Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Nobuyuki Kamiya"'
Autor:
Nobuyuki, Kamiya
Publikováno v:
史苑. 70(2):64-69
Publikováno v:
Electrochimica Acta. 54:455-460
To understand the degradation of the Pt/C cathode for use in polymer electrolyte fuel cells, the solubility and the dissolution mechanism of platinum in acidic media was very important fundamentally. In this study, the platinum solubility has been de
Autor:
Shigenori Mitsushima, Mika Eguchi, Nobuyuki Kamiya, Norihiro Kon, Yasuyuki Tsutsumi, Ken-ichiro Ota, Yan Liu, Naoya Ogawa
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 128:721-726
The electro-oxidation of formic acid, 2-propanol and methanol on Pd black, Pd/C, Pt-Ru/C and Pt/C has been investigated to clear the reaction mechanism. It was suggested that the formic acid is dehydrogenated on Pd surface and the hydrogen is occlude
Publikováno v:
ECS Transactions. 3:195-204
In order to reduce the overpotential of the oxygen reduction reaction (ORR) for molten carbonate fuel cell, the effect of the La addition, which reduces NiO solubility by its basicity, has been investigated in Li/Na eutectic carbonate with a gold rin
Publikováno v:
Electrochimica Acta. 52:5781-5788
DME has been considered to be a new alternative fuel for direct fuel cells. However, there is little knowledge about the electro-oxidation mechanism of the DME oxidation reaction (DOR). It is very important to know the intermediate adsorption species
Autor:
Ken-ichiro Ota, Shotaro Doi, Nobuyuki Kamiya, Yan Liu, Shigenori Mitsushima, Akimitsu Ishihara
Publikováno v:
Materials Science Forum. :1379-1384
Zirconium based compounds (ZrO x N y ) have been investigated as a new cathode of polymer electrolyte fuel cells without platinum. The ZrO x N y film were prepared by the radio frequency magnetron sputtering method under Ar + O 2 + N 2 atmosphere wit
Publikováno v:
Electrochimica Acta. 52:2492-2497
A non-platinum cathode electrocatalyst must have the stability and catalytic activity for the oxygen reduction reaction (ORR) in order to be used in polymer electrolyte fuel cells (PEFCs). Titanium oxide catalysts as the non-platinum catalyst were pr
Publikováno v:
Electrochemistry. 75:155-158
Platinum depositions have been observed in the electrolyte membrane of polymer electrolyte fuel cells (PEFCs) as in other types of fuel cells; PEFCs, MCFCs. The platinum solubility in the membrane must be a key issue to improve and guarantee the dura
Autor:
Naomi, Seki, Yuko, Iwashita, Ryoko, Moto, Nobuyuki, Kamiya, Masayuki, Kurita, Narumi, Tahara, Michiya, Hasegawa, Takayuki, Shinkai, Yukinao, Hayashi, Kenji, Sadamasu, Akemi, Kai, Yukiko, Nakajima, Hirotoshi, Watase, Takashi, Ueda, Hideo, Maeda, Kazushi, Kobayashi, Yasue, Ishizaki, Kyoko, Hiromatsu
Publikováno v:
[Nihon koshu eisei zasshi] Japanese journal of public health. 62(5)
An outbreak of autochthonous dengue fever was reported in August 2014, with cases suspected mainly from Yoyogi Park in Tokyo. This is the first epidemic of dengue fever in Japan since 1945.From August to October 2014, the following measures were take
Publikováno v:
ECS Transactions. 3:625-631
Using the rotating ring-disk electrode, Pt consumption has been investigated to clarify the dissolution mechanisms under potential cycling which was the symmetric and asymmetric potential wave. The charge of Pt oxidation was always larger than that o