研究成果 2000 2018

フィルター
記事
2018
3 引用 (Scopus)

Influence of inter-particle resistance between active materials on the discharge characteristics of the positive electrode of lithium ion batteries

Kikukawa, H., Honkura, K. & Koyama, M., 7 10 2018, : : Electrochimica Acta. 278, p. 385-395 11 p.

研究成果: ジャーナルへの寄稿記事

Electrodes
Composite materials
Physics
Physical properties
Microstructure
18 引用 (Scopus)

Solid-Solution Alloy Nanoparticles of the Immiscible Iridium–Copper System with a Wide Composition Range for Enhanced Electrocatalytic Applications

Wang, F., Kusada, K., Wu, D., Yamamoto, T., Toriyama, T., Matsumura, S., Nanba, Y., Koyama, M. & Kitagawa, H., 4 16 2018, : : Angewandte Chemie - International Edition. 57, 17, p. 4505-4509 5 p.

研究成果: ジャーナルへの寄稿記事

Solid solutions
Nanoparticles
Chemical analysis
Alloying
Oxygen

Theoretical Approach to the Sulfidation of the BaTiO3(001) Surfaces and Its Effect on the H2 Oxidation Reaction and CH4 Sequential Dissociation

Rivera Rocabado, D. S., Ishimoto, T. & Koyama, M., 1 25 2018, : : Journal of Physical Chemistry C. 122, 3, p. 1437-1446 10 p.

研究成果: ジャーナルへの寄稿記事

sulfidation
Methane
dissociation
acceleration (physics)
Oxidation
7 引用 (Scopus)

Theoretical study of tetrahedral site occupation by hydrogen in Pd nanoparticles

Ishimoto, T. & Koyama, M., 1 21 2018, : : Journal of Chemical Physics. 148, 3, 034705.

研究成果: ジャーナルへの寄稿記事

occupation
Hydrogen
Nanoparticles
nanoparticles
hydrogen
2017
2 引用 (Scopus)

Future energy and electric power systems and smart technologies

Izui, Y. & Koyama, M., 7 2017, : : IEEJ Transactions on Electrical and Electronic Engineering. 12, 4, p. 453-464 12 p.

研究成果: ジャーナルへの寄稿記事

Electric power systems
Innovation
Renewable energy resources
Energy security
Energy management systems
3 引用 (Scopus)

Predictive Microkinetic Model for Solid Oxide Fuel Cell Patterned Anode: Based on an Extensive Literature Survey and Exhaustive Simulations

Liu, S., Muhammad, A., Mihara, K., Ishimoto, T., Tada, T. & Koyama, M., 9 7 2017, : : Journal of Physical Chemistry C. 121, 35, p. 19069-19079 11 p.

研究成果: ジャーナルへの寄稿記事

cell anodes
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
Anodes
anodes
15 引用 (Scopus)

Structural Stability of Ruthenium Nanoparticles: A Density Functional Theory Study

Nanba, Y., Ishimoto, T. & Koyama, M., 12 14 2017, : : Journal of Physical Chemistry C. 121, 49, p. 27445-27452 8 p.

研究成果: ジャーナルへの寄稿記事

Ruthenium
structural stability
ruthenium
Density functional theory
density functional theory
3 引用 (Scopus)

Theoretical Study of the Hydrogen Absorption Mechanism into a Palladium Nanocube Coated with a Metal-Organic Framework

Nanba, Y., Tsutsumi, T., Ishimoto, T. & Koyama, M., 7 13 2017, : : Journal of Physical Chemistry C. 121, 27, p. 14611-14617 7 p.

研究成果: ジャーナルへの寄稿記事

Palladium
palladium
Hydrogen
Metals
hydrogen
2016
12 引用 (Scopus)

A Synthetic Pseudo-Rh: NO x Reduction Activity and Electronic Structure of Pd-Ru Solid-solution Alloy Nanoparticles

Sato, K., Tomonaga, H., Yamamoto, T., Matsumura, S., Zulkifli, N. D. B., Ishimoto, T., Koyama, M., Kusada, K., Kobayashi, H., Kitagawa, H. & Nagaoka, K., 6 24 2016, : : Scientific reports. 6, 28265.

