NIWA Hideharu
- Articles
- Wetting Induced Oxidation of Pt-based Nano Catalysts Revealed by In Situ High Energy Resolution X-ray Absorption Spectroscopy
Cui Yi-Tao; Harada Yoshihisa; Niwa Hideharu; Hatanaka ...
Scientific reports/7(1)/p.1482, 2017-05 - A compact permanent-magnet system for measuring magnetic circular dichroism in resonant inelastic soft X-ray scattering
Miyawaki Jun; Suga Shigemasa; Fujiwara Hidenori; Niwa ...
JOURNAL OF SYNCHROTRON RADIATION/24(2)/pp.449-455, 2017-03 - Domain Size of Phase-Separated NaxCoO2 as Investigated by X-Ray Microdiffraction
Niwa Hideharu; Shibata Takayuki; Imai Yasuhiko; Kimura S...
batteries/3(1), 2017-03 - Local structures around the substituted elements in mixed layered oxides
Akama Shota; Kobayashi Wataru; Amaha Kaoru; Niwa Hidehar...
SCIENTIFIC REPORTS/7/p.43791, 2017-03 - Resonant inelastic x-ray scattering study of entangled spin-orbital excitations in superconducting PrFeAsO0.7
Nomura T.; Harada Y.; Niwa H.; Ishii K.; Ishikado M.; Shamoto ...
PHYSICAL REVIEW B/94(3)/p.035134, 2016-07 - Pt-free carbon-based fuel cell catalyst prepared from spherical polyimide for enhanced oxygen diffusion
Yuta Nabae; Shinsuke Nagata; Teruaki Hayakawa; Hideharu Niwa...
Scientific Report/6/p.23276, 2016-03 - Lewis Basicity of Nitrogen-Doped Graphite Observed by CO2 Chemisorption
Hisao Kiuchi; Riku Shibuya; Kondo Takahiro; Junji Nakamura; H...
Nanoscale Research Letters/11(1)/pp.127-1-127-7, 2016-03 - Redox Potential Paradox in NaxMO2 for Sodium-Ion Battery Cathodes
Yusuke Nanba; Tatsumi Iwao; Benoit Mortemard de Boisse; Wenw...
CHEMISTRY OF MATERIALS/28(4)/pp.1058-1065, 2016-02 - Characterization of nitrogen species incorporated into graphite using low energy nitrogen ion sputtering
Hisao Kiuchi; Kondo Takahiro; Masataka Sakurai; Donghui Guo; ...
Physical Chemistry Chemical Physics/18(1)/pp.458-465, 2016-01 - Electron-phonon coupling in the bulk of anatase TiO2 measured by resonant inelastic x-ray spectroscopy
S. Moser; S. Fatale; P. Krüger; H. Berger; P. Bugnon; A. Magre...
PHYSICAL REVIEW LETTERS/115/p.096404, 2015-08 - Active site formation mechanism of carbon-based oxygen reduction catalysts derived from a hyperbranched iron phthalocyanine polymer
Hiraike Yusuke; Saito Makoto; Niwa Hideharu; Kobayashi M...
Nanoscale Research Letters/10(1)/p.179, 2015-04 - Enhancement in Kinetics of the Oxygen Reduction Reaction on a Nitrogen-Doped Carbon Catalyst by Introduction of Iron via Electrochemical Methods
Wu Jiajia; Zhang Da; Niwa Hideharu; Harada Yoshihisa; Osh...
Langmuir/31/pp.5529-5536, 2015-04 - Distinguishing between High- and Low-Spin States for Divalent Mn in Mn-Based Prussian Blue Analogue by High-Resolution Soft X-ray Emission Spectroscopy
Asakura D.; Nanba Y.; Okubo M.; Mizuno Y.; Niwa Hideharu...
J. Phys. Chem. Lett./5/pp.4008-4013, 2014-10 - Operando soft x-ray emission spectroOperando soft x-ray emission spectroscopy of LiMn2O4 thin film involving Li–ion extraction/insertion reactionscopy of LiMn2O4 thin film involving Li–ion extraction/insertion reaction
Asakura Daisuke; Hosono Eiji; Niwa Hideharu; Kiuchi Hisa...
Electrochemistry Communications/50/pp.93-96, 2014-09 - Electronic Excitations of a Magnetic Impurity State in the Diluted Magnetic Semiconductor (Ga,Mn)As
Kobayashi M.; Niwa Hideharu; Takeda Y.; Fujimori A.; Senb...
Phys. Rev. Lett./112/p.107203, 2014-03 - Selective Probing of the OH or OD Stretch Vibration in Liquid Water Using Resonant Inelastic Soft-X-Ray Scattering
Harada Y.; Tokushima T.; Horikawa Y.; Takahashi O.; Niwa ...
Phys. Rev. Lett./111/p.193001, 2013-11 - Operando Soft X-ray Emission Spectroscopy of Iron Phthalocyanine-based Oxygen Reduction Catalysts
Niwa Hideharu; Kiuchi H.; Miyawaki J.; Harada Y.; Oshima ...
Electrochem. Commun./35/pp.57-60, 2013-08 - Elucidation of Rh-induced in-gap states of Rh:SrTiO3 visible-light-driven photocatalyst by soft x-ray spectroscopy and first-principles calculations
Kawasaki S.; Akagi K.; Nakatsuji K.; Yamamoto S.; Matsuda...
J. Phys. Chem. C/116/p.24445, 2012-11 - Probing carbon edge exposure of iron phthalocyanine-basedoxygen reduction catalysts by soft X-ray absorption spectroscopy
Niwa Hideharu; Saito M.; Kobayashi M.; Harada Y.; Oshima ...
J. Power Sources/223/pp.30-35, 2012-09 - Study on the oxygen adsorption property of nitrogen-containing metal-free carbon-based cathode catalysts for oxygen reduction reaction
Kiuchi H.; Niwa Hideharu; Kobayashi M.; Harada Y.; Oshima...
Electrochimica Acta/82/pp.291-295, 2012-06 - Platinum oxidation responsible for degradation of platinum?cobalt alloy cathode catalysts for polymer electrolyte fuel cells
Hidai S.; Kobayashi M.; Niwa Hideharu; Harada Y.; Oshima ...
J. Power Sources/215/pp.233-239, 2012-05 - Indirect contribution of transition metal towards oxygen reduction reaction activity in iron phthalocyanine-based carbon catalysts for polymer electrolyte fuel cells
Kobayash M.; Niwa Hideharu; Saito M.; Harada Y.; Oshima ...
Electrochimica Acta/74/pp.254-259, 2012-04 - Ultrahigh resolution soft x-ray emission spectrometer at BL07LSU in SPring-8
Harada Y.; Kobayashi M.; Niwa Hideharu; Senba Y.; Ohashi ...
The Review of Scientific Instruments/83/p.013116, 2012-01 - Role of residual transition-metal atoms in oxygen reductionreaction in cobalt phthalocyanine-based carbon cathodecatalysts for polymer electrolyte fuel cell
Kobayashi M.; Niwa Hideharu; Harada Y.; Horiba K.; Oshima...
J. Power Sources/196/pp.8346-8351, 2011-06 - Changes in electronic states of platinum?cobalt alloy catalyst for polymer electrolyte fuel cells by potential cycling
Hidai Shoichi; Kobayashi Masaki; Niwa Hideharu; Harada Y...
J. Power Sources/196/pp.8340-8345, 2011-06 - more...
- Wetting Induced Oxidation of Pt-based Nano Catalysts Revealed by In Situ High Energy Resolution X-ray Absorption Spectroscopy