Depth-resolved potentiometric detection of active species near the surface of an aqueous solution under atmospheric pressure plasma

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-06-14 DOI:10.1093/chemle/upae122

Kai Kubota, Yuko Yokoyama, Naoya Nishi, T. Sakka

引用次数: 0

Abstract

Near the plasma/water interface highly active species such as ·OH are formed, providing unique reaction fields. To develop interfacial reaction systems that utilize them, it is important to conduct in-situ quantitative analysis for their supply and consumption kinetics. In this study, depth- and time-resolved in-situ potentiometric measurements were performed to detect redox-active species, such as OH radicals. A Pt electrode employed as an indicator electrode showed a large potential shift to 1.5 V vs SHE only when the depth is less than 10 µm, suggesting the presence of ·OH.

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常压等离子体下水溶液表面附近活性物种的深度分辨电位计检测

在等离子体/水界面附近会形成高活性物质（如 -OH），从而提供独特的反应场。要开发利用这些物质的界面反应系统，就必须对其供应和消耗动力学进行原位定量分析。本研究采用深度和时间分辨原位电位测量法来检测氧化还原活性物种，如 OH 自由基。作为指示电极的铂电极只有在深度小于 10 µm 时才会出现较大的电位偏移，达到 1.5 V vs SHE，这表明存在-OH。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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