研究成果: ジャーナルへの寄稿記事

Electronic structure
Solid solutions
Nanoparticles
Catalytic converters
Catalysts
2 引用 (Scopus)

Density Functional Theory Study for Ni Diffusion on Ni(111) Surface under Solid Oxide Fuel Cell Operating Condition

Nakao, K., Ishimoto, T. & Koyama, M., 8 4 2016, : : Journal of Physical Chemistry C. 120, 30, p. 16641-16648 8 p.

研究成果: ジャーナルへの寄稿記事

solid oxide fuel cells
Solid oxide fuel cells (SOFC)
Density functional theory
sintering
Anodes
22 引用 (Scopus)

Electronic Structure and Phase Stability of PdPt Nanoparticles

Ishimoto, T. & Koyama, M., 3 3 2016, : : Journal of Physical Chemistry Letters. 7, 5, p. 736-740 5 p.

研究成果: ジャーナルへの寄稿記事

Phase stability
Electronic structure
Nanoparticles
electronic structure
nanoparticles
2 引用 (Scopus)

Image contrast enhancement of Ni/YSZ anode during the slice-and-view process in FIB-SEM

Liu, S. S., Takayama, A., Matsumura, S. & Koyama, M., 3 1 2016, : : Journal of Microscopy. 261, 3, p. 326-332 7 p.

研究成果: ジャーナルへの寄稿記事

Image Enhancement
Electron Scanning Microscopy
Electrodes
Electrons
Ions
3 引用 (Scopus)

Theoretical investigation of hydrogen absorption properties of rhodium-silver alloys

Yayama, T., Ishimoto, T. & Koyama, M., 3 25 2016, : : Journal of Alloys and Compounds. 662, p. 404-408 5 p.

研究成果: ジャーナルへの寄稿記事

Rhodium alloys
Silver alloys
Hydrogen
Hydrogen storage
Electronic states
9 引用 (Scopus)

Theoretical study on temperature effect of electronic structure and spin state in LaCoO3 by using density functional theory

Ishimoto, T., Ito, Y., Tada, T., Oike, R., Nakamura, T., Amezawa, K. & Koyama, M., 2 1 2016, : : Solid State Ionics. 285, p. 195-201 7 p.

研究成果: ジャーナルへの寄稿記事

X ray absorption
Thermal effects
Electronic structure
Density functional theory
temperature effects
2015
7 引用 (Scopus)

A fundamental study of boron deposition and poisoning of La0.8Sr0.2MnO3 cathode of solid oxide fuel cells under accelerated conditions

Chen, K., Liu, S. S., Guagliardo, P., Kilburn, M. R., Koyama, M. & Jiang, S. P., 1 1 2015, : : Journal of the Electrochemical Society. 162, 12, p. F1282-F1291

研究成果: ジャーナルへの寄稿記事

Boron
poisoning
solid oxide fuel cells
Solid oxide fuel cells (SOFC)
boron
11 引用 (Scopus)

Conceptual design of light integrated gasification fuel cell based on thermodynamic process simulation

Taufiq, B. N., Kikuchi, Y., Ishimoto, T., Honda, K. & Koyama, M., 6 1 2015, : : Applied Energy. 147, p. 486-499 14 p.

研究成果: ジャーナルへの寄稿記事

fuel cell
Conceptual design
Solid oxide fuel cells (SOFC)
Gasification
Fuel cells
11 引用 (Scopus)

Effect of alloying elements on hydrogen absorption properties of palladium-based solid solution alloys

Yayama, T., Ishimoto, T. & Koyama, M., 12 25 2015, : : Journal of Alloys and Compounds. 653, p. 444-452 9 p.

