Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Maria Ohki"'
Autor:
Yuki Orikasa, Aika Takezawa, Kazuki Amemiya, Yoichiro Tsuji, Takahiko Asaoka, Maria Ohki, Oki Sekizawa, Kiyofumi Nitta
Publikováno v:
ECS Transactions. 109:109-116
Cerium species are added to membrane electrode assemblies (MEAs) of polymer electrolyte fuel cells as radical quenchers to suppress the degradation caused by radical species derived from the reaction between impurity and hydrogen peroxide formed duri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27b8248a262fcd5f4a1fe90a4f1fb257
https://doi.org/10.1149/10909.0109ecst
https://doi.org/10.1149/10909.0109ecst
Autor:
Toshihiro Kaneko, Junpei Ooyama, Maria Ohki, Hiroyuki Kanesaka, Yuta Yoshimoto, Ikuya Kinefuchi
Publikováno v:
International Journal of Heat and Mass Transfer. 200:123491
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd1fda3c4254a9e8360f45d37dfe3165
https://doi.org/10.1016/j.ijheatmasstransfer.2022.123491
https://doi.org/10.1016/j.ijheatmasstransfer.2022.123491
Autor:
Aika Takezawa, Yuki Orikasa, Yoichiro Tsuji, Takahiko Asaoka, Maria Ohki, Oki Sekizawa, Kiyofumi Nitta
Publikováno v:
ECS Meeting Abstracts. :2375-2375
Hydroxyl and hydroperoxyl radicals produced by reacting impurities with hydrogen peroxide is one of the degradation factors of polymer electrolyte [1]. A method to suppress this degradation is the addition of cerium into the polymer electrolyte membr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa8107311d9b4f89d02463ec878bebc1
https://doi.org/10.1149/ma2022-02642375mtgabs
https://doi.org/10.1149/ma2022-02642375mtgabs
Autor:
Jun-ichi Suzuki, Yukihiko Kawamura, Kazuki Ohishi, Mitsuhiro Shibayama, Kosuke Hiroi, Shin-ichi Takata, Yukinobu Kawakita, Toshiya Otomo, Hideto Imai, Maria Ohki, Takahiko Asaoka, Yoichiro Tsuji, Kazuki Amemiya
Publikováno v:
ECS Meeting Abstracts. :1397-1397
In order to improve the reaction efficiency of fuel cells, the structure of carbon and ionomer affecting electronic and proton conduction and the distribution of voids affecting oxygen diffusion and drainage have been studied to find the guideline fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38a2c26acf42d465d56ab055ec77be9f
https://doi.org/10.1149/ma2022-02391397mtgabs
https://doi.org/10.1149/ma2022-02391397mtgabs
Autor:
Yuki Kameya, Takashi Sasabe, Seiho Sugawara, Toshihiko Yoshida, Maria Ohki, Shuichiro Hirai, Norio Iriguchi, Suguru Uemura, Kouji Yokoyama, Hidekazu Sugimori
Publikováno v:
ECS Transactions. 80:819-827
The catalyst layer (CL) of polymer electrolyte fuel cell (PEFC) comprises catalyst particles, catalyst support (e.g., carbon particles), and proton-conductive ionomers. The CL plays a critical role in PEFC operation, and also the production process o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4edafd4fd3e64563fc86da92deeeb917
https://doi.org/10.1149/08008.0819ecst
https://doi.org/10.1149/08008.0819ecst
Publikováno v:
The Proceedings of Mechanical Engineering Congress, Japan. 2021:J065-03
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cbdf158a43e0020c707b4e4c20731e8
https://doi.org/10.1299/jsmemecj.2021.j065-03
https://doi.org/10.1299/jsmemecj.2021.j065-03
Autor:
Yuki Kameya, Norio Iriguchi, Maria Ohki, Kouji Yokoyama, Seiho Sugawara, Hidekazu Sugimori, Suguru Uemura, Takashi Sasabe, Toshihiko Yoshida, Shuichiro Hirai
Publikováno v:
ECS Meeting Abstracts. :1554-1554
The catalyst layer (CL) of polymer electrolyte fuel cell (PEFC) comprises catalyst particles, catalyst support (e.g., carbon particles), and proton-conductive ionomers. The CL plays a critical role in PEFC operation, and also the production process o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc1e70c75bfaa4ff63920bb06a2d4089
https://doi.org/10.1149/ma2017-02/35/1554
https://doi.org/10.1149/ma2017-02/35/1554
Autor:
Morio Asaoka, Maria Ohki
Publikováno v:
ChemInform. 41
A widely applicable procedure for the preparation of ketones from carboxylic acids via sodium salts with R(PrNH)Mg is described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d95b702631bfae4e14808d9daf5ea880
https://doi.org/10.1002/chin.201001058
https://doi.org/10.1002/chin.201001058
Autor:
Maria Ohki, Morio Asaoka
Publikováno v:
Chemistry Letters. 38:856-857
A widely applicable procedure for the preparation of ketones from carboxylic acids via sodium salts with R(PrNH)Mg is described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9426d11bd3279d0ca1c16392cfbcfce4
https://doi.org/10.1246/cl.2009.856
https://doi.org/10.1246/cl.2009.856