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KAKEN_18K19064seika.pdf
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:621.9 KB
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:May 17, 2022 |
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Total downloads since May 17, 2022 : 250
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| Title |
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極端軟X線大気圧表面XAFSの開発と大気圧下触媒反応のオペランド観測への展開
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キョクタン ナンXセン タイキアツ ヒョウメン XAFS ノ カイハツ ト タイキアツカ ショクバイ ハンノウ ノ オペランド カンソク エノ テンカイ
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Kyokutan nanXsen taikiatsu hyōmen XAFS no kaihatsu to taikiatsuka shokubai hannō no operando kansoku eno tenkai
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Development of ambient-pressure ultrasoft x-ray surface XAFS and application to operando observation of catalytic reactions under ambient pressure conditions
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近藤, 寛
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コンドウ, ヒロシ
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Kondō, Hiroshi
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慶應義塾大学・理工学部 (矢上) ・教授
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Research team head
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科研費研究者番号 : 80302800
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2021
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科学研究費補助金研究成果報告書
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2020
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極端軟Ｘ線表面XAFS法は表面に存在する炭素・窒素・酸素などの軽元素やチタンや鉄などの第4周期金属の局所的な構造や電子状態を調べることができる有用な手法であるが、大気圧下での測定は困難とされている。本研究では、転換電子収量法による大気圧下での極端軟Ｘ線XAFSの測定ができるようになることを目指し、簡便に大気圧極端軟Ｘ線表面XAFSを測定することができる装置を開発することができた。さらに本手法をいくつかの材料の大気圧下測定に応用した。
Although the ultrasoft x-ray surface XAFS is a useful technique which enables us to obtain information on local geometric and electronic structures of surface species composed of light elements such as carbon, nitrogen and oxygen and the 4th-period metals such as titanium and iron, it has been assumed to be difficult to use this technique under atmospheric conditions.In this study, we aimed to be able to measure ultrasoft x-ray surface XAFS spectra under ambient-pressure conditions based on the conversion electron yield method and successfully developed an apparatus with which we can easily conduct ambient-pressure ultrasoft x-ray surface XAFS measurements.Furthermore we applied this technique to in-situ measurements for several materials under ambient-pressure conditions.
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研究種目 : 挑戦的研究 (萌芽)
研究期間 : 2018～2020
課題番号 : 18K19064
研究分野 : 表面化学
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