Electrochromic Characteristics of a Nickel Borate Thin Film Investigated by In Situ XAFS and UV/vis Spectroscopy
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- YOSHIDA Masaaki
- Department of Chemistry, Keio University
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- IIDA Tsuyoshi
- Department of Chemistry, Keio University
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- MINEO Takehiro
- Department of Chemistry, Keio University
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- YOMOGIDA Takumi
- Department of Chemistry, Keio University
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- NITTA Kiyofumi
- Japan Synchrotron Radiation Research Institute
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- KATO Kazuo
- Japan Synchrotron Radiation Research Institute
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- NITANI Hiroaki
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization
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- ABE Hitoshi
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization
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- URUGA Tomoya
- Japan Synchrotron Radiation Research Institute
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- KONDOH Hiroshi
- Department of Chemistry, Keio University
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The electrochromic transition of a nickel borate thin film between colorless and brown was examined by means of in situ XAFS and UV/vis spectroscopy. The XAFS spectra showed that the average valence state of the nickel species in the film changed from +2.1 to +3.8 following the application of an electrode potential. Additionally, a broad peak at 700 nm was observed during in situ UV/vis absorption measurements on the application of a positive potential. These results suggest that the nickel borate film reversibly forms a NiOOH structure with a domain size of several nanometers during the electrochromic reaction.
収録刊行物
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- Electrochemistry
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Electrochemistry 82 (5), 355-358, 2014
公益社団法人 電気化学会
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詳細情報 詳細情報について
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- CRID
- 1390001206499801600
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- NII論文ID
- 130004562457
- 40020051352
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- NII書誌ID
- AN00151637
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- ISSN
- 21862451
- 13443542
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- NDL書誌ID
- 025428460
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 使用可