特集： 光電子分光の新展開
雰囲気制御型硬X線光電子分光による固体燃料電池電極のその場観察
2016 年 37 巻 1 号 p. 14-18
詳細
2016 年 37 巻 1 号 p. 14-18
We have constructed a near ambient pressure X-ray photoelectron spectroscopy instrument that use with hard X-ray radiation at the BL36XU of SPring-8 and successfully achieved in situ hard X-ray photoelectron spectroscopic measurements of catalytic electrodes of a polymer electrolyte fuel cell under working conditions. The oxidized Pt peaks were observed in the Pt 3d5/2 level of Pt nanoparticles in the cathode, and the peaks clearly depended on the applied voltage between the anode and cathode. This instrument will enable us to observe various fuel cell electrodes during operation in the future, promoting the development of fuel cell electrodes and catalyst materials.
