特集「X線を用いたその場観察技術の展開」
軟X線吸収分光による表面・界面分子過程のその場観察
キーワード:
soft-x-ray absorption spectroscopy,
molecular process,
in situ observation,
surface,
interface
2021 年 64 巻 5 号 p. 212-217
詳細
2021 年 64 巻 5 号 p. 212-217
Soft-x-ray absorption spectroscopy is a suitable approach to conduct in situ observation of molecular processes at surfaces and interfaces. The following three different approaches using soft-x-ray absorption spectroscopy and their application studies on molecular processes at catalytic surfaces and interfaces are introduced : (1) Wavelength-dispersed Auger-electron-yield soft-x-ray absorption for ammonia formation on Rh(111), (2) In situ fluorescence-yield soft-x-ray absorption for humidity dependent chemical changes of polymer electrolyte in a fuel cell and (3) Near-ambient-pressure Auger-electron-yield soft-x-ray absorption for ethylene epoxidation on Ag(111). Recent and future developments of in situ observation using soft-x-ray absorption spectroscopy are described as a powerful tool to unveil molecular processes.
