喷的水微滴能够自发产生过氧化
Masoud A Mehrgardi1,2, Mohammad Mofidfar1, Richard N Zare1
1Department of Chemistry, Stanford University, Stanford, California 94305 United States.
Journal of the American Chemical Society
|April 22, 2022
概括
水微滴可以独立产生过氧化 (H2O2). 这一过程由氧气增强,这表明H2O2生产的新型水气相互作用.
科学领域:
- 物理化学
- 水性化学
- 纳米技术
背景情况:
- 了解水在动态条件下的内在特性至关重要.
- 研究水系统中反应性氧物种的形成是一个活跃的研究领域.
研究的目的:
- 确定水微滴是否可以自主产生过氧化 (H2O2).
- 研究不同气体对水微滴中的H2O2形成的影响.
主要方法:
- 超纯的水被原子化成微滴,
- 使用加湿的气 (N2) 填充含有微滴的腔室.
- 用核磁共振 (NMR) 光谱和光谱测定进行了分析.
主要成果:
- 在水中检测到的过氧化 (H2O2) 度为0. 31.5μM.
- 通过NMR光谱和光谱测定证实了H2O2的形成.
- 用压缩空气或氧气 (O2) 取代N2可显著增加H2O2度.
结论:
- 当水溶解成微滴时,它具有产生过氧化的内在能力.
- 气体与表面的相互作用,特别是与氧气的相互作用,增强了水中微滴中的H2O2产生.
- 这项研究揭示了从水中自发生成H2O2的新途径.
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