2024-03-29T07:46:39Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00024862
2023-01-16T04:15:20Z
336:695:696
Operando 3D Visualization of Migration and Degradation of a Platinum Cathode Catalyst in a Polymer Electrolyte Fuel Cell
Hirosuke, Matsui
Nozomu, Ishiguro
Tomoya, Uruga
Oki, Sekizawa
Kotaro, Higashi
Naoyuki, Maejima
Mizuki, Tada
open access
This is the peer reviewed version of the following article: [ANGEWANDTE CHEMIE-INTERNATIONAL EDITION. v.56, n.32, 2017, p.9371-9375], which has been published in final form at [http://doi.org/10.1002/anie.201703940]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving."
The three-dimensional (3D) distribution and oxidation state of a Pt cathode catalyst in a practical membrane electrode assembly (MEA) were visualized in a practical polymer electrolyte fuel cell (PEFC) under fuel-cell operating conditions. Operando 3D computed-tomography imaging with X-ray absorption near edge structure (XANES) spectroscopy (CT-XANES) clearly revealed the heterogeneous migration and degradation of Pt cathode catalyst in an MEA during accelerated degradation test (ADT) of PEFC. The degradative Pt migration proceeded over the entire cathode catalyst layer and spread to MEA depth direction into the Nafion membrane.
Wiley
2017-08-01
eng
journal article
AM
http://hdl.handle.net/2237/27082
https://nagoya.repo.nii.ac.jp/records/24862
https://doi.org/10.1002/anie.201703940
1433-7851
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
56
32
9371
9375
https://nagoya.repo.nii.ac.jp/record/24862/files/supporting_information.pdf
application/pdf
2.4 MB
2018-08-01
https://nagoya.repo.nii.ac.jp/record/24862/files/manuscript.pdf
application/pdf
1.3 MB
2018-08-01