, Beijing 100083, China)
  • Received:2015-03-17 Revised:2015-05-19 Published:2015-10-20 Online:2015-09-30
  • About author:CHANG Xi-Wang. E-mail: changxiwang2006@126.com

Abstract:

Based on the first principle total energy calculation method, the structural stability, electronic performance as well as mechanical properties of the 3rd-6th period metals and their oxides, potential to be used as anode material for solid oxide fuel cells, were studied. Considering anode working condition (high temperature and reduction atmosphere), transformation of anode structure and its performance were analyzed, and the tendencies of bulk modulus and band gap of metal/oxide were obtained. The results indicated that the metal/oxides stabilized in middle area of the formation tendency diagram would be easy to take part in oxidation/reduction reactions, and therefore suitable for anode working environment. The element which was close to metal region could introduce electronic conduction and improve the catalytic performance, while the ones near the oxides region could enhance the anode stability. These results may benefit for selection of anode materials according to various anode working conditions.

Key words: solid oxide fuel cell anode, first principle, formation tendency diagram, changing laws

CLC Number: