Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomography
An X-ray computed nano-tomography (nano-CT) system has been established at the BL33XU beamline of SPring-8. The optical system consists of pseudo-Köhler illumination with a sector condenser zone plate, an apodization Fresnel zone plate as the objective lens, and a Zernike phase plate. The imaging de...
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| Format: | Article |
| Language: | English |
| Published: |
International Union of Crystallography
2022-09-01
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| Series: | Journal of Synchrotron Radiation |
| Subjects: | |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S1600577522007949 |
| _version_ | 1811262212993449984 |
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| author | Satoshi Yamaguchi Satoru Kato Wataru Yoshimune Daigo Setoyama Akihiko Kato Yasutaka Nagai Takahisa Suzuki Akihisa Takeuchi Kentaro Uesugi |
| author_facet | Satoshi Yamaguchi Satoru Kato Wataru Yoshimune Daigo Setoyama Akihiko Kato Yasutaka Nagai Takahisa Suzuki Akihisa Takeuchi Kentaro Uesugi |
| author_sort | Satoshi Yamaguchi |
| collection | DOAJ |
| description | An X-ray computed nano-tomography (nano-CT) system has been established at the BL33XU beamline of SPring-8. The optical system consists of pseudo-Köhler illumination with a sector condenser zone plate, an apodization Fresnel zone plate as the objective lens, and a Zernike phase plate. The imaging detector is a fiber-coupling type X-ray camera. The performance of the X-ray nano-CT system was confirmed by imaging an X-ray test chart. The system was subsequently applied to the observation of a microporous layer for polymer electrolyte fuel cells and a simulated microporous layer including liquid water. The nano-CT system, which can perform a computed tomography measurement in less than 4 min, allowed visualization of a spherical water droplet produced in the microporous layer. In the present study, the shape of water droplets in a nanoscale porous structure is investigated. |
| first_indexed | 2024-04-12T19:20:01Z |
| format | Article |
| id | doaj.art-0f90b2e3fb6f4b44b7a48c50fdbc9f40 |
| institution | Directory Open Access Journal |
| issn | 1600-5775 |
| language | English |
| last_indexed | 2024-04-12T19:20:01Z |
| publishDate | 2022-09-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Journal of Synchrotron Radiation |
| spelling | doaj.art-0f90b2e3fb6f4b44b7a48c50fdbc9f402022-12-22T03:19:36ZengInternational Union of CrystallographyJournal of Synchrotron Radiation1600-57752022-09-012951258126410.1107/S1600577522007949mo5256Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomographySatoshi Yamaguchi0Satoru Kato1Wataru Yoshimune2Daigo Setoyama3Akihiko Kato4Yasutaka Nagai5Takahisa Suzuki6Akihisa Takeuchi7Kentaro Uesugi8Toyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, JapanToyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, JapanToyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, JapanToyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, JapanToyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, JapanToyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, JapanToyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute-shi, Aichi 480-1192, JapanJapan Synchrotron Radiation Research Institute (JASRI)/SPring-8, 1-1-1 Koto, Sayo, Hyogo 679-5198, JapanJapan Synchrotron Radiation Research Institute (JASRI)/SPring-8, 1-1-1 Koto, Sayo, Hyogo 679-5198, JapanAn X-ray computed nano-tomography (nano-CT) system has been established at the BL33XU beamline of SPring-8. The optical system consists of pseudo-Köhler illumination with a sector condenser zone plate, an apodization Fresnel zone plate as the objective lens, and a Zernike phase plate. The imaging detector is a fiber-coupling type X-ray camera. The performance of the X-ray nano-CT system was confirmed by imaging an X-ray test chart. The system was subsequently applied to the observation of a microporous layer for polymer electrolyte fuel cells and a simulated microporous layer including liquid water. The nano-CT system, which can perform a computed tomography measurement in less than 4 min, allowed visualization of a spherical water droplet produced in the microporous layer. In the present study, the shape of water droplets in a nanoscale porous structure is investigated.http://scripts.iucr.org/cgi-bin/paper?S1600577522007949x-ray computed nano-tomographypolymer electrolyte fuel cellgas diffusion layermicroporous layerwater droplethydrophobic material |
| spellingShingle | Satoshi Yamaguchi Satoru Kato Wataru Yoshimune Daigo Setoyama Akihiko Kato Yasutaka Nagai Takahisa Suzuki Akihisa Takeuchi Kentaro Uesugi Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomography Journal of Synchrotron Radiation x-ray computed nano-tomography polymer electrolyte fuel cell gas diffusion layer microporous layer water droplet hydrophobic material |
| title | Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomography |
| title_full | Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomography |
| title_fullStr | Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomography |
| title_full_unstemmed | Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomography |
| title_short | Observation of water droplets in microporous layers for polymer electrolyte fuel cells by X-ray computed nano-tomography |
| title_sort | observation of water droplets in microporous layers for polymer electrolyte fuel cells by x ray computed nano tomography |
| topic | x-ray computed nano-tomography polymer electrolyte fuel cell gas diffusion layer microporous layer water droplet hydrophobic material |
| url | http://scripts.iucr.org/cgi-bin/paper?S1600577522007949 |
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