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First Author & Corresponding Author (Hirofumi Sumi)

2025   2024   2023   2022   2021   2020   2019   2018   2017   2016   2015   2014   2013   2012   2011   2010   2009   2006   2005   2004   2003   2001  

2025

  • 42) H. Sumi, H. Shimada, Y. Yamaguchi, M. Fujioka, M. Momai, K. Sato, M. Yamaguchi, R. A. Budiman and T. Kawada, "Effect of Noble Metallic Current Collectors and Contact Layers on Power Density and Polarization Resistance of Planar Solid Oxide Fuel Cells", Int. J. Hydrogen Energy, 127 (2025) 286-294.
    https://doi.org/10.1016/j.ijhydene.2025.04.153
  • 41) H. Sumi, K. Watanabe, A. Sharma, M. Fujioka, H. Shimada, Y. Mizutani, M. S. Alam and I. Kagomiya, "Oxygen Reduction Kinetics of High Performance BaCo0.4Fe0.4M0.1Y0.1O3- (M = Mg, Zr) Positrode for Protonic Ceramic Fuel Cells", Commun. Chem., 8 (2025) 71.
    https://doi.org/10.1038/s42004-025-01468-4

2024

  • 40) H. Sumi, K. Adachi and Y. Daiko, "Prevention of Morphological Change for (Ba,Sr)(Co,Fe)O3 Cathodes by Incorporating (Ce,Gd)O2 for Intermediate-temperature Solid Oxide Fuel Cells", Ceram. Int., 50 (2024) 40176-40180.
    https://doi.org/10.1016/j.ceramint.2024.07.317
  • 39) H. Sumi, "Co-electrolysis SOEC and Internal Reforming SOFC for Achieving a Carbon-neutral Society", RSC Sustain., 2 (2024) 1568-1579.
    https://doi.org/10.1039/D4SU00095A

2023

  • 38) H. Sumi, H. Shimada, K. Watanabe, Y. Yamaguchi, K. Nomura, Y. Mizutani, R. M. Matsuda, M. Mori, K. Yashiro, T. Araki and Y. Okuyama, "Investigation of Degradation Mechanisms by Overpotential Evaluation for Protonic Ceramic Fuel Cells", J. Power Sources, 582 (2023) 233528.
    https://doi.org/10.1016/j.jpowsour.2023.233528
  • 37) H. Sumi, H. Shimada, Y. Yamaguchi, K. Nomura and K. Sato, "Why Is the Performance Different between Small- and Large-scale SOFCs?", Electrochim. Acta, 443 (2023) 141965.
    https://doi.org/10.1016/j.electacta.2023.141965
  • 36) H. Sumi, H. Shimada, K. Watanabe, Y. Yamaguchi, K. Nomura, Y. Mizutani and Y. Okuyama, "External Current Dependence of Polarization Resistances for Reversible Solid Oxide and Protonic Ceramic Cells with Current Leakage", ACS Appl. Energy Mater., 6 (2023) 1853-1861.
    https://doi.org/10.1021/acsaem.2c03733

2022

2021

  • 35) H. Sumi, H. Shimada, Y. Yamaguchi, Y. Mizutani, Y. Okuyama and K. Amezawa, "Comparison of Electrochemical Impedance Spectra for Electrolyte-supported Solid Oxide Fuel Cells (SOFCs) and Protonic Ceramic Fuel Cells (PCFCs)", Sci. Rep., 11 (2021) 10622.
    https://doi.org/10.1038/s41598-021-90211-9
  • 34) H. Sumi, S. Takahashi, Y. Yamaguchi and H. Shimada, "Lanthanum-doped Ceria Interlayer between Electrolyte and Cathode for Solid Oxide Fuel Cells", J. Asian Ceram. Soc., 9 (2021) 609-616.
    https://doi.org/10.1080/21870764.2021.1905254

