Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Wataru Yoshimune"'
Publikováno v:
npj Materials Degradation, Vol 8, Iss 1, Pp 1-9 (2024)
Abstract The durability of polymer electrolyte fuel cells (PEFCs) in fuel cell electric vehicles is important for the shift from passenger cars to heavy-duty vehicles. The components of a PEFC, namely the proton exchange membrane (PEM), catalyst laye
Externí odkaz:
https://doaj.org/article/d61884a0bafc4d9690ba9a53d3ed4fa2
Publikováno v:
Advanced Energy & Sustainability Research, Vol 5, Iss 10, Pp n/a-n/a (2024)
Water management is important for addressing the challenges posed by next‐generation fuel cell electric vehicles. Although X‐ray imaging techniques are useful for probing the mechanism of water transport in the gas diffusion layer of polymer elec
Externí odkaz:
https://doaj.org/article/adfe983fc42e4fb29bfaed82da1f3887
Autor:
Akihiko Kato, Satoshi Yamaguchi, Wataru Yoshimune, Kazuhisa Isegawa, Masashi Maeda, Daisuke Hayashi, Takahisa Suzuki, Satoru Kato
Publikováno v:
Electrochemistry Communications, Vol 165, Iss , Pp 107772- (2024)
Preventing the accumulation of water in the gas diffusion layer (GDL) proves effective in enhancing the performance of polymer electrolyte fuel cells (PEFCs). To understand the water transport phenomena in GDLs and channels of PEFCs, cell hardware fo
Externí odkaz:
https://doaj.org/article/ff4cb04c25fa491e9871d35ec7383641
Autor:
Yuki Higuchi, Wataru Yoshimune, Satoru Kato, Shogo Hibi, Daigo Setoyama, Kazuhisa Isegawa, Yoshihiro Matsumoto, Hirotoshi Hayashida, Hiroshi Nozaki, Masashi Harada, Norihiro Fukaya, Takahisa Suzuki, Takenao Shinohara, Yasutaka Nagai
Publikováno v:
Communications Engineering, Vol 3, Iss 1, Pp 1-7 (2024)
Abstract The automotive industry aims to ensure the cold-start capability of polymer electrolyte fuel cells (PEFCs) for developing fuel cell electric vehicles that can be driven in cold climates. Water and ice behavior is a key factor in maintaining
Externí odkaz:
https://doaj.org/article/767774a75e084d24a98441639e299438
Autor:
Wataru Yoshimune, Juliana B. Falqueto, Adam H. Clark, Nur Sena Yüzbasi, Thomas Graule, Dominika Baster, Mario El Kazzi, Thomas J. Schmidt, Emiliana Fabbri
Publikováno v:
Small Structures, Vol 4, Iss 12, Pp n/a-n/a (2023)
Cobalt‐based oxides have attracted attention as active electrocatalysts for the oxygen evolution reaction (OER) in alkaline electrolytes. However, highly OER active catalysts at near‐neutral pHs are also desired for practical applications. Herein
Externí odkaz:
https://doaj.org/article/32b7b1b9e3d24ce7a37ea51ab0c9cd56
Autor:
Satoshi Yamaguchi, Satoru Kato, Wataru Yoshimune, Daigo Setoyama, Akihiko Kato, Yasutaka Nagai, Takahisa Suzuki, Akihisa Takeuchi, Kentaro Uesugi
Publikováno v:
Journal of Synchrotron Radiation, Vol 29, Iss 5, Pp 1258-1264 (2022)
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 object
Externí odkaz:
https://doaj.org/article/0f90b2e3fb6f4b44b7a48c50fdbc9f40
Publikováno v:
Chemical Engineering Journal Advances, Vol 14, Iss , Pp 100479- (2023)
Accurate measurement of the gas diffusivity in a gas diffusion layer (GDL) for polymer electrolyte fuel cells (PEFCs) is extremely important in order to improve the performance of PEFCs and design fuel cell stacks. In the present study, in order to i
Externí odkaz:
https://doaj.org/article/a6d94dfa2a3d42e6a9689b94d4c411dd
Autor:
Wataru Yoshimune
Publikováno v:
Results in Chemistry, Vol 5, Iss , Pp 100738- (2023)
Herein, we report the oxygen transport phenomenon in the cathode catalyst layer of polymer electrolyte fuel cells. The oxygen transport resistance in the catalyst layer depended on the hot-pressing temperature of the fabrication procedure, suggesting
Externí odkaz:
https://doaj.org/article/ddf2a98a453549a9ad768319ac43d2fd
Publikováno v:
ACS Omega, Vol 6, Iss 16, Pp 10866-10874 (2021)
Externí odkaz:
https://doaj.org/article/53b6402a836043f9840202689fa6f420
Autor:
Wataru Yoshimune, Masashi Harada
Publikováno v:
Electrochemistry Communications, Vol 130, Iss , Pp 107099- (2021)
Temperature is a key parameter for ionomer adsorption on carbon supports in catalyst inks for fuel cells, and thus it affects the properties of the ink. This study aimed to investigate the temperature-induced structural evolution and viscosity transi
Externí odkaz:
https://doaj.org/article/0c14b36aaf7d49828437c99811a2a0bb