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Reserch articles

  1. [84] K. Toyoda, H. Adachi, N. Miyata, R. Hinogami, Y. Orikasa, Y. Uchimoto, “Surface analysis of topmost layer of epitaxial layered oxide thin film: Application to delafossite oxide for oxygen evolution reaction”, Surf. Sci., 668, 93-99 (2018).
  2. [83] J. Hwang, K. Matsumoto, Y. Orikasa, M. Katayama, Y. Inada, T. Nohira, R. Hagiwara, “Crystalline maricite NaFePO4 as a positive electrode material for sodium secondary batteries operating at intermediate temperature”, J. Power Sources, 377, 80-86 (2018).
  3. [82] N. Aoki, H. Inoue, T. Okawa, Y. Ikehata, A. Shirai, H. Daimon, T. Doi, Y. Orikasa, Y. Uchimoto, H. Jinnai, S. Inamoto, Y. Otsuka, M. Inaba, “Enhancement of Oxygen Reduction Reaction Activity of Pd Core-Pt Shell Structured Catalyst on a Potential Cycling Accelerated Durability Test”, Electrocatalysis, 9, 125-138 (2018).
  4. [81] K. Suzuki, A. Suzuki, T. Ishikawa, M. Itou, H. Yamashige, Y. Orikasa, Y. Uchimoto, Y. Sakurai, H. Sakurai, “In operando quantitation of Li concentration for a commercial Li-ion rechargeable battery using high-energy X-ray Compton scattering”, J. Synchrotron Rad., 24, 1006-1011 (2017).
  5. [80] R. Matsui, M. Katayama, Y. Inada, Y. Orikasa, “Charge-Discharge Property of Non-Stoichiometric Lithium Iron Silicate”, ECS Transactions, 80, 111-116 (2017).
  6. [79] Y. Koyama, T. Uyama, Y. Orikasa, T. Naka, H. Komatsu, K. Shimoda, H. Murayama, K. Fukuda, H. Arai, E. Matsubara, Y. Uchimoto, Z. Ogumi, “Hidden Two-Step Phase Transition and Competing Reaction Pathways in LiFePO4”, Chem. Mater., 29, 2855-2863 (2017).
  7. [78] T. Hakari, M. Deguchi, K. Mitsuhara, T. Ohta, K. Saito, Y. Orikasa, Y. Uchimoto, Y. Kowada, A. Hayashi, M. Tatsumisago, “Structural and Electronic-State Changes of a Sulfide Solid Electrolyte during the Li Deinsertion–Insertion Processes”, Chem. Mater., 29, 4768-4774 (2017).
  8. [77] H. Hafiz, K. Suzuki, B. Barbiellini, Y. Orikasa, V. Callewaert, S. Kaprzyk, M. Itou, K. Yamamoto, R. Yamada, Y. Uchimoto, Y. Sakurai, H. Sakurai, A. Bansil, “Visualizing redox orbitals and their potentials in advanced lithium-ion battery materials using high-resolution x-ray Compton scattering”, Science Advances, 3, e1700971 (2017).
  9. [76] A. Yamazaki, Y. Orikasa, K. Chen, Y. Uchimoto, T. Kamiya, M. Koka, T. Satoh, K. Mima, Y. Kato, K. Fujita, “In-situ measurement of the lithium distribution in Li-ion batteries using micro-IBA techniques”, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, 371, 298-302 (2016).
  10. [75] T. Yajima, M. Koshiko, Y.Q. Zhang, T. Oguchi, W. Yu, D. Kato, Y. Kobayashi, Y. Orikasa, T. Yamamoto, Y. Uchimoto, M.A. Green, H. Kageyama, “Selective and low temperature transition metal intercalation in layered tellurides”, Nature Comm., 7, 13809 (2016).
  11. [74] X.M. Wang, Y. Orikasa, Y. Uchimoto, “Platinum-Based Electrocatalysts for the Oxygen-Reduction Reaction: Determining the Role of Pure Electronic Charge Transfer in Electrocatalysis”, ACS Catalysis, 6, 4195-4198 (2016).
  12. [73] H. Tanida, H. Yamashige, Y. Orikasa, Y. Gogyo, H. Arai, Y. Uchimoto, Z. Ogumi, “Elucidating the Driving Force of Relaxation of Reaction Distribution in LiCoO2 and LiFePO4 Electrodes Using X-ray Absorption Spectroscopy”, J. Phys. Chem. C, 120, 4739-4743 (2016).
  13. [72] I. Takahashi, T. Mori, T. Yoshinari, Y. Orikasa, Y. Koyama, H. Murayama, K. Fukuda, M. Hatano, H. Arai, Y. Uchimoto, T. Terai, “Irreversible phase transition between LiFePO4 and FePO4 during high-rate charge-discharge reaction by operando X-ray diffraction”, J. Power Sources, 309, 122-126 (2016).
  14. [71] K. Suzuki, B. Barbiellini, Y. Orikasa, S. Kaprzyk, M. Itou, K. Yamamoto, Y.J. Wang, H. Hafiz, Y. Uchimoto, A. Bansil, Y. Sakurai, H. Sakurai, “Non-destructive measurement of in-operando lithium concentration in batteries via x-ray Compton scattering”, J. Appl. Phys., 119, 025103 (2016).
  15. [70] Y. Orikasa, Y. Gogyo, H. Yamashige, M. Katayama, K.Z. Chen, T. Mori, K. Yamamoto, T. Masese, Y. Inada, T. Ohta, Z. Siroma, S. Kato, H. Kinoshita, H. Arai, Z. Ogumi, Y. Uchimoto, “Ionic Conduction in Lithium Ion Battery Composite Electrode Governs Cross-sectional Reaction Distribution”, Sci. Rep., 6, 26382 (2016).
  16. [69] K. Ohara, A. Mitsui, M. Mori, Y. Onodera, S. Shiotani, Y. Koyama, Y. Orikasa, M. Murakami, K. Shimoda, K. Mori, T. Fukunaga, H. Arai, Y. Uchimoto, Z. Ogumi, “Structural and electronic features of binary Li2S-P2S5 glasses”, Sci. Rep., 6, 21302 (2016).
  17. [68] T. Mori, Y. Orikasa, K. Nakanishi, C. Kezheng, M. Hattori, T. Ohta, Y. Uchimoto, “Discharge/charge reaction mechanisms of FeS2 cathode material for aluminum rechargeable batteries at 55°C”, J. Power Sources, 313, 9-14 (2016).
  18. [67] T. Mori, T. Masese, Y. Orikasa, Z.D. Huang, T. Okado, J. Kim, Y. Uchimoto, “Anti-site mixing governs the electrochemical performances of olivine-type MgMnSiO4 cathodes for rechargeable magnesium batteries”, Phys. Chem. Chem. Phys., 18, 13524-13529 (2016).
  19. [66] T. Minato, H. Kawaura, M. Hirayama, S. Taminato, K. Suzuki, N.L. Yamada, H. Sugaya, K. Yamamoto, K. Nakanishi, Y. Orikasa, H. Tanida, R. Kanno, H. Arai, Y. Uchimoto, Z. Ogumi, “Dynamic Behavior at the Interface between Lithium Cobalt Oxide and an Organic Electrolyte Monitored by Neutron Reflectivity Measurements”, J. Phys. Chem. C, 120, 20082-20088 (2016).
  20. [65] T. Matsuyama, M. Deguchi, K. Mitsuhara, T. Ohta, T. Mori, Y. Orikasa, Y. Uchimoto, Y. Kowada, A. Hayashi, M. Tatsumisago, “Structure analyses using X-ray photoelectron spectroscopy and X-ray absorption near edge structure for amorphous MS3 (M: Ti, Mo) electrodes in all-solid-state lithium batteries”, J. Power Sources, 313, 104-111 (2016).
  21. [64] J. Maruyama, T. Hasegawa, S. Iwasaki, T. Fukuhara, Y. Orikasa, Y. Uchimoto, “Carbonaceous thin film coating with Fe-N-4 site for enhancement of dioxovanadium ion reduction”, J. Power Sources, 324, 521-527 (2016).
  22. [63] D. Kan, Y. Orikasa, K. Nitta, H. Tanida, R. Kurosaki, T. Nishimura, T. Sasaki, H.C. Guo, Y. Ozaki, Y. Uchimoto, Y. Shimakawa, “Overpotential-Induced Introduction of Oxygen Vacancy in La0.67Sr0.33MnO3 Surface and Its Impact on Oxygen Reduction Reaction Catalytic Activity in Alkaline Solution”, J. Phys. Chem. C, 120, 6006-6010 (2016).
  23. [62] B. Barbiellini, K. Suzuki, Y. Orikasa, S. Kaprzyk, M. Itou, K. Yamamoto, Y.J. Wang, H. Hafiz, R. Yamada, Y. Uchimoto, A. Bansil, Y. Sakurai, H. Sakurai, “Identifying a descriptor for d-orbital delocalization in cathodes of Li batteries based on x-ray Compton scattering”, Appl. Phys. Lett., 109, (2016).
  24. [61] Y. Orikasa, “Hierarchical Spatiotemporal Analyses of Reactions Using Synchrotron Radiation and the Design of Next-Generation Energy Conversion Devices”, Electrochemistry, 83, 695-700 (2015).
  25. [60] R. Gonzalez-Arrabal, M. Panizo-Laiz, K. Fujita, K. Mima, A. Yamazaki, T. Kamiya, Y. Orikasa, Y. Uchimoto, H. Sawada, C. Okuda, Y. Kato, J.M. Perlado, “Meso-scale characterization of lithium distribution in lithium-ion batteries using ion beam analysis techniques”, J. Power Sources, 299, 587-595 (2015).
  26. [59] J. Maruyama, T. Hasegawa, S. Iwasaki, T. Fukuhara, Y. Orikasa, Y. Uchimoto, “Catalysis of Vanadium Ion Redox Reactions on Carbonaceous Material with Metal-N-4 Sites”, Chemcatchem, 7, 2305-2308 (2015).
  27. [58] H. Komatsu, H. Arai, Y. Koyama, K. Sato, T. Kato, R. Yoshida, H. Murayama, I. Takahashi, Y. Orikasa, K. Fukuda, T. Hirayama, Y. Ikuhara, Y. Ukyo, Y. Uchimoto, Z. Ogumi, “Solid Solution Domains at Phase Transition Front of LixNi0.5Mn1.5O4”, Adv. Energy Mater., 5, 1500638 (2015).
  28. [57] T. Masese, C. Tassel, Y. Orikasa, Y. Koyama, H. Arai, N. Hayashi, J. Kim, T. Mori, K. Yamamoto, Y. Kobayashi, H. Kageyama, Z. Ogumi, Y. Uchimoto, “Crystal Structural Changes and Charge Compensation Mechanism during Two Lithium Extraction/Insertion between Li2FeSiO4 and FeSiO4”, J. Phys. Chem. C, 119, 10206-10211 (2015).
  29. [56] D. Takamatsu, Y. Orikasa, S. Mori, T. Nakatsutsumi, K. Yamamoto, Y. Koyama, T. Minato, T. Hirano, H. Tanida, H. Arai, Y. Uchimoto, Z. Ogumi, “Effect of an Electrolyte Additive of Vinylene Carbonate on the Electronic Structure at the Surface of a Lithium Cobalt Oxide Electrode under Battery Operating Conditions”, J. Phys. Chem. C, 119, 9791-9797 (2015).
