特集： 放射光を用いた電池および燃料電池の研究
XAFSを用いた固体酸化物形燃料電池の電極反応解析
2016 年 37 巻 2 号 p. 84-89
詳細
2016 年 37 巻 2 号 p. 84-89
Solid oxide fuel cell (SOFC), which is one type of fuel cells having a potential of high energy conversion efficiency, has been commercialized, for instance since 2011 in Japan. For further wide-spread commercialization of SOFC, improvements of the cell performance are highly required. Since electrode performance often limits the cell performance, it is important to improve the electrode kinetics based on the knowledge of physical/chemical states of the electrodes. However, SOFC operates at high temperature under specific atmospheric condition. Thus it is not so easy to directly observe the states of the electrodes under operation. In this paper, our experimental trials of direct observation of SOFC electrodes by means of X-ray absorption fine structure (XAFS) are reviewed.
