小西健久

研究者氏名	小西健久
	コニシタケヒサ
URL
所属	千葉大学
部署	大学院理学研究院化学研究部門基盤物質化学講座
職名	准教授
学位	博士(理学)(東京大学)
科研費研究者番号	40302525
J-Global ID	202101009352139034

論文

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Quantitative analysis of energy loss processes for the core level intensities in hard X-ray photoemission

Takehisa Konishi Shigenori Ueda Toyohiko Kinoshita

Journal of Electron Spectroscopy and Related Phenomena 264 2023年4月 [査読有り]

Hard X-ray Photoemission spectra (HAXPES) for Al films on Si substrates were measured, and thickness dependence of the Al and Si core level spectra was obtained. A quantitative analysis of the plasmon-loss processes and the continuous background w...

Element-ratio dependence of the 5d-states of Au and Pt in solid-solution-type Au–Pt alloy nanoparticles studied by X-ray absorption spectroscopy and density functional theory

Takeshi Morita Shunki Ogawa Tomotaka Kayama Wataru Ono Shinya Tamura Kazuki Umeda Tsubasa Iwamatsu Nobuo Uehara Takehisa Konishi

Physical Chemistry Chemical Physics 2023年 [査読有り]

Solid-solution-type Au–Pt alloy nanoparticles (NPs) were prepared from the nanoclusters of each metal using the polymer-conjugated fusion growth method. The elemental mapping analysis showed that the mixing state of the...

Hybridization-Gap Formation and Superconductivity in the Pressure-Induced Semimetallic Phase of the Excitonic Insulator Ta2NiSe5

Kazuyuki Matsubayashi Hidekazu Okamura Takashi Mizokawa Naoyuki Katayama Akitoshi Nakano Hiroshi Sawa Tatsuya Kaneko Tatsuya Toriyama Takehisa Konishi Yukinori Ohta Hiroto Arima Rina Yamanaka Akihiko Hisada Taku Okada Yuka Ikemoto Taro Moriwaki Koji Munakata Akiko Nakao Minoru Nohara Yangfan Lu Hidenori Takagi Yoshiya Uwatoko

Journal of the Physical Society of Japan 90(7) 74706-74706 2021年7月 [査読有り]

The excitonic insulator Ta2NiSe5 experiences a first-order structural transition under pressure from rippled to flat layer-structure at Ps ~ 3 GPa, which drives the system from an almost zero-gap semiconductor to a semimetal. The pressure-induced ...

Efficient and Selective Interplay Revealed: CO 2 Reduction to CO over ZrO 2 by Light with Further Reduction to Methane over Ni 0 by Heat Converted from Light

Hongwei Zhang Takaomi Itoi Takehisa Konishi Yasuo Izumi

Angewandte Chemie 133(16) 9127-9136 2021年4月 [査読有り]

Efficient and Selective Interplay Revealed: CO 2 Reduction to CO over ZrO 2 by Light with Further Reduction to Methane over Ni 0 by Heat Converted from Light

Hongwei Zhang Takaomi Itoi Takehisa Konishi Yasuo Izumi

Angewandte Chemie International Edition 60(16) 9045-9054 2021年4月 [査読有り]

MISC

Analytical Methods for Iodine and Iodides

Hirofumi Kanoh Takehisa Konishi

Iodine Chemistry and Applications 9781118466292 15-23 2014年11月

Iodine is one of the essential elements for human nutrition. Iodine measurement in biological samples is carried out almost exclusively by one of two methods: One is a kinetic spectrophotometric method called the Sandell-Kolthoff reaction based on...

EXAFS study of electrolytic nanosolution confined in interstitial nanospaces of single-wall carbon nanohorn colloids

T. Ohkubo Y. Hattori H. Kanoh T. Konishi H. Sakai M. Abe D. Kasuya M. Yudasaka S. Iijima T. Fujikawa K. Kaneko

Physica Scripta T T115 685-687 2005年 [査読有り]

The structure of RbBr aqueous solution confined in the interstitial nanospaces of single-wall carbon nanohorn (SWNH) assemblies was elucidated by using extended x-ray absorption fine structure (EXAFS) technique. The decrease of hydration number ar...

Structure of ultra-thin RbBr "solution" in carbon nanospace

T Ohkubo H Kanoh Y Hattori T Konishi K Kaneko

NANOTECHNOLOGY IN MESOSTRUCTURED MATERIALS 146 61-64 2003年 [査読有り]

The hydration structure of RbBr electrolytic solution confined in carbon nanospaces was determined with EXAFS technique and related analyses. The analytical results indicate that the electrolytes confined in hydrophobic nanospaces have an incomple...

28a-YC-7 円偏光放射光を用いた強磁性酸化物SrRuO_3の磁気円2色性

岡本淳宮内洋司宮原恒〓武田保雄高野幹夫辻岡俊之藤岡健吾小西健久溝川貴司藤森淳長谷泉中島伸夫小出常晴

日本物理学会講演概要集 52(0) 184-184 1997年

SrRuO_3の電子状態II

岡本淳宮内洋司宮原恒〓武田保雄高野幹夫辻岡俊之藤岡健吾小西健久溝川貴司藤森淳長谷泉中島伸夫小出常晴

日本物理学会講演概要集. 秋の分科会 1996(0) 426-426 1996年