  30. [55] K. Suzuki, B. Barbiellini, Y. Orikasa, N. Go, H. Sakurai, S. Kaprzyk, M. Itou, K. Yamamoto, Y. Uchimoto, Y. Wang, H. Hafiz, A. Bansil, Y. Sakurai, “Extracting the Redox Orbitals in Li Battery Materials with High-Resolution X-Ray Compton Scattering Spectroscopy”, Phys. Rev. Lett., 114, 087401 (2015).
  31. [54] M. Itou, Y. Orikasa, Y. Gogyo, K. Suzuki, H. Sakurai, Y. Uchimoto, Y. Sakurai, “Compton scattering imaging of a working battery using synchrotron high-energy X-rays”, J. Synchrotron Rad., 22, 161-164 (2015).
  32. [53] M. Oishi, C. Yogi, I. Watanabe, T. Ohta, Y. Orikasa, Y. Uchimoto, Z. Ogumi, “Direct observation of reversible charge compensation by oxygen ion in Li-rich manganese layered oxide positive electrode material, Li1.16Ni0.15Co0.19Mn0.50O2”, J. Power Sources, 276, 89-94 (2015).
  33. [52] Z.-D. Huang, T. Masese, Y. Orikasa, T. Mori, K. Yamamoto, “Vanadium phosphate as a promising high-voltage magnesium ion (de)-intercalation cathode host”, RSC Adv., 5, 8598-8603 (2015).
  34. [51] K. Ohara, Y. Umebayashi, T. Ichitsubo, K. Matsumoto, R. Hagiwara, H. Arai, M. Mori, Y. Orikasa, S. Okamoto, M. Oishi, Y. Aiso, T. Nohira, Y. Uchimoto, Z. Ogumi, E. Matsubara, “Structural modification by adding Li cations into Mg/Cs-TFSA molten salt facilitating Mg electrodeposition”, RSC Adv., 5, 3036 – 3069 (2015).
  35. [50] Y. Orikasa, T. Ina, K Yamamoto, T. Nakao, A. Mineshige, K. Amezawa, T. Kawada, H. Tanida, T. Uruga, Y. Uchimoto, “Direct Observation of Rate Determining Step for Nd2NiO4+ SOFC Cathode Reaction by operando Electrochemical XAS”, Electrochemistry, 82,897-900 (2014).
  36. [49] K. Yamamoto, Y. Orikasa, D. Takamatsu, Y. Koyama, S. Mori, T. Masese, T. Mori, T. Minato, H. Tanida, T. Uruga, Z. Ogumi, Y. Uchimoto, “Stabilization of the Electronic Structure at the Cathode/Electrolyte Interface via MgO Ultra-thin Layer during Lithium-ions Insertion/Extraction” , Electrochemistry, 82,891-896 (2014).
  37. [48] T. Ina, Y. Orikasa, T. Masese, T. Nakao, A. Mineshige, K. Amezawa, H. Tanida, T. Uruga, Y. Uchimoto, “Relationship between Local Structure and Oxide Ionic Diffusion of Nd2NiO4+ with K2NiF4 Structure”, Electrochemistry, 82,875-879 (2014).
  38. [47] Y. Orikasa, D. Takamatsu, K. Yamamoto, Y. Koyama, S. Mori, T. Masese, T. Mori, T. Minato, H. Tanida, T. Uruga, Z. Ogumi, Y. Uchimoto, “Origin of Surface Coating Effect for MgO on LiCoO2 to Improve the Interfacial Reaction between Electrode and Electrolyte”, Adv. Mater. Interfaces, 1, 1400195 (2014).
  39. [46] K. Nakanishi, D. Kato, H. Arai, H. Tanida, T. Mori, Y. Orikasa, Y. Uchimoto, T. Ohta, Z. Ogumi, “Novel spectro-electrochemical cell for in situ/ operando observation of common composite electrode with liquid electrolyte by X-ray absorption spectroscopy in the tender X-ray region”, Rev. Sci. Instrum., 85, 084103 (2014).
