Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Himeko Orui"'
Publikováno v:
Journal of Power Sources. 288:419-425
The electrical properties of nickel-zirconia cermets as the anode material for solid oxide fuel cells (SOFCs) were studied for Sc2O3–Al2O3-stabilized ZrO2 (SASZ), together with conventional Y2O3-stabilized ZrO2 (YSZ). The reduction behavior of the
Autor:
Takeshi Komatsu, Taguchi Hiroaki, Chiba Reiichi, Himeko Orui, Kimitaka Watanabe, Katsuya Hayashi
Publikováno v:
Journal of Power Sources. 241:768-775
We fabricated electrolyte supported single cells with three types of cathodes that consisted of a Ce0.1Gd0.1O1.95 (GDC) buffer layer, a LaNi0.6Fe0.4O3 (LNF) cathode and an active layer. The only difference between the three cathodes was that each had
Publikováno v:
ECS Transactions. 57:1331-1338
An emergency shutdown of an SOFC system gives rise to an increase of the anode-side partial pressure of oxygen (p(O2),a). This leads to electrolyte breakdown due to the anode strain caused by Ni-zirconia cermet reoxidation. We determined the open cir
Publikováno v:
Journal of Power Sources. 238:74-80
The long-term stability of anode cermets for solid oxide fuel cells (SOFC) was studied for the composites NiO/scandia stabilized zironia (ScSZ) and NiO/scandia-alumina stabilized zirconia (SASZ). Heat treatment at 800 °C over 600 h resulted in gradu
Publikováno v:
Solid State Ionics. 197:42-48
We prepared Ce 1-x Pr x O 2-δ and investigated its high temperature properties as a material for the composite active layer of a solid oxide fuel cell (SOFC) cathode. We found that increasing the Pr concentration increases the total conductivity and
Autor:
Masayuki Yokoo, Hajime Arai, Chiba Reiichi, Yoshiteru Yoshida, Takeshi Komatsu, Himeko Orui, Katsuya Hayashi
Publikováno v:
ECS Transactions. 35:2313-2319
We have been investigating an La (Ni, Fe)O3 as a cathode. The particle size changes were analyzed by SEM before and after durability test for 1,000 h, and 10,000h. We found that little change was observed between before and after the durability test
Publikováno v:
Solid State Ionics. 182:127-132
We prepared LaNi x Co y Fe 1 − x − y O 3 with 0.2 ≤ x ≤ 0.6 and 0.1 ≤ y ≤ 0.4 (LNCF) powder and investigated its characteristics as a cathode material for solid oxide fuel cells. To investigate the crystal structure of LNCF, we analyzed L
Autor:
Yoshiteru Yoshida, Hajime Arai, Takeshi Komatsu, Chiba Reiichi, Himeko Orui, Taguchi Hiroaki, Kimitaka Watanabe
Publikováno v:
Journal of Power Sources. 195:5601-5605
We investigated the effect of current loading on the degradation behavior of an anode-supported solid oxide fuel cell (SOFC). The cell consisted of LaNi 0.6 Fe 0.4 O 3 (LNF), alumina-doped scandia stabilized zirconia (SASZ), and a Ni-SASZ cermet as t
Publikováno v:
ECS Transactions. 26:333-340
To improve the performance of our standard cathode consisting of a La(Ni-Fe)O3-Ce(Gd)O2-d active layer and a La(Ni-Fe)O3 current collection layer, we replaced the Ce(Gd)O2-d in the active layer with Pr doped ceria (Ce(Pr)O2-d). We evaluated the catho
Autor:
Kazunori Sato, Katsuya Hayashi, Chiba Reiichi, Himeko Orui, Hajime Arai, Masayasu Arakawa, Masayuki Yokoo, Yoshiteru Yoshida, Kazuhiko Nozawa, Takeshi Komatsu
Publikováno v:
ECS Transactions. 16:115-122
This paper discusses on the Cr poisoning that occurs in solid oxide fuel cells with metallic alloy separators. The results of a series of experimental, including an analysis of cathodic overvoltage with loading time at a constant current density, obs