2020

  • 33) H. Sumi, H. Shimada, Y. Yamaguchi, T. Yamaguchi and Y. Fujishiro, "Degradation Evaluation by Distribution of Relaxation Times Analysis for Microtubular Solid Oxide Fuel Cells", Electrochim. Acta, 339 (2020) 135913.
    https://doi.org/10.1016/j.electacta.2020.135913
  • at) S. Takahashi, H. Sumi and Y. Fujishiro, "Influence of Cation Interdiffusion on Electrical Properties of Doped Ceria/Lanthanum Silicate Composite", Ceram. Int., 46 (2020) 20423-20428.
    https://doi.org/10.1016/j.ceramint.2020.05.134
  • as) S. Takahashi, H. Sumi and Y. Fujishiro, "Modification of Sinterability and Electrical Property by Bi2O3 Addition to La9.333Si6O26 for Co-sintering with Gd0.1Ce0.9O1.95", Inorg. Chem. Commun., 117 (2020) 107974.
    https://doi.org/10.1016/j.inoche.2020.107974

2019

  • 32) H. Sumi, E. Suda, M. Mori and A. Weber, "Infiltration of Lanthanum Doped Ceria into Nickel-Zirconia Anodes for Direct Butane Utilization in Solid Oxide Fuel Cells", J. Electrochem. Soc., 166 (2019) F301-F305.
    https://doi.org/10.1149/2.0891904jes
  • ar) H. Sumi, S. Nakabayashi, T. Kawada, Y. Uchiyama, N. Uchiyama and K. Ichihara, "Demonstration of SOFC Power Sources for Drones (UAVs; Unmanned Aerial Vehicles)", ECS Trans., 91(1) (2019) 149-157.
    https://doi.org/10.1149/09101.0149ecst
  • aq) S. Takahashi, H. Sumi and Y. Fujishiro, "Ceria/Lanthanum Silicate Bi-Layer Electrolytes for SOFC Operating at Intermediate Temperatures", ECS Trans., 91(1) (2019) 571-577.
    https://doi.org/10.1149/09101.0571ecst
  • ap) S. Takahashi, H. Sumi and Y. Fujishiro, "Development of Co-sintering Process for Anode-supported Solid Oxide Fuel Cells with Gadolinia-doped Ceria/Lanthanum Silicate Bi-layer Electrolyte", Int. J. Hydrogen Energy, 44 (2019) 23377-23383.
    https://doi.org/10.1016/j.ijhydene.2019.07.006

2018

  • ao) H. Wang, H. Sumi and S. A. Barnett, "Effect of High-temperature Ageing on (La,Sr)(Co,Fe)O3- Cathodes in Microtubular Solid Oxide Fuel Cells", Solid State Ionics, 323 (2018) 85-91.
    https://doi.org/10.1016/j.ssi.2018.05.019

2017

  • 31) H. Sumi, T. Yamaguchi, H. Shimada, Y. Fujishiro and M. Awano, "Internal Partial Oxidation Reforming of Butane and Steam Reforming of Ethanol for Anode-supported Microtubular Solid Oxide Fuel Cells", Fuel Cells, 17 (2017) 875-881.
    https://doi.org/10.1002/fuce.201700154
  • 30) H. Sumi, "Valency Effects of Cation Dopant on Ultraphosphate Glass Electrolytes for Intermediate Temperature Fuel Cells", J. Ceram. Soc. Jpn., 125 (2017) 829-832.
    https://doi.org/10.2109/jcersj2.17129
  • 29) H. Sumi, T. Yamaguchi, H. Shimada, K. Hamamoto, T. Suzuki and S. A. Barnett, "Direct Butane Utilization on Ni-(Y2O3)0.08(ZrO2)0.92-(Ce0.9Gd0.1)O1.95 Composite Anode-supported Microtubular Solid Oxide Fuel Cells", Electrocatal., 8 (2017) 288-293.
    https://doi.org/10.1007/s12678-017-0369-7
  • 28) H. Sumi, H. Shimada, Y. Yamaguchi and T. Yamaguchi, "Metal-supported Microtubular Solid Oxide Fuel Cells with Ceria-based Electrolytes", J. Ceram. Soc. Jpn., 125 (2017) 208-212.
    https://doi.org/10.2109/jcersj2.16221
  • 27) H. Sumi, H. Shimada, Y. Yamaguchi and T. Yamaguchi, "Effect of Anode Thickness on Polarization Resistance for Metal-Supported Microtubular Solid Oxide Fuel Cells", J. Electrochem. Soc., 164 (2017) F243-F247.
    https://doi.org/10.1149/2.0431704jes
  • 26) H. Sumi, E. Suda and M. Mori, "Blocking Layer for Prevention of Current Leakage for Reversible Solid Oxide Fuel Cells and Electrolysis Cells with Ceria-based Electrolyte", Int. J. Hydrogen Energy, 42 (2017) 4449-4455.
    https://doi.org/10.1016/j.ijhydene.2016.09.176
  • an) H. Sumi, Y. Yamaguchi, H. Shimada, Y. Fujishiro and M. Awano, "Development of a Portable SOFC System with Internal Partial Oxidation Reforming of Butane and Steam Reforming of Ethanol", ECS Trans., 80(9) (2017) 71-77.
    https://doi.org/10.1149/08009.0071ecst
  • am) H. Sumi, "Development of Compact-High Power Fuel Cell System", Clean Energy, 26(8) (2017) 8-12.
    http://www.nikko-pb.co.jp/products/detail.php?product_id=4120
  • al) H. Sumi, H. Shimada, Y. Yamaguchi and T. Yamaguchi, "Distribution of Relaxation Times Analysis for Optimization of Anode Thickness in Metal-Supported Microtubular Solid Oxide Fuel Cells", ECS Trans., 78(1) (2017) 2151-2157.
    https://doi.org/10.1149/07801.2151ecst