  40. [45] Y. Orikasa, T. Masese, Y. Koyama, T. Mori, M. Hattori, K. Yamamoto, T. Okado, Z.-D. Huang, T. Minato, C. Tassel, J. Kim, Y. Kobayashi, T. Abe, H. Kageyama, Y. Uchimoto, “High energy density rechargeable magnesium battery using earth-abundant and non-toxic elements”, Sci. Rep., 4, 5622 (2014).
  41. [44] J. Maruyama, T. Ioroi, T. Hasegawa, T. Mori, Y. Orikasa, Y. Uchimoto, “Carbonaceous Hydrogen-Evolution Catalyst Containing Cobalt Surrounded by a Tuned Local Structure”, ChemCatChem, 6, 2197-2200 (2014).
  42. [43] K. Kisu, M. Iijima, E. Iwama, M. Saito, Y. Orikasa, W. Naoi, K. Naoi, “The origin of anomalous large reversible capacity for SnO2 conversion reaction”, J. Mater. Chem. A, 2, 13058-13068 (2014).
  43. [42] Z.-D. Huang, T. Masese, Y. Orikasa, T. Mori, T. Minato, C. Tassel, Y. Kobayashi, H. Kageyama, Y. Uchimoto, “MgFePO4F as a feasible cathode material for magnesium batteries”, J. Mater. Chem. A, 2, 11578-11582 (2014).
  44. [41] D. Yonekura, E. Iwama, N. Ota, M. Muramatsu, M. Saito, Y. Orikasa, W. Naoi, K. Naoi, “Progress of the conversion reaction of Mn3O4 particles as a function of the depth of discharge”, Phys. Chem. Chem. Phys., 16, 6027-6032 (2014).
  45. [40] K. Yamamoto, T. Minato, S. Mori, D. Takamatsu, Y. Orikasa, H. Tanida, K. Nakanishi, H. Murayama, T. Masese, T. Mori, H. Arai, Y. Koyama, Z. Ogumi, Y. Uchimoto, “Improved Cyclic Performance of Lithium-Ion Batteries: An Investigation of Cathode/Electrolyte Interface via In Situ Total-Reflection Fluorescence X-ray Absorption Spectroscopy”, J. Phys. Chem. C, 118, 9538-9543 (2014).
  46. [39] D. Takamatsu, Y. Koyama, Y. Orikasa, S. Mori, T. Nakatsutsumi, T. Hirano, H. Tanida, H. Arai, Y. Uchimoto, Z. Ogumi, “Electrochemical and Spectroscopic Characterization of LiCoO2 Thin-Film as Model Electrode”, J. Electrochem. Soc., 161, A1447-A1452 (2014).
  47. [38] Y. Orikasa, E.J. Crumlin, S. Sako, K. Amezawa, T. Uruga, M.D. Biegalski, H.M. Christen, Y. Uchimoto, Y. Shao-Horn, “Surface Strontium Segregation of Solid Oxide Fuel Cell Cathodes Proved by In Situ Depth-Resolved X-ray Absorption Spectroscopy”, ECS Electrochem. Lett., 3, F23-F26 (2014).
  48. [37] T. Masese, Y. Orikasa, C. Tassel, J. Kim, T. Minato, H. Arai, T. Mori, K. Yamamoto, Y. Kobayashi, H. Kageyama, Z. Ogumi, Y. Uchimoto, “Relationship between Phase Transition Involving Cationic Exchange and Charge-Discharge Rate in Li2FeSiO4”, Chem. Mater., 26, 1380-1384 (2014).
  49. [36] T. Masese, Y. Orikasa, T. Mori, K. Yamamoto, T. Ina, T. Minato, K. Nakanishi, T. Ohta, C. Tassel, Y. Kobayashi, H. Kageyama, H. Arai, Z. Ogumi, Y. Uchimoto, “Local structural change in Li2FeSiO4 polyanion cathode material during initial cycling”, Solid State Ionics, 262, 110-114 (2014).
