4D visualization of a cathode catalyst layer in a polymer electrolyte fuel cell by 3D laminography-XAFS

Takahiro Saida; Oki Sekizawa; Nozomu Ishiguro; Masato Hoshino; Kentaro Uesugi; Tomoya Uruga; Shin Ichi Ohkoshi; Toshihiko Yokoyama; Mizuki Tada

doi:10.1002/anie.201204478

4D visualization of a cathode catalyst layer in a polymer electrolyte fuel cell by 3D laminography-XAFS

Takahiro Saida, Oki Sekizawa, Nozomu Ishiguro, Masato Hoshino, Kentaro Uesugi, Tomoya Uruga, Shin Ichi Ohkoshi, Toshihiko Yokoyama, Mizuki Tada

研究成果: Article › 査読

55 被引用数 (Scopus)

抄録

Four-dimensional visualization of Pt/C cathode catalyst layers in membrane electrode assemblies (MEAs) were successfully performed by a newly developed method, namely laminography-XAFS (X-ray absorption fine structure). The method not only enables imaging of the 3D distribution of Pt nanoparticle cathode catalysts, but also the chemical states of the Pt catalysts in fresh and degraded MEAs in a nondestructive manner.

本文言語	English
ページ（範囲）	10311-10314
ページ数	4
ジャーナル	Angewandte Chemie - International Edition
巻	51
号	41
DOI	https://doi.org/10.1002/anie.201204478
出版ステータス	Published - 2012 10月 8
外部発表	はい

ASJC Scopus subject areas

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化学 (全般)

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abstract = "Four-dimensional visualization of Pt/C cathode catalyst layers in membrane electrode assemblies (MEAs) were successfully performed by a newly developed method, namely laminography-XAFS (X-ray absorption fine structure). The method not only enables imaging of the 3D distribution of Pt nanoparticle cathode catalysts, but also the chemical states of the Pt catalysts in fresh and degraded MEAs in a nondestructive manner.",

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AU - Saida, Takahiro

AU - Sekizawa, Oki

AU - Ishiguro, Nozomu

AU - Hoshino, Masato

AU - Uesugi, Kentaro

AU - Uruga, Tomoya

AU - Ohkoshi, Shin Ichi

AU - Yokoyama, Toshihiko

AU - Tada, Mizuki

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AB - Four-dimensional visualization of Pt/C cathode catalyst layers in membrane electrode assemblies (MEAs) were successfully performed by a newly developed method, namely laminography-XAFS (X-ray absorption fine structure). The method not only enables imaging of the 3D distribution of Pt nanoparticle cathode catalysts, but also the chemical states of the Pt catalysts in fresh and degraded MEAs in a nondestructive manner.

KW - XANES

KW - catalyst degradation

KW - fuel cells

KW - imaging

KW - laminography

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4D visualization of a cathode catalyst layer in a polymer electrolyte fuel cell by 3D laminography-XAFS

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