2016

  • 25) H. Sumi, H. Shimada, K. Sato and T. Hashida, "Estimation of Micro-size Defects in Electrolyte Thin-film by X-ray Stress Measurement for Anode-supported Solid Oxide Fuel Cells", Mech. Eng. J., 3 (2016) 16-00177.
    https://doi.org/10.1299/mej.16-00177
  • 24) H. Sumi, D. Kennouche, K. Yakal-Kremski, T. Suzuki, S. A. Barnett, D. J. Miller, T. Yamaguchi, K. Hamamoto and Y. Fujishiro, "Electrochemical and Microstructural Properties of Ni-(Y2O3)0.08(ZrO2)0.92-(Ce0.9Gd0.1)O1.95 Anode-supported Microtubular Solid Oxide Fuel Cells", Solid State Ionics, 285 (2016) 227-233.
    https://doi.org/10.1016/j.ssi.2015.07.005

2015

  • 23) H. Sumi, T. Ohshiro, M. Nakayama, T. Suzuki and Y. Fujishiro, "Prevention of Reaction between (Ba,Sr)(Co,Fe)O3 Cathodes and Yttria-stabilized Zirconica Electrolytes for Intermediate-temperature Solid Oxide Fuel Cells", Electrochim. Acta, 184 (2015) 403-409.
    https://doi.org/10.1016/j.electacta.2015.10.092
  • 22) H. Sumi, Y. Nakano, Y. Fujishiro and T. Kasuga, "Proton Conduction of MO-P2O5 Glasses (M = Zn, Ba) Containing a Large Amount of Water", Solid State Sci., 45 (2015) 5-8.
    https://doi.org/10.1016/j.solidstatesciences.2015.04.009
  • 21) H. Sumi, T. Yamaguchi, T. Suzuki, H. Shimada, K. Hamamoto and Y. Fujishiro, "Direct Hydrocarbon Utilization in Microtubular Solid Oxide Fuel Cells", J. Ceram. Soc. Jpn., 123 (2015) 213-216.
    https://doi.org/10.2109/jcersj2.123.213
  • aj) H. Sumi, H. Shimada, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "Development of Microtubular Solid Oxide Fuel Cells using Hydrocarbon Fuels", Advances in Solid Oxide Fuel Cells and Electronic Ceramics, Ceram. Eng. Sci. Proc., 36(3) (2015) 93-104.
    https://doi.org/10.1002/9781119211501.ch10
  • ai) H. Sumi, "Development of Micro SOFC Power Generator", Petrotech, 38 (2015) 937-941.
    https://sekiyu-gakkai.org/search/list.html#38-12
  • ah) H. Sumi, T. Yamaguchi, T. Suzuki, H. Shimada, K. Hamamoto and Y. Fujishiro, "Development of Ceria-Based Microtubular Solid Oxide Fuel Cells", ECS Trans., 69(16) (2015) 61-67.
    https://doi.org/10.1149/06916.0061ecst
  • ag) H. Sumi, T. Yamaguchi, T. Suzuki, H. Shimada, K. Hamamoto and Y. Fujishiro, "Development of Micro Power Generator Using LPG-Fueled Microtubular Solid Oxide Fuel Cells", ECS Trans., 68(1) (2015) 201-208.
    https://doi.org/10.1149/06801.0201ecst
  • af) H. Sumi, "Development of Direct LPG-fueled Handy SOFC System", Catalysts Catalysis, 57 (2015) 169-173.
    https://catsj.jp/jnl/top?volume=57&issue=3