  50. [35] H. Tanida, K. Fukuda, H. Murayama, Y. Orikasa, H. Arai, Y. Uchimoto, E. Matsubara, T. Uruga, K. Takeshita, S. Takahashi, M. Sano, H. Aoyagi, A. Watanabe, N. Nariyama, H. Ohashi, H. Yumoto, T. Koyama, Y. Senba, T. Takeuchi, Y. Furukawa, T. Ohata, T. Matsushita, Y. Ishizawa, T. Kudo, H. Kimura, H. Yamazaki, T. Tanaka, T. Bizen, T. Seike, S. Goto, H. Ohno, M. Takata, H. Kitamura, T. Ishikawa, T. Ohta, Z. Ogumi, “RISING beamline (BL28XU) for rechargeable battery analysis”, J. Synchrotron Rad., 21, 268-272 (2014).
  51. [34] H. Kawaura, D. Takamatsu, S. Mori, Y. Orikasa, H. Sugaya, H. Murayama, K. Nakanishi, H. Tanida, Y. Koyama, H. Arai, Y. Uchimoto, Z. Ogumi, “High potential durability of LiNi0.5Mn1.5O4 electrodes studied by surface sensitive X-ray absorption spectroscopy”, J. Power Sources, 245, 816-821 (2014).
  52. [33] C. Y. Chen, K. Matsumoto, T. Nohira, R. Hagiwara, Y. Orikasa, Y. Uchimoto, “Pyrophosphate Na2FeP2O7 as a low-cost and high-performance positive electrode material for sodium secondary batteries utilizing an inorganic ionic liquid”, J. Power Sources, 246, 783-787 (2014).
  53. [32] Z. D. Huang, Y. Orikasa, T. Masese, K. Yamamoto, T. Mori, T. Minato, Y. Uchimoto, “A novel cationic-ordering fluoro-polyanionic cathode LiV0.5Fe0.5PO4F and its single phase Li+ insertion/extraction behaviour”, RSC Adv., 3, 22935-22939 (2013).
  54. [31] Y. Orikasa, T. Maeda, Y. Koyama, H. Murayama, K. Fukuda, H. Tanida, H. Arai, E. Matsubara, Y. Uchimoto, Z. Ogumi, “Transient Phase Change in Two Phase Reaction between LiFePO4 and FePO4 under Battery Operation”, Chem. Mater., 25, 1032-1039 (2013).
  55. [30] Y. Orikasa, T. Maeda, Y. Koyama, H. Murayama, K. Fukuda, H. Tanida, H. Arai, E. Matsubara, Y. Uchimoto, Z. Ogumi, “Direct Observation of a Metastable Crystal Phase of LixFePO4 under Electrochemical Phase Transition”, J. Am. Chem. Soc., 135, 5497-5500 (2013).
  56. [29] X. M. Wang, Y. Orikasa, Y. Takesue, H. Inoue, M. Nakamura, T. Minato, N. Hoshi, Y. Uchimoto, “Quantitating the Lattice Strain Dependence of Monolayer Pt Shell Activity toward Oxygen Reduction”, J. Am. Chem. Soc., 135, 5938-5941 (2013).
  57. [28] H. Tanida, H. Yamashige, Y. Orikasa, T. Fujimoto, M. Oishi, H. Murayama, H. Arai, M. Katayama, Y. Inada, T. Ohta, Y. Uchimoto, Z. Ogumi, “In situ two-dimensional micro-imaging XAFS with CCD detector”, J. Phys.: Conf. Ser., 430, 012021 (2013)
  58. [27] T. Takeguchi, T. Yamanaka, H. Takahashi, H. Watanabe, T. Kuroki, H. Nakanishi, Y. Orikasa, Y. Uchimoto, H. Takano, N. Ohguri, M. Matsuda, T. Murota, K. Uosaki, W. Ueda, “Layered Perovskite Oxide: A Reversible Air Electrode for Oxygen Evolution/Reduction in Rechargeable Metal-Air Batteries”, J. Am. Chem. Soc., 135, 11125-11130 (2013).