研究成果: ジャーナルへの寄稿記事

Palladium
Alloying elements
Hydrogen
Solid solutions
Atoms
4 引用 (Scopus)

First-principles calculation of OH-/OH adsorption on gold nanoparticles

Liu, S., Ishimoto, T. & Koyama, M., 11 1 2015, : : International Journal of Quantum Chemistry. 115, 22, p. 1597-1605 9 p.

研究成果: ジャーナルへの寄稿記事

Gold
gold
Nanoparticles
Adsorption
nanoparticles
12 引用 (Scopus)

First-principles study of oxygen coverage effect on hydrogen oxidation on Ni(1 1 1) surface

Liu, S., Ishimoto, T. & Koyama, M., 4 1 2015, : : Applied Surface Science. 333, p. 86-91 6 p.

研究成果: ジャーナルへの寄稿記事

Hydrogen
Oxygen
Oxidation
Atoms
Anodic oxidation
11 引用 (Scopus)

First-Principles Study of Oxygen Transfer and Hydrogen Oxidation Processes at the Ni-YSZ-Gas Triple Phase Boundaries in a Solid Oxide Fuel Cell Anode

Liu, S., Ishimoto, T., Monder, D. S. & Koyama, M., 12 10 2015, : : Journal of Physical Chemistry C. 119, 49, p. 27603-27608 6 p.

研究成果: ジャーナルへの寄稿記事

cell anodes
Yttria stabilized zirconia
Phase boundaries
solid oxide fuel cells
yttria-stabilized zirconia
4 引用 (Scopus)

Observation of the Ni/YSZ interface in a conventional SOFC

Liu, S. S., Jiao, Z., Shikazono, N., Matsumura, S. & Koyama, M., 1 1 2015, : : Journal of the Electrochemical Society. 162, 7, p. F750-F754

研究成果: ジャーナルへの寄稿記事

yttria-stabilized zirconia
Solid oxide fuel cells (SOFC)
Japan
Transmission electron microscopy
Lattice theory
5 引用 (Scopus)

The effects of minor elements in La0.6Sr0.4Co0.2Fe0.8O3-δ cathodes on oxygen reduction reaction

Oishi, J., Otomo, J., Oshima, Y. & Koyama, M., 3 1 2015, : : Journal of Power Sources. 277, p. 44-51 8 p.

研究成果: ジャーナルへの寄稿記事

Chemical elements
Cathodes
cathodes
Oxygen
oxygen
9 引用 (Scopus)

Theoretical study of support effect of Au catalyst for glucose oxidation of alkaline fuel cell anode

Ishimoto, T., Hamatake, Y., Kazuno, H., Kishida, T. & Koyama, M., 1 1 2015, : : Applied Surface Science. 324, p. 76-81 6 p.

研究成果: ジャーナルへの寄稿記事

Alkaline fuel cells
Catalyst supports
Glucose
Anodes
Graphite
29 引用 (Scopus)

Why solid oxide cells can be reversibly operated in solid oxide electrolysis cell and fuel cell modes?

Chen, K., Liu, S. S., Ai, N., Koyama, M. & Jiang, S. P., 1 1 2015, : : Physical Chemistry Chemical Physics. 17, 46, p. 31308-31315 8 p.

研究成果: ジャーナルへの寄稿記事

Regenerative fuel cells
electrolysis
Oxides
fuel cells
Fuel cells
2014
28 引用 (Scopus)

A scenario analysis of future energy systems based on an energy flow model represented as functionals of technology options

Kikuchi, Y., Kimura, S., Okamoto, Y. & Koyama, M., 1 1 2014, : : Applied Energy. 132, p. 586-601 16 p.