2014

  • 20) H. Sumi, T. Yamaguchi, T. Suzuki, H. Shimada, K. Hamamoto and Y. Fujishiro, "Effects of Anode Microstructures on Durability of Microtubular Solid Oxide Fuel Cells during Internal Steam Reforming of Methane", Electrochem. Commun., 49 (2014) 34-37.
    https://doi.org/10.1016/j.elecom.2014.10.006
  • 19) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "Electrochemical Analysis for Anode-supported Microtubular Solid Oxide Fuel Cells in Partial Reducing and Oxidizing Conditions", Solid State Ionics, 262 (2014) 407-410.
    https://doi.org/10.1016/j.ssi.2014.01.012
  • ae) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "Development of Portable SOFC System Using Microtubular Cells", ECS Trans., 56(1) (2014) 63-69.
    https://doi.org/10.1149/05601.0063ecst

2013

  • 18) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "Effects of Anode Microstructure on Mechanical and Electrochemical Properties for Anode-Supported Microtubular Solid Oxide Fuel Cells", J. Am. Ceram. Soc., 96 (2013) 3584-3588.
    https://doi.org/10.1111/jace.12603
  • 17) H. Sumi, Y. Nakano, Y. Fujishiro and T. Kasuga, "Proton Conductivities and Structures of BaO-ZnO-P2O5 Glasses in the Ultraphosphate Region for Intermediate Temperature Fuel Cells", Int. J. Hydrogen Energy, 38 (2013) 15354-15360.
    https://doi.org/10.1016/j.ijhydene.2013.09.087
  • 16) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "Experimental and Simulated Evaluations of Current Collection Losses in Anode-Supported Microtubular Solid Oxide Fuel Cells", J. Electrochem. Soc., 160 (2013) F1232-F1236.
    https://doi.org/10.1149/2.031311jes
  • 15) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "High Performance of La0.6Sr0.4Co0.2Fe0.8O3-Ce0.9Gd0.1O1.95 Nanoparticulate Cathode for Intermediate Temperature Microtubular Solid Oxide Fuel Cells", J. Power Sources, 226 (2013) 354-358.
    https://doi.org/10.1016/j.jpowsour.2012.11.015
  • 14) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "Effect of Operating Temperature on Durability for Direct Butane Utilization of Microtubular Solid Oxide Fuel Cells", Electrochemistry, 81 (2013) 86-91.
    https://doi.org/10.5796/electrochemistry.81.86

2012

  • 13) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki and Y. Fujishiro, "Impact of Direct Butane Microtubular Solid Oxide Fuel Cells", J. Power Sources, 220 (2012) 74-78.
    https://doi.org/10.1016/j.jpowsour.2012.07.106
  • 12) H. Sumi, T. Yamaguchi, K. Hamamoto, T. Suzuki, Y. Fujishiro, T. Matsui and K. Eguchi, "AC Impedance Characteristics for Anode-supported Microtubular Solid Oxide Fuel Cells", Electrochim. Acta, 67 (2012) 159-165.
    https://doi.org/10.1016/j.electacta.2012.02.021

2011

  • 11) H. Sumi, P. Puengjinda, H. Muroyama, T. Matsui and K. Eguchi, "Effects of Crystal Structure of Yttria- and Scandia-stabilized Zirconia in Nickel-based SOFC Anodes on Carbon Deposition and Oxidation Behavior", J. Power Sources, 196 (2011) 6048-6054.
    https://doi.org/10.1016/j.jpowsour.2011.03.092
  • 10) H. Sumi, Y.-H. Lee, H. Muroyama, T. Matsui, M. Kamijo, S. Mimuro, M. Yamanaka, Y. Yakajima and K. Eguchi, "Effect of Carbon Deposition by Carbon Monoxide Disproportionation on Electrochemical Characteristics at Low Temperature Operation for Solid Oxide Fuel Cells", J. Power Sources, 196 (2011) 4451-4457.
    https://doi.org/10.1016/j.jpowsour.2011.01.061

