Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Yuji Kamitaka"'
Autor:
Hiroshi Itahara, Yasuhiro Takatani, Naoko Takahashi, Satoru Kosaka, Akihiro Nagoya, Masanori Inaba, Yuji Kamitaka, Yu Morimoto
Publikováno v:
Chemistry of Materials. 34:422-429
Autor:
Masanori Inaba, Yuji Kamitaka, Juntaro Seki, Yu Morimoto, Noritomo Suzuki, Yasuji Kimoto, Satoru Kosaka, Kensaku Kodama
Publikováno v:
Electrocatalysis. 12:188-198
Platinum thin films on non-precious stable support materials are a promising form as oxygen reduction reaction (ORR) catalyst in the face of the tradeoff issue between the activity and durability for conventional Pt-based nanoparticles. However, supp
Autor:
Masanori Inaba, Naoko Takahashi, Satoru Kosaka, Hiroshi Itahara, Yasuhiro Takatani, Yuji Kamitaka
Publikováno v:
Chemical Communications. 57:4279-4282
We have fabricated Pt-Ca nanoparticles with oxygen reduction reaction catalytic activity via a sodium vapor-induced synthesis method. Prior addition of NaCl to form a eutectic mixture of CaCl2 and NaCl facilitated the formation of intermetallic Pt2Ca
Autor:
Naoko Takahashi, Sebastian Proch, Satoru Kosaka, Shuhei Yoshino, Juntaro Seki, Yu Morimoto, Kensaku Kodama, Yuji Kamitaka
Publikováno v:
Electrocatalysis. 10:1-16
Methods of protecting Pt(-alloy) particles against dissolution during fuel cell operation have recently gathered attention. Titania as a promising Pt catalyst support has its own built-in protection mechanism, called strong metal-support interaction
Publikováno v:
Journal of Electroanalytical Chemistry. 886:115115
Fabricating uniform catalyst thin films on rotating disk electrodes (RDEs) is crucial for the accurate and reproducible evaluation of the oxygen reduction reaction (ORR) activity of high surface area catalysts via the thin film (TF)-RDE method. For t
Publikováno v:
Journal of Electroanalytical Chemistry. 871:114250
A quantitative analytical method for estimating the ionomer coverage on Pt surfaces in an electrode for polymer electrolyte membrane fuel cells (PEMFCs) was developed and applied to three sample electrodes with different catalyst supports: non-porous
Publikováno v:
Catalysts, Vol 8, Iss 7, p 258 (2018)
Catalysts
Volume 8
Issue 7
Catalysts
Volume 8
Issue 7
An electron-conducting mixed oxide, Co-Pt bronze was synthesized and examined as a candidate for a highly durable electrocatalyst for both the polymer electrolyte fuel cells and electrolyzers. The motivation of this study comes from the fact that thi
Publikováno v:
Catalysts
Volume 8
Issue 6
Catalysts, Vol 8, Iss 6, p 230 (2018)
Volume 8
Issue 6
Catalysts, Vol 8, Iss 6, p 230 (2018)
An MgO-templated mesoporous carbon, CNovel®
was employed as a catalyst support for the cathode of polymer electrolyte fuel cells (PEFCs) after modifying its dimensional, crystalline, surface and porous structures and the electrochemical oxyge
was employed as a catalyst support for the cathode of polymer electrolyte fuel cells (PEFCs) after modifying its dimensional, crystalline, surface and porous structures and the electrochemical oxyge
Publikováno v:
ECS Meeting Abstracts. :1592-1592
Platinum metal-based materials have been mostly used as the catalysts for polymer electrolyte fuel cells and extensively studied to improve their performance by alloying and shape-controlling. Although these advanced technologies are pursued mainly f
Autor:
Yuji Kamitaka, Akihiro Shinohara, Takahisa Suzuki, Haruhiko Yamada, Kensaku Kodama, Ryosuke Jinnouchi, Yu Morimoto
Publikováno v:
ECS Meeting Abstracts. :1806-1806
Since the inventions in 1980s of the basic structure, i.e. a layered structure of a perfluorosulfonic acid membrane and gas diffusion electrodes including Pt on carbon and an ionomer, significant advancement has been achieved and finally, commercial