Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Kohji, Nagashima"'
Autor:
Heidy Visbal, Takuya Omura, Kohji Nagashima, Takanori Itoh, Tsukuru Ohwaki, Hideto Imai, Toru Ishigaki, Ayaka Maeno, Katsuaki Suzuki, Hironori Kaji, Kazuyuki Hirao
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract We utilized nanoporous mayenite (12CaO·7Al2O3), a cost-effective material, in the hydride state (H−) to explore the possibility of its use for hydrogen storage and transportation. Hydrogen desorption occurs by a simple reaction of mayenit
Externí odkaz:
https://doaj.org/article/4c7ad8d673cf4bcda5c394e9f1a19926
Autor:
Toru Ishigaki, Kazuyuki Hirao, Takuya Omura, Heidy Visbal, Hideto Imai, Ayaka Maeno, Takanori Itoh, Katsuaki Suzuki, Hironori Kaji, Kohji Nagashima, Tsukuru Ohwaki
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
We utilized nanoporous mayenite (12CaO·7Al2O3), a cost-effective material, in the hydride state (H−) to explore the possibility of its use for hydrogen storage and transportation. Hydrogen desorption occurs by a simple reaction of mayenite with wa
Autor:
Kohji Nagashima, Hiroshi Kato, Kazuyuki Hirao, Takeyuki Kato, Jun Matsuoka, Masahiro Shimizu, Masaaki Sakakura, Yasuhiko Shimotsuma, Heidy Visbal, Kiyotaka Miura, Hiroki Itasaka, Masayuki Nishi
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
The Soret effect or thermodiffusion is the temperature-gradient driven diffusion in a multicomponent system. Two important conclusions have been obtained for the Soret effect in multicomponent silicate melts: first, the SiO2 component concentrates in
Autor:
Heidy, Visbal, Takuya, Omura, Kohji, Nagashima, Takanori, Itoh, Tsukuru, Ohwaki, Hideto, Imai, Toru, Ishigaki, Ayaka, Maeno, Katsuaki, Suzuki, Hironori, Kaji, Kazuyuki, Hirao
Publikováno v:
Scientific Reports
We utilized nanoporous mayenite (12CaO·7Al2O3), a cost-effective material, in the hydride state (H−) to explore the possibility of its use for hydrogen storage and transportation. Hydrogen desorption occurs by a simple reaction of mayenite with wa
Autor:
Masahiro Shimizu, Masaaki Sakakura, Yasuhiko Shimotsuma, Masayuki Nishi, Kazuyuki Hirao, Kiyotaka Miura, Kohji Nagashima, Hiroki Itasaka, Hiroshi Kato, Heidy Visbal, Daisuke Hanakawa
Publikováno v:
Journal of the Ceramic Society of Japan. 125:180-184
The mole fraction distributions of CaO and SiO2 under a temperature gradient in a CaSiO3 melt were calculated by molecular dynamics. The temperatures at the cold and hot ends of the gradient were 1800 and 2200 K, respectively, in the simulation. We u
Publikováno v:
Korean Journal of Chemical Engineering. 33:1255-1260
We have successfully generated hydrogen using aluminum foil instead of aluminum powder from the perspective of improving safety. We analyzed the surface states of three aluminum foils and correlated their surface properties with hydrogen generation c
Publikováno v:
International Journal of Applied Ceramic Technology. 13:265-268
Autor:
Masahiro, Shimizu, Jun, Matsuoka, Hiroshi, Kato, Takeyuki, Kato, Masayuki, Nishi, Heidy, Visbal, Kohji, Nagashima, Masaaki, Sakakura, Yasuhiko, Shimotsuma, Hiroki, Itasaka, Kazuyuki, Hirao, Kiyotaka, Miura
Publikováno v:
Scientific Reports
The Soret effect or thermodiffusion is the temperature-gradient driven diffusion in a multicomponent system. Two important conclusions have been obtained for the Soret effect in multicomponent silicate melts: first, the SiO2 component concentrates in
Autor:
Kazuyuki Hirao, Kohji Nagashima, Marco A. Condoretty, Seiji Tsuji, Hideki Kawasaki, Heidy Visbal, Luz Quispe, Hitomi Miki
Publikováno v:
Journal of the Ceramic Society of Japan. 123:38-42
Autor:
Kazuyuki Hirao, Shingo Kanehira, Heidy Visbal, Susumu Kanamori, Kohji Nagashima, Toshimi Fukui, Takashi Saeki
Publikováno v:
Journal of Asian Ceramic Societies. 1(3):296-303
Mechanism of aluminum powder corrosion in calcium hydroxide solutions was investigated via various analyses of residues after its hydrolysis reaction and pH change of the solutions to control the release of hydrogen gas. It was revealed that the reac