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In-situ Raman Spectroscopy for the Passive Oxide Film on Iron in Neutral Borate Solution

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タイトル: In-situ Raman Spectroscopy for the Passive Oxide Film on Iron in Neutral Borate Solution
著者: Ohtsuka, Toshiaki 著作を一覧する
Taneda, Kento 著作を一覧する
発行日: 2009年
出版者: The Electrochemical Society
誌名: ECS Transactions
巻: 16
号: 52
開始ページ: 125
終了ページ: 131
出版社 DOI: 10.1149/1.3229961
抄録: In-situ Raman spectra of the passive oxide film in neutral borate solution at pH 8.4 was measured without any enhancement such as surface enhanced Raman scattering or resonance Raman scattering. To measure the Raman spectra of the surface thin film on the electrode, we introduced a confocal collection system to reject the scattering signal from the electrolytes surrounding the surface in front of the spectrometer. The background signal is still high, and it is more intensive by 100 times than the Raman signal from the passive film. The difference Raman signal between the surfaces of the passivated iron and the reduced bare iron reveals a peak at about 670 cm-1. When we measured the passivated iron surface soon after transfer from the electrolytes to air, we observed another broad and faint peak at 320 cm-1. From these peaks, we assume that the passive oxide film on iron is composed of Fe3O4 and γ-Fe2O3.
Rights: © The Electrochemical Society, Inc. 2009. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in ECS Transactions, Volume 16, Issue 52, pp. 125-131, 2009.
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 大塚 俊明


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