研究成果: ジャーナルへの寄稿記事

energy flow
energy
power generation
scenario analysis
Power generation
4 引用 (Scopus)

Density functional theory study of sulfur poisoning on nickel anode in solid oxide fuel cells: Effects of surface and subsurface sulfur atoms

Ogura, T., Ishimoto, T. & Koyama, M., 1 1 2014, : : JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 47, 11, p. 793-800 8 p.

研究成果: ジャーナルへの寄稿記事

Solid oxide fuel cells (SOFC)
Nickel
Sulfur
Density functional theory
Anodes
6 引用 (Scopus)

Microstructure evolution of NiO-YSZ cermet during sintering

Liu, S. S., Koyama, M., Toh, S. & Matsumura, S., 9 1 2014, : : Solid State Ionics. 262, p. 460-464 5 p.

研究成果: ジャーナルへの寄稿記事

Cermet Cements
yttria-stabilized zirconia
sintering
Sintering
microstructure
7 引用 (Scopus)

Sintering simulation for porous material by integrating molecular dynamics and master sintering curve

Nakao, K., Ishimoto, T. & Koyama, M., 7 24 2014, : : Journal of Physical Chemistry C. 118, 29, p. 15766-15772 7 p.

研究成果: ジャーナルへの寄稿記事

porous materials
Porous materials
Molecular dynamics
sintering
Sintering
7 引用 (Scopus)

Theoretical study on oxidation reaction mechanism on Au catalyst in direct alkaline fuel cell

Ishimoto, T., Kazuno, H., Kishida, T. & Koyama, M., 9 1 2014, : : Solid State Ionics. 262, p. 328-331 4 p.

研究成果: ジャーナルへの寄稿記事

Alkaline fuel cells
glucose
fuel cells
Glucose
catalysts
19 引用 (Scopus)

The valence band structure of AgxRh1-x alloy nanoparticles

Yang, A., Sakata, O., Kusada, K., Yayama, T., Yoshikawa, H., Ishimoto, T., Koyama, M., Kobayashi, H. & Kitagawa, H., 10 13 2014, : : Applied Physics Letters. 105, 15, 153109.

研究成果: ジャーナルへの寄稿記事

valence
nanoparticles
hydrogen
x ray spectroscopy
photoelectron spectroscopy
2013
19 引用 (Scopus)

A key mechanism of ethanol electrooxidation reaction in a noble-metal-free metal-organic framework

Ishimoto, T., Ogura, T., Koyama, M., Yang, L., Kinoshita, S., Yamada, T., Tokunaga, M. & Kitagawa, H., 5 23 2013, : : Journal of Physical Chemistry C. 117, 20, p. 10607-10614 8 p.

研究成果: ジャーナルへの寄稿記事

Electrooxidation
Precious metals
noble metals
Ethanol
ethyl alcohol
3 引用 (Scopus)

Density functional theory calculation of spin-state transition in LaCoO3

Ishimoto, T., Ito, Y., Kohno, H. & Koyama, M., 1 1 2013, : : ECS Transactions. 57, 1, p. 2655-2660 6 p.

研究成果: ジャーナルへの寄稿記事

X ray absorption
Electron transitions
Density functional theory
Absorption spectra
Crystal lattices
4 引用 (Scopus)

Density functional theory study on the catalytic properties of BaTiO 3 as solid oxide fuel cell anode

Rivera, D. S., Ishimoto, T. & Koyama, M., 1 1 2013, : : ECS Transactions. 57, 1, p. 2723-2732 10 p.

研究成果: ジャーナルへの寄稿記事

fuel cell
Solid oxide fuel cells (SOFC)
Density functional theory
Anodes
oxide
2 引用 (Scopus)

Detailed kinetic modeling for SOFC ni pattern anodes fuelled by methane

Ogura, T., Kohno, H., Liu, S., Ishimoto, T., Koyama, M., Tsukikawa, H. & Tajima, M., 2013, : : ECS Transactions. 57, 1, p. 2865-2870 6 p.

