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- Title
Operando Soft X-ray Absorption Spectroscopic Study on a Solid Oxide Fuel Cell Cathode during Electrochemical Oxygen Reduction.
- Authors
Nakamura, Takashi; Oike, Ryo; Kimura, Yuta; Tamenori, Yusuke; Kawada, Tatsuya; Amezawa, Koji
- Abstract
An operando soft X-ray absorption spectroscopic technique, which enabled the analysis of the electronic structures of the electrode materials at elevated temperature in a controlled atmosphere and electrochemical polarization, was established and its availability was demonstrated by investigating the electronic structural changes of an La2NiO4+ δ dense-film electrode during an electrochemical oxygen reduction reaction. Clear O K-edge and Ni L-edge X-ray absorption spectra could be obtained below 773 K under an atmospheric pressure of 100 ppm O2/He, 0.1 % O2/He, and 1 % O2/He gas mixtures. Considerable spectral changes were observed in the O K-edge X-ray absorption spectra upon changing the P
- Subjects
SOFT X rays; X-ray absorption; FUEL cells; ELECTRODES; OXIDATION-reduction reaction
- Publication
ChemSusChem, 2017, Vol 10, Issue 9, p2008
- ISSN
1864-5631
- Publication type
Article
- DOI
10.1002/cssc.201700237