KAKENHI (Grants-in-Aid for Scientific Research) -
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Grant number:26249096 2014.4 - 2018.3
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)
Muto Shunsuke, Rusz Jan
Authorship:Principal investigator Grant type:Competitive
Grant amount:\41730000 ( Direct Cost: \32100000 、 Indirect Cost:\9630000 )
In this study we developed state-of-the-art methods that enable physical properties analysis and thier chemical imaging of functional materials at nanometer scale by combining multiple electron spectroscopic methods associated with scanning transmission electron microscopy. The method involves information/statistical methods to process the obtained big size datasets. The methods applied to analyses of environmental, energy, magnetic and biological materials, thereby clarifying the site occupancies and chemical states of dopant elements in manners that the conventional diffraction and microscopic methods have never accessed.
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Exploration of nanostructure - property relationships for materials innovation
Grant number:25106001 2013.6 - 2018.3
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
TANAKA Isao, MATSUNAGA Katsuyuki, SHIBATA Naoya, MUTO Shunsuke, TANIGUCHI Takashi, OHTA Hiromichi, KITAOKA Satoshi, KANNO Ryoji, TAKAKUSAKI Satoru, TSUDA Koji, ADACHI Hirohiko, SAKUMA Taketo, TAKANO Mikio, MORI Hirotaro, HIGUCHI Tomoyuki
Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid)
This group mainly encouraged the collaboration between project members. This group organized international symposiums for publishing our studies, organized many small workshops for accelerating the communication between researchers with different backgrounds, published an international book of our research summary, and encouraged may activities of young researchers. In addition, this group supported the building of a web site and publication of a booklet.
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Development of nanometer scale electronic state analysis methods
Grant number:25106004 2013.6 - 2018.3
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
MUTO SHUNSUKE, OHTSUKA MASAHIRO, Rusz Jan
Authorship:Principal investigator Grant type:Competitive
Grant amount:\150930000 ( Direct Cost: \116100000 、 Indirect Cost:\34830000 )
In the present study we aimed to develop novel methods that enable us to analyze and visualize the localized chemical states, thereby applying them to real materials analysis, using transmission electron microscopy and associated spectroscopic methods.
In particular, we have established the scheme where a large size of datasets are collected as a function of spatial coordinates or diffraction condition by scanning/rocking a fine-focused electron beam on a sample, followed by applying machine learning techniques to the so-called 'big data' obtained to allows us to extract the embedded chemical states. -
エネルギーフィルタ環境TEM による触媒表面ガス吸着/反応可視化
2013.4 - 2015.2
科学研究費補助金
Authorship:Principal investigator
本研究の目的は,名古屋大学の反応科学超高圧走査透過型電子顕微鏡(RS-HVSTEM)を用いて金属触媒表面のガス反応(吸着,解離など)のナノメートルレベルでのその場可視化を試みることである.次項以下に示すように100Pa 程度のガス圧下で軽元素ガス分子の電子エネルギー損失スペクトル(EELS)は5-20eV の領域に特徴的な微細構造を示すことを我々は見いだした.この大きな強度を持つスペクトルを使ったエネルギーフィルター像によってガス分子を可視化する事を着想した.これまで環境TEM における触媒反応のミクロ可視化としてまさしく待ち望まれてき,
反応活性点の明快な特定とそのダイナミックな可視化という課題に切り込む. -
ナノプローブを用いたS/TEM内インターカレーション過程その場観察の試み
2011.4 - 2013.3
科学研究費補助金
Authorship:Principal investigator
本研究の目的は、TEM用STM測定試料ホルダーを改良し、インターカーレーション反応過程をナノスケールでその場観察・化学状態測定を行うことを試みるものである。その具体的かつ喫緊の要求が高い応用例として次世代リチウムイオン電池正極活物質として期待されているLiFePO4の充放電過程におけるリチウムイオンの移動とそれに伴う構造相転移を透過型電子顕微鏡(TEM)と電子エネルギー損失分光(EELS)によってその場観察し、そのための試料マニピュレ-ションシステムを開発することにある。
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局在水素の電子分光間接イメージング法の開発
2008.4 - 2010.3
科学研究費補助金 挑戦的萌芽研究
武藤俊介
Authorship:Principal investigator
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Pixon型信号処理による微量軽元素の電子状態分析法の開発
2006.4 - 2008.3
科学研究費補助金 萌芽研究,課題番号:17656204
Authorship:Principal investigator
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高エネルギー電子ビームによるチェレンコフ発光を用いた新しいサブナノ領域分析
2003.4 - 2005.3
科学研究費補助金 萌芽研究,課題番号:15656153
Authorship:Principal investigator