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Hirofumi Sumi
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Performance of nickel–scandia-stabilized zirconia cermet anodes for SOFCs in 3% H2O–CH4
H Sumi, K Ukai, Y Mizutani, H Mori, CJ Wen, H Takahashi, O Yamamoto
Solid State Ionics 174 (1-4), 151-156, 2004
1462004
AC impedance characteristics for anode-supported microtubular solid oxide fuel cells
H Sumi, T Yamaguchi, K Hamamoto, T Suzuki, Y Fujishiro, T Matsui, ...
Electrochimica acta 67, 159-165, 2012
1182012
Effect of oxide on carbon deposition behavior of CH4 fuel on Ni/ScSZ cermet anode in high temperature SOFCs
K Ke, A Gunji, H Mori, S Tsuchida, H Takahashi, K Ukai, Y Mizutani, ...
Solid State Ionics 177 (5-6), 541-547, 2006
1122006
Degradation evaluation by distribution of relaxation times analysis for microtubular solid oxide fuel cells
H Sumi, H Shimada, Y Yamaguchi, T Yamaguchi, Y Fujishiro
Electrochimica Acta 339, 135913, 2020
1062020
From rare earth doped zirconia to 1 kW solid oxide fuel cell system
Y Mizutani, K Hisada, K Ukai, H Sumi, M Yokoyama, Y Nakamura, ...
Journal of alloys and compounds 408, 518-524, 2006
912006
High performance of La0. 6Sr0. 4Co0. 2Fe0. 8O3–Ce0. 9Gd0. 1O1. 95 nanoparticulate cathode for intermediate temperature microtubular solid oxide fuel cells
H Sumi, T Yamaguchi, K Hamamoto, T Suzuki, Y Fujishiro
Journal of power sources 226, 354-358, 2013
902013
Nanocomposite electrodes for high current density over 3 A cm−2 in solid oxide electrolysis cells
H Shimada, T Yamaguchi, H Kishimoto, H Sumi, Y Yamaguchi, K Nomura, ...
Nature communications 10 (1), 5432, 2019
862019
Correlation between microstructural and electrochemical characteristics during redox cycles for Ni–YSZ anode of SOFCs
H Sumi, R Kishida, JY Kim, H Muroyama, T Matsui, K Eguchi
Journal of The Electrochemical Society 157 (12), B1747, 2010
822010
Comparison between internal steam and CO2 reforming of methane for Ni-YSZ and Ni-ScSZ SOFC anodes
H Sumi, YH Lee, H Muroyama, T Matsui, K Eguchi
Journal of The Electrochemical Society 157 (8), B1118, 2010
802010
Effect of carbon deposition by carbon monoxide disproportionation on electrochemical characteristics at low temperature operation for solid oxide fuel cells
H Sumi, YH Lee, H Muroyama, T Matsui, M Kamijo, S Mimuro, ...
Journal of Power Sources 196 (10), 4451-4457, 2011
732011
Challenge for lowering concentration polarization in solid oxide fuel cells
H Shimada, T Suzuki, T Yamaguchi, H Sumi, K Hamamoto, Y Fujishiro
Journal of Power Sources 302, 53-60, 2016
712016
Transport and magnetic properties of the Heusler-type system
Y Nishino, H Sumi, U Mizutani
Physical Review B 71 (9), 094425, 2005
582005
Impact of direct butane microtubular solid oxide fuel cells
H Sumi, T Yamaguchi, K Hamamoto, T Suzuki, Y Fujishiro
Journal of Power Sources 220, 74-78, 2012
502012
High power density cell using nanostructured Sr-doped SmCoO3 and Sm-doped CeO2 composite powder synthesized by spray pyrolysis
H Shimada, T Yamaguchi, T Suzuki, H Sumi, K Hamamoto, Y Fujishiro
Journal of Power Sources 302, 308-314, 2016
482016
Effects of crystal structure of yttria-and scandia-stabilized zirconia in nickel-based SOFC anodes on carbon deposition and oxidation behavior
H Sumi, P Puengjinda, H Muroyama, T Matsui, K Eguchi
Journal of Power Sources 196 (15), 6048-6054, 2011
452011
Effect of Ni diffusion into BaZr0. 1Ce0. 7Y0. 1Yb0. 1O3− electrolyte during high temperature co-sintering in anode-supported solid oxide fuel cells
H Shimada, T Yamaguchi, H Sumi, Y Yamaguchi, K Nomura, Y Fujishiro
Ceramics International 44 (3), 3134-3140, 2018
432018
Superprotonic conducting phosphate glasses containing water
Y Abe, M Hayashi, T Iwamoto, H Sumi, LL Hench
Journal of non-crystalline solids 351 (24-26), 2138-2141, 2005
402005
Blocking layer for prevention of current leakage for reversible solid oxide fuel cells and electrolysis cells with ceria-based electrolyte
H Sumi, E Suda, M Mori
International Journal of Hydrogen Energy 42 (7), 4449-4455, 2017
392017
Metastable chloride solid electrolyte with high formability for rechargeable all-solid-state lithium metal batteries
N Tanibata, S Takimoto, K Nakano, H Takeda, M Nakayama, H Sumi
ACS Materials Letters 2 (8), 880-886, 2020
372020
Extremely fine structured cathode for solid oxide fuel cells using Sr-doped LaMnO3 and Y2O3-stabilized ZrO2 nano-composite powder synthesized by spray pyrolysis
H Shimada, T Yamaguchi, H Sumi, K Nomura, Y Yamaguchi, Y Fujishiro
Journal of Power Sources 341, 280-284, 2017
372017
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