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

IF 1.4 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Chemistry Letters Pub Date : 2024-06-14 DOI:10.1093/chemle/upae122

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

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引用次数: 0

摘要

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。

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

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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来源期刊

Chemistry Letters 化学-化学综合

CiteScore

3.00

自引率

6.20%

发文量

260

审稿时长

1.2 months

期刊介绍： Chemistry Letters covers the following topics: -Organic Chemistry- Physical Chemistry- Inorganic Chemistry- Analytical Chemistry- Materials Chemistry- Polymer Chemistry- Supramolecular Chemistry- Organometallic Chemistry- Coordination Chemistry- Biomolecular Chemistry- Natural Products and Medicinal Chemistry- Electrochemistry