Ag K- and L<sub>3</sub>-edge XAFS study on Ag species in Ag/Ga<sub>2</sub>O<sub>3</sub>photocatalysts
書誌事項
- タイトル別名
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- Ag K- and L3-edge XAFS study on Ag species in Ag/Ga2O3photocatalysts
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説明
Ag loaded Ga2O3 (Ag/Ga2O3) shows photocatalytic activity for reduction of CO2 with water. Ag L3-edge XANES and K-edge EXAFS spectra were measured for various Ag/Ga2O3 samples, which suggested that structural and chemical states of Ag species varied with the loading amount of Ag and the preparation method. The Ag species were metallic Ag particles with an AgGaO2-like interface structure in the sample with high loading amount of Ag while predominantly Ag metal clusters in the sample with low loading amount of Ag. The XANES feature just above the edge represented the interaction between the Ag species and the Ga2O3 surface, showing that the Ag metal clusters had more electrons in the d-orbitals by interacting with the Ga2O3 surface, which would contribute the high photocatalytic activity.
収録刊行物
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- Journal of Physics: Conference Series
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Journal of Physics: Conference Series 712 012074-, 2016-05
IOP Publishing
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詳細情報 詳細情報について
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- CRID
- 1050001335849114880
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- NII論文ID
- 120006305908
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- NII書誌ID
- AA12839617
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- ISSN
- 17426588
- 17426596
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- HANDLE
- 2433/225083
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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