  59. [26] D. Takamatsu, S. Mori, Y. Orikasa, T. Nakatsutsumi, Y. Koyama, H. Tanida, H. Arai, Y. Uchimoto, Z. Ogumi, “Effects of ZrO2 Coating on LiCoO2 Thin-Film Electrode Studied by In Situ X-ray Absorption Spectroscopy”, J. Electrochem. Soc., 160, A3054-A3060 (2013).
  60. [25] Y. Orikasa, T. Maeda, Y. Koyama, T. Minato, H. Murayama, K. Fukuda, H. Tanida, H. Arai, E. Matsubara, Y. Uchimoto, Z. Ogumi, “Phase Transition Analysis between LiFePO4 and FePO4 by In-Situ Time-Resolved X-ray Absorption and X-ray Diffraction”, J. Electrochem. Soc., 160, A3061-A3065 (2013).
  61. [24] M. Oishi, T. Fujimoto, Y. Takanashi, Y. Orikasa, A. Kawamura, T. Ina, H. Yamashige, D. Takamatsu, K. Sato, H. Murayama, H. Tanida, H. Arai, H. Ishii, C. Yogi, I. Watanabe, T. Ohta, A. Mineshige, Y. Uchimoto, Z. Ogumi, “Charge compensation mechanisms in Li1.16Ni0.15Co0.19Mn0.50O2 positive electrode material for Li-ion batteries analyzed by a combination of hard and soft X-ray absorption near edge structure”, J. Power Sources, 222, 45-51 (2013).
  62. [23] H. Arai, K. Sato, Y. Orikasa, H. Murayama, I. Takahashi, Y. Koyama, Y. Uchimoto, Z. Ogumi, “Phase transition kinetics of LiNi0.5Mn1.5O4 electrodes studied by in situ X-ray absorption near-edge structure and X-ray diffraction analysis”, J Mater. Chem. A, 1, 10442-10449 (2013).
  63. [22] D. Takamatsu, Y. Koyama, Y. Orikasa, S. Mori, T. Nakatsutsumi, T. Hirano, H. Tanida, H. Arai, Y. Uchimoto, Z. Ogumi, “First In Situ Observation of the LiCoO2 Electrode/Electrolyte Interface by Total-Reflection X-ray Absorption Spectroscopy”, Angew. Chem. Int. Ed., 51, 11597-11601 (2012).
  64. [21] H. Tanida, H. Yamashige, Y. Orikasa, M. Oishi, Y. Takanashi, T. Fujimoto, K. Sato, D. Takamatsu, H. Murayama, H. Arai, E. Matsubara, Y. Uchimoto, Z. Ogumi, “In situ two-dimensional imaging quick-scanning XAFS with pixel array detector”, J. Synchrotron Rad., 18, 919-922 (2011).
  65. [20] Y. Takanashi, Y. Orikasa, M. Mogi, M. Oishi, H. Murayama, K. Sato, H. Yamashige, D. Takamatsu, T. Fujimoto, H. Tanida, H. Arai, T. Ohta, E. Matsubara, Y. Uchimoto, Z. Ogumi, “Thickness estimation of interface films formed on Li1-xCoO2 electrodes by hard X-ray photoelectron spectroscopy”, J. Power Sources, 196, 10679-10685 (2011).
  66. [19] D. Takamatsu, T. Nakatsutsumi, S. Mori, Y. Orikasa, M. Mogi, H. Yamashige, K. Sato, T. Fujimoto, Y. Takanashi, H. Murayama, M. Oishi, H. Tanida, T. Uruga, H. Arai, Y. Uchimoto, Z. Ogumi, “Nanoscale Observation of the Electronic and Local Structures of LiCoO2 Thin Film Electrode by Depth-Resolved X-ray Absorption Spectroscopy”, J. Phys. Chem. Lett., 2, 2511-2514 (2011).