2010

  • 9) H. Sumi, R. Kishida, J.-Y. Kim, H. Muroyama, T. Matsui and K. Eguchi, "Correlation between Microstructural and Electrochemical Characteristics during Redox Cycles for Ni-YSZ Anode of SOFCs", J. Electrochem. Soc., 157 (2010) B1747-B1752.
    https://doi.org/10.1149/1.3491345
  • 8) H. Sumi, Y.-H. Lee, H. Muroyama, T. Matsui and K. Eguchi, "Comparison Between Internal Steam and CO2 Reforming of Methane for Ni-YSZ and Ni-ScSZ SOFC Anodes", J. Electrochem. Soc., 157 (2010) B1118-B1125.
    https://doi.org/10.1149/1.3435320

2009

  • 7) H. Sumi, K. Kurachi, T. Hiroyama, Y. Umeda, K. Oshima and H. Kakiuchi, "Evaluation of Water-warming Characteristics of an Integrated Adsorption Heat Pump with Zeolite Absorbent", Kagaku Kogaku Ronbunshu, 35 (2009) 312-317.
    https://doi.org/10.1252/kakoronbunshu.35.312

2006

  • 6) H. Sumi, K. Ukai, M. Yokoyama, Y. Mizutani, Y. Doi, Y. Akiniwa and K. Tanaka, "Changes of Internal Stress in Solid-Oxide Fuel Cell During Red-Ox Cycle Evaluated by In Situ Measurement With Synchrotron Radiation", ASME J. Fuel Cell Sci. Technol., 3 (2006) 68-74.
    https://doi.org/10.1115/1.2134739

2005

  • 5) H. Sumi, M. Mizutani, Y. Doi, Y. Akiniwa and K. Tanaka, "In-situ Measurement of Internal Stresses in Solid Oxide Fuel Cells during Thermal Cycling by Synchrotron Radiation", J. Soc. Mat. Sci. Jpn., 54 (2005) 440-446.
    https://doi.org/10.2472/jsms.54.440
  • 4) H. Sumi, M. Mizutani, M. Takahashi, M. Sakurai, M. Watanabe and Y. Abe, "Possibility of Non-humidified Operation for Fuel Cells using Electrolyte of Protonic Conductors of Phosphate Glasses with Sr-Ba-Pb Series", Electrochemistry, 73 (2005) 194-198.
    https://doi.org/10.5796/electrochemistry.73.194

2004

  • 3) H. Sumi, M. Mizutani, M. Takahashi, M. Hayashi, T. Iwamoto, M. Sakurai, M. Watanabe and Y. Abe, "Characteristics of Fuel Cells using Protonic Conductors of Phosphate Glasses as Electrolyte", Electrochemistry, 72 (2004) 633-636.
    https://doi.org/10.5796/electrochemistry.72.633
  • 2) H. Sumi, K. Ukai, Y. Mizutani, H. Mori, C-J Wen, H. Takahashi and O. Yamamoto, "Performance of Nickel-Scandia-Stabilized Zirconia Cermet Anodes for SOFCs in 3% H2O-CH4", Solid State Ionics, 174 (2004) 151-156.
    https://doi.org/10.1016/j.ssi.2004.06.016

2003

  • aa) H. Sumi, K. Ukai, K. Hisada, Y. Mizutani and O. Yamamoto, "High Performance Cell Development Using Scandia Doped Zirconia Electrolyte for Low Temperature Operating", Proc. 8th Int. SOFC Symp., (2003) 995-1002.

2001

  • 1) H. Sumi, M. Kato, Y. Nishino, S. Asano and U. Mizutani, "Electrical Resistivity Anomaly and Magnetic Properties of Heusler-type Fe2VAl", J. Jpn. Inst. Metals, 65 (2001) 771-774.
    https://doi.org/10.2320/jinstmet1952.65.9_771