Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Yoichiro TSUJI"'
Autor:
Yoichiro TSUJI, Koji AMEZAWA, Takayuki NAKAO, Toshiaki INA, Tatsuya KAWADA, Kentaro YAMAMOTO, Yoshiharu UCHIMOTO, Yuki ORIKASA
Publikováno v:
Electrochemistry, Vol 88, Iss 6, Pp 560-565 (2020)
The oxygen chemical potential is an essential indicator for the rate-limiting step of the oxygen reduction reaction in high-temperature electrochemical devices such as solid oxide fuel cells (SOFCs). However, standard electrochemical measurements can
Externí odkaz:
https://doaj.org/article/c134e27630a047d1bc230decf004840c
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
Publikováno v:
Applied Sciences, Vol 11, Iss 9, p 3851 (2021)
Synchrotron-based Compton scattering imaging with intense high-energy X-rays allows the visualization of light element substances in an electrochemical device under an operando condition. In this study, we apply this imaging technique to a water-cont
Externí odkaz:
https://doaj.org/article/39750d814477450f941d31a5913372f2
Autor:
Hisanori Mashiko, Kosuke Nakajima, Koshikawa Hiroyuki, Hayashi Takao, Yoichiro Tsuji, Hideaki Murase, Seigo Shiraishi
Publikováno v:
ACS Catalysis. 10:1886-1893
We used a liquid phase reaction to synthesize a nickel (Ni) and iron (Fe)-containing layered double hydroxide (NiFe-LDH), having a lateral size less than 10 nm. A chelating agent introduced into th...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43dc54577eafb4950c494d59343de863
https://doi.org/10.1021/acscatal.9b04505
https://doi.org/10.1021/acscatal.9b04505
Autor:
Yuichi Mikami, Yuji Okuyama, Tomohiro Kuroha, Naoki Matsunaga, Mizuki Shudo, Yoshiki Niina, Yoichiro Tsuji, Kosuke Yamauchi, Go Sakai
Publikováno v:
International Journal of Hydrogen Energy. 45:3123-3131
We investigated the influence of Ni on protonic ceramic fuel cells based on indium-doped barium zirconate. A tubular fuel cell was fabricated and evaluated with BaZr0.8In0.2O3−δ as an electrolyte. The maximum power density was 0.143 W cm−2 and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::169b16825fcdbe798d0328fef7b2b67d
https://doi.org/10.1016/j.ijhydene.2019.11.128
https://doi.org/10.1016/j.ijhydene.2019.11.128
Autor:
Weijie Cao, Tomoki Uchiyama, Kentaro Yamamoto, Toshiyuki Matsunaga, Toshiharu Teranishi, Ryota Sato, Hideto Imai, Yoshiharu Sakurai, Yoichiro Tsuji, Yoshiharu Uchimoto
Publikováno v:
ECS Meeting Abstracts. :1543-1543
Polymer electrolyte fuel cells (PEFCs) have been developed for electric device applications such as fuel cell vehicles (FCV). PEFC cathode catalyst requires an excess Pt due to the degradation of oxygen reduction reaction (ORR) activity. Many researc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef23bb025d60ced9d2c1e8ba070ae096
https://doi.org/10.1149/ma2022-02421543mtgabs
https://doi.org/10.1149/ma2022-02421543mtgabs
Autor:
Naruki Tsuji, Tetsuya Miyazawa, Takuma Kaneko, Yuki Orikasa, Yoichiro Tsuji, Yoshiharu Uchimoto, Hideto Imai, Yoshiharu Sakurai
Publikováno v:
ECS Meeting Abstracts. :1384-1384
Water management is important for stable operation of PEFCs (Polymer Electrolyte Fuel Cells), since the proton conductivity depends on water content and excessive water hinders electrochemical reactions. As the durability of PEFC has become a major i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f937031991ecfa38ed3187414001e531
https://doi.org/10.1149/ma2022-02391384mtgabs
https://doi.org/10.1149/ma2022-02391384mtgabs
Autor:
Albert Mufundirwa, Yoshiharu Uchimoto, Hideto Imai, Yoichiro Tsuji, Hiroyuki Iwamoto, Yoshiharu Sakurai
Publikováno v:
ECS Meeting Abstracts. :1417-1417
Anomalous small-angle X-ray scattering (ASAXS) is a technique capable of extracting element-specific structural information from multi-element materials, and is considered useful in the structure analysis of metal alloy catalyst particles for fuel ce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1d304dad855f2d92ed6d84d560329f2
https://doi.org/10.1149/ma2022-02391417mtgabs
https://doi.org/10.1149/ma2022-02391417mtgabs
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