  67. [18] Y. Orikasa, T. Nakao, M. Oishi, T. Ina, A. Mineshige, K. Amezawa, H. Arai, Z. Ogumi, Y. Uchimoto, “Local structural analysis for oxide ion transport in La0.6Sr0.4FeO3-d cathodes”, J. Mater. Chem., 21, 14013-14019 (2011).
  68. [17] Y. Orikasa, T. Ina, T. Nakao, A. Mineshige, K. Amezawa, M. Oishi, H. Arai, Z. Ogumi, Y. Uchimoto, “An X-ray absorption spectroscopic study on mixed conductive La0.6Sr0.4Co0.8Fe0.2O3-d cathodes. I. Electrical conductivity and electronic structure”, Phys. Chem. Chem. Phys., 13, 16637-16643 (2011).
  69. [16] Y. Orikasa, T. Ina, T. Nakao, A. Mineshige, K. Amezawa, M. Oishi, H. Arai, Z. Ogumi, Y. Uchimoto, “X-ray Absorption Spectroscopic Study on La0.6Sr0.4CoO3-d Cathode Materials Related with Oxygen Vacancy Formation”, J. Phys. Chem. C, 115, 16433-16438 (2011).
  70. [15] T. Okumura, T. Nakatsutsumi, T. Ina, Y. Orikasa, H. Arai, T. Fukutsuka, Y. Iriyama, T. Uruga, H. Tanida, Y. Uchimoto, Z. Ogumi, “Depth-resolved X-ray absorption spectroscopic study on nanoscale observation of the electrode-solid electrolyte interface for all solid state lithium ion batteries”, J. Mater. Chem., 21, 10051-10060 (2011).
  71. [14] T. Okumura, T. Ina, Y. Orikasa, H. Arai, Y. Uchimoto, Z. Ogumi, “Effect of average and local structures on lithium ion conductivity in La2/3-xLi3xTiO3”, J. Mater. Chem., 21, 10195-10205 (2011).
  72. [13] T. Okumura, T. Ina, Y. Orikasa, H. Arai, Y. Uchimoto, Z. Ogumi, “Improvement of lithium ion conductivity for A-site disordered lithium lanthanum titanate perovskite oxides by fluoride ion substitution”, J. Mater. Chem., 21, 10061-10068 (2011).
  73. [12] T. Okumura, T. Fukutsuka, A. Yanagihara, Y. Orikasa, H. Arai, Z. Ogumi, Y. Uchimoto, “Electronic and local structural changes with lithium-ion insertion in TiO2-B: X-ray absorption spectroscopy study”, J. Mater. Chem., 21, 15369-15377 (2011).
  74. [11] T. Okumura, T. Fukutsuka, A. Yanagihara, Y. Orikasa, H. Arai, Z. Ogumi, Y. Uchimoto, “Nanosized Effect on Electronic/Local Structures and Specific Lithium-Ion Insertion Property in TiO2-B Nanowires Analyzed by X-ray Absorption Spectroscopy”, Chem. Mater., 23, 3636-3644 (2011).
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  77. [8] J. Maruyama, T. Hasegawa, T. Amano, Y. Muramatsu, E. M. Gullikson, Y. Orikasa, Y. Uchimoto, “Pore Development in Carbonized Hemoglobin by Concurrently Generated MgO Template for Activity Enhancement as Fuel Cell Cathode Catalyst”, ACS Applied Materials & Interfaces, 3, 4837-4843 (2011).
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  81. [4] T. Ina, Y. Orikasa, T. Fukutsuka, K. Amezawa, T. Kawada, Y. Uchimoto, “Studies on Defect Structures of (La,Sr)2NiO4 by Using X-ray Absorption Spectroscopy”, ECS Transactions, 13, 195-200 (2008).
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  83. [2] Y. Orikasa, N. Hayashi,S. Muranaka, “Effects of oxygen gas pressure on structural, electrical, and thermoelectric properties of (ZnO)3In2O3 thin films deposited by rf magnetron sputtering”, J. Appl. Phys., 103, 113703 (2007).
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