研究成果: ジャーナルへの寄稿記事

Solid oxide fuel cells (SOFC)
Anodes
Methane
Reforming reactions
Kinetics
5 引用 (Scopus)

Detailed transport-reaction models for SOFC Ni-YSZ patterned anodes: A critical inquiry

Kohno, H., Liu, S., Ogura, T., Ishimoto, T., Monder, D. S., Karan, K. & Koyama, M., 2013, : : ECS Transactions. 57, 1, p. 2821-2830 10 p.

研究成果: ジャーナルへの寄稿記事

Phase boundaries
Solid oxide fuel cells (SOFC)
Anodes
Surface diffusion
Electrooxidation

First-principles calculations of the anodic oxidation reactions of solid oxide fuel cell: Oxygen potential effect on nickel (111) surface

Liu, S., Ishimoto, T., Kohno, H. & Koyama, M., 1 1 2013, : : ECS Transactions. 57, 1, p. 2429-2436 8 p.

研究成果: ジャーナルへの寄稿記事

Anodic oxidation
fuel cell
Solid oxide fuel cells (SOFC)
nickel
Nickel
2 引用 (Scopus)

Microstructure observation of Ni/YSZ boundary by TEM and STEM

Liu, S. S., Toh, S., Daio, T., Koyama, M. & Matsumura, S., 1 1 2013, : : ECS Transactions. 57, 1, p. 1401-1405 5 p.

研究成果: ジャーナルへの寄稿記事

Transmission electron microscopy
Scanning
Microstructure
Scanning electron microscopy
Focused ion beams

Molecular dynamics simulation studies of h diffusion in SOFC anode using reactive force field

Saha, L. C., Nakao, K., Kohno, H., Ishimoto, T. & Koyama, M., 1 1 2013, : : ECS Transactions. 57, 1, p. 2649-2654 6 p.

研究成果: ジャーナルへの寄稿記事

Solid oxide fuel cells (SOFC)
Molecular dynamics
Anodes
Atoms
Computer simulation

Molecular dynamics study for sintering property analysis of Ni-YSZ cermet

Nakao, K., Kohno, H., Ishimoto, T. & Koyama, M., 1 1 2013, : : ECS Transactions. 57, 1, p. 1407-1413 7 p.

研究成果: ジャーナルへの寄稿記事

Molecular dynamics
Sintering
activation energy
Activation energy
Impurities

The effects of minor components in LSCF cathode on oxygen reduction reaction

Oishi, J., Otomo, J., Oshima, Y. & Koyama, M., 2013, : : ECS Transactions. 57, 1, p. 1909-1916 8 p.

研究成果: ジャーナルへの寄稿記事

Cathodes
Oxygen
Raw materials
Electrodes
Solid oxide fuel cells (SOFC)
2012
6 引用 (Scopus)

Molecular dynamics simulation based on the multi-component molecular orbital method: Application to H 5O 2 +, D 5O 2 +, and T 5O 2 +

Ishimoto, T. & Koyama, M., 1 2 2012, : : Chemical Physics. 392, 1, p. 166-169 4 p.

研究成果: ジャーナルへの寄稿記事

Molecular orbitals
Molecular dynamics
molecular orbitals
molecular dynamics
Wave functions
2011
10 引用 (Scopus)

A DFT study of bond dissociation trends of perfluorosulfonic acid membrane

Tokumasu, T., Ogawa, I., Koyama, M., Ishimoto, T. & Miyamoto, A., 1 5 2011, : : Journal of the Electrochemical Society. 158, 2

研究成果: ジャーナルへの寄稿記事

Density functional theory
dissociation
density functional theory
membranes
Membranes
123 引用 (Scopus)

Chemical durability of Solid Oxide Fuel Cells: Influence of impurities on long-term performance

Sasaki, K., Haga, K., Yoshizumi, T., Minematsu, D., Yuki, E., Liu, R., Uryu, C., Oshima, T., Ogura, T., Shiratori, Y., Ito, K., Koyama, M. & Yokomoto, K., 11 15 2011, : : Journal of Power Sources. 196, 22, p. 9130-9140 11 p.

