Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Atsushi Kaimai"'
Autor:
Toshiyuki Hashida, Junichiro Mizusaki, Koji Amezawa, Keiji Yashiro, Kazuhisa Sato, Tadashi Sakamoto, Tatsuya Kawada, Atsushi Kaimai
Publikováno v:
ECS Transactions. 35:225-229
Deformation and mechanical damage measurement techniques were developed in order to investigate the degradation process of SOFC cell/stack and module under SOFC operation. In this study, the deformation and mechanical damage test was applied to simul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7549823384c676be1d9a84cd4e5987a
https://doi.org/10.1149/1.3569997
https://doi.org/10.1149/1.3569997
Autor:
Atsushi Unemoto, Koji Amezawa, Naoto Kitamura, Tatsuya Kawada, Hiroshige Matsumoto, Kazuhisa Sato, Keiji Yashiro, Junichiro Mizusaki, Atsushi Kaimai
Publikováno v:
Solid State Ionics. 181:868-873
The electrical conductivity of SrZr 0.99 Fe 0.01 O 3 − δ was evaluated by a four-probe ac technique. The measurements were conducted in hydrogen and in oxygen containing atmospheres at 823 ≤ T / K ≤ 1273. It was found from the X-ray absorption
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9e5c45c91d02300d956e26c3854ad5e
https://doi.org/10.1016/j.ssi.2010.05.002
https://doi.org/10.1016/j.ssi.2010.05.002
Autor:
Hiroshige Matsumoto, Kazuhisa Sato, Tatsuya Kawada, Koji Amezawa, Keiji Yashiro, Junichiro Mizusaki, Atsushi Kaimai, Atsushi Unemoto
Publikováno v:
Solid State Ionics. 178:1663-1667
A novel concept for hydrogen permeable membrane proposed here is the use of oxide composites consisting of proton and electron conducting oxides. Composites with the overall composition of (1 − y )(SrZrO 3 ) − y (SrFeO 3 ) were chosen as a model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a06dc2d03fc3e0fe8f061bb54939ba9
https://doi.org/10.1016/j.ssi.2007.11.001
https://doi.org/10.1016/j.ssi.2007.11.001
Autor:
Kazuhisa Sato, Yoshinori Shirasaki, Takanori Otake, Isamu Yasuda, Tatsuya Kawada, Atsushi Kaimai, Tatsuya Tsuneki, Atsushi Unemoto, Keiji Yashiro, Junichiro Mizusaki
Publikováno v:
International Journal of Hydrogen Energy. 32:4023-4029
Hydrogen permeation measurements were carried out to investigate how a co-existing gas with hydrogen affects the hydrogen permeability of a silver 23 wt%–palladium alloy of 20 μ m in thickness. The hydrogen flux was reduced by the co-introduction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72b63fb2d5281e6f5b28ae2c0af95c1d
https://doi.org/10.1016/j.ijhydene.2007.04.030
https://doi.org/10.1016/j.ijhydene.2007.04.030
Autor:
Tatsuya Tsuneki, Yoshinori Shirasaki, Junichiro Mizusaki, Isamu Yasuda, Kazuhisa Sato, Tatsuya Kawada, Atsushi Kaimai, Keiji Yashiro, Atsushi Unemoto, Takanori Otake
Publikováno v:
International Journal of Hydrogen Energy. 32:2881-2887
Hydrogen permeation measurements were carried out by using an Ag 23 wt%-Pd alloy membrane of 20 μ m thickness at temperatures from 773 to 873 K. Contrary to some reported results, hydrogen permeation flux was not affected by the co-existence of H 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7705f7df1af4169f102d8fb5f639a0ee
https://doi.org/10.1016/j.ijhydene.2007.03.037
https://doi.org/10.1016/j.ijhydene.2007.03.037
Autor:
Atsushi Kaimai, Hiroo Yugami, Junji Suzuki, Maya Sase, Tatsuya Kawada, Takanori Otake, Keiji Yashiro, Junichiro Mizusaki
Publikováno v:
Solid State Ionics. 177:1961-1964
Dense La 0.6 Sr 0.4 CoO 3− δ film electrodes were deposited by pulsed laser deposition (PLD) on Ce 0.9 Gd 0.1 O 1.95 electrolytes. The grain size of one film was 300–500 nm, and the other was 30–50 nm. DC polarization and AC impedance measurem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60995c63de3fe93bc579f52df24ff7db
https://doi.org/10.1016/j.ssi.2006.01.018
https://doi.org/10.1016/j.ssi.2006.01.018
Autor:
Keiji Yashiro, Junichiro Mizusaki, Atsushi Kaimai, Takanori Otake, Tatsuya Kawada, Fumimasa Horikiri, Li Qun Han
Publikováno v:
Solid State Ionics. 177:2555-2559
The electrical conductivity of polycrystalline Sr(Ti 0.999 Nb 0.001 )O 3 was investigated. The conductivity was smaller by 1–2 order than that of the single crystal. The conductivity increased with temperature with the activation energy of 0.61 eV.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6204934a82bbe4c2fc9a2259b5235f2c
https://doi.org/10.1016/j.ssi.2006.03.023
https://doi.org/10.1016/j.ssi.2006.03.023
Autor:
Takanori Otake, Takaaki Sakai, Tatsuya Kawada, Keiji Yashiro, Masateru Nishioka, Junichiro Mizusaki, Atsushi Kaimai
Publikováno v:
Solid State Ionics. 177:1601-1605
Ion emission characteristics from a fluoride ionic conductor were investigated using CaF2 single crystals. The emission of F− ions was confirmed by using a quadrupole mass spectrometer, when a positive electric field was applied to the emission sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be107031ca0526f64a95044c32a8332d
https://doi.org/10.1016/j.ssi.2006.05.014
https://doi.org/10.1016/j.ssi.2006.05.014
Autor:
Takaaki Sakai, Yukio Fujiwara, Tatsuya Kawada, Atsushi Kaimai, Keiji Yashiro, Junichiro Mizusaki
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 24:1818-1822
Emission of oxygen negative ions O− from a bare surface of yttria-stabilized zirconia (YSZ) was studied at 925°C with a quadrupole mass spectrometer capable of detecting negative ions. The use of the mass spectrometer allowed one to identify O−
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f043ec1abbed1bf052fa308cc633f8c
https://doi.org/10.1116/1.2232541
https://doi.org/10.1116/1.2232541
Autor:
Tetsuo Shimura, Tatsuya Kawada, Atsushi Kaimai, Keiji Yashiro, Junichiro Mizusaki, Hiroyasu Iwahara, Hiroshige Matsumoto, Tohru Higuchi
Publikováno v:
Journal of Alloys and Compounds. :456-462
Two methods of hydrogen separation using proton-conducting perovskites, electrochemical hydrogen pumping with proton-conducting electrolytes and hydrogen sieving through protonic–electronic mixed conductors, are stated. In the former case, high tem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b6ab418e8015c64b99eb320e646b1d9
https://doi.org/10.1016/j.jallcom.2004.12.093
https://doi.org/10.1016/j.jallcom.2004.12.093