研究成果: ジャーナルへの寄稿記事

solid oxide fuel cells
Solid oxide fuel cells (SOFC)
durability
Durability
Impurities
7 引用 (Scopus)
Hydration
hydration
Hydrogen
Hydrogen bonds
Proton transfer
16 引用 (Scopus)

Tackling power outages in Japan: The earthquake compels a swift transformation of the power supply

Fukushima, Y., Kikuchi, Y., Kajikawa, Y., Kubota, M., Nakagaki, T., Matsukata, M., Kato, Y. & Koyama, M., 7 4 2011, : : JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 44, 6, p. 365-369 5 p.

研究成果: ジャーナルへの寄稿記事

Outages
Earthquakes
Gas turbines
Engineers
Industry
6 引用 (Scopus)

Theoretical study on dissolution and reprecipitation mechanism of Pt complex in Pt electrocatalyst

Ishimoto, T., Ogura, T., Umeda, M. & Koyama, M., 2 24 2011, : : Journal of Physical Chemistry C. 115, 7, p. 3136-3142 7 p.

研究成果: ジャーナルへの寄稿記事

electrocatalysts
Electrocatalysts
dissolving
Dissolution
Solvation
2010
121 引用 (Scopus)

A Metal-Organic Framework as an Electrocatalyst for Ethanol Oxidation

Yang, L., Kinoshita, S., Yamada, T., Kanda, S., Kitagawa, H., Tokunaga, M., Ishimoto, T., Ogura, T., Nagumo, R., Miyamoto, A. & Koyama, M., 7 19 2010, : : Angewandte Chemie - International Edition. 49, 31, p. 5348-5351 4 p.

研究成果: ジャーナルへの寄稿記事

Electrocatalysts
Ethanol
Metals
Oxidation
Catalysts
4 引用 (Scopus)

Applying ultra-accelerated quantum chemical molecular dynamics technique for the evaluation of ligand protein interactions

Sahu, K. K., Ismael, M., Rauf, S. M. A., Suzuki, A., Sahnoun, R., Koyama, M., Tsuboi, H., Hatakeyama, N., Endou, A., Takaba, H., Deka, R. C., Del Carpio, C. A., Kubo, M. & Miyamoto, A., 2 1 2010, : : Medicinal Chemistry Research. 19, 1, p. 1-10 10 p.

研究成果: ジャーナルへの寄稿記事

Molecular Dynamics Simulation
Molecular dynamics
Methotrexate
Tetrahydrofolate Dehydrogenase
Ligands
20 引用 (Scopus)

Chemical degradation mechanism of model compound, CF3(CF 2)3O(CF2)2OCF2SO 3H, of PFSA polymer by attack of hydroxyl radical in PEMFCs

Ishimoto, T., Nagumo, R., Ogura, T., Ishihara, T., Kim, B., Miyamoto, A. & Koyama, M., 8 26 2010, : : Journal of the Electrochemical Society. 157, 9

研究成果: ジャーナルへの寄稿記事

hydroxyl radicals
Proton exchange membrane fuel cells (PEMFC)
Hydroxyl Radical
Ether
attack
13 引用 (Scopus)

Host emission from BaMgAl10O17 and SrMgAl 10O17 phosphor: Effects of temperature and defect level

Onuma, H., Tanno, H., Suzuki, A., Sahnoun, R., Koyama, M., Tsuboi, H., Hatakeyama, N., Endou, A., Takaba, H., Del Carpio, C. A., Kubo, M., Deka, R. C., Kajiyama, H., Shinoda, T. & Miyamoto, A., 3 1 2010, : : Journal of the Society for Information Display. 18, 3, p. 211-222 12 p.

研究成果: ジャーナルへの寄稿記事

Oxygen vacancies
Phosphors
phosphors
Thermoluminescence
Defects