在下降液膜等离子反应器中探测时间分辨率等离子驱动溶液电化学:确定HO2-作为等离子衍生的还原剂
Tanubhav Srivastava1, Subhajyoti Chaudhuri2, Christopher C Rich3
1Department of Mechanical Engineering, University of Minnesota, 111 Church St. SE, Minneapolis, Minnesota 55455, USA.
The Journal of chemical physics
|March 4, 2024
概括
这项研究揭示了落膜反应堆中等离子体诱导的新液体化学. 高pH条件出乎意料地增强了还原反应,这表明了等离子体-液体相互作用和无电极电化学的新途径.
科学领域:
- 等离子体科学与工程 等离子体科学与工程
- 物理化学 物理化学
- 化学反应工程 化学反应工程
背景情况:
- 等离子体-液体相互作用对于许多应用至关重要.
- 了解等离子体-液体界面的反应过程是关键.
- 目前对等离子体诱导液相化学的知识尚不完整.
研究的目的:
- 在落下液膜等离子反应器中研究时间依赖的氧化还原活性.
- 探索等离子体诱导的液相化学,特别是在高pH下.
- 为了证明液膜反应器在发现新的等离子体界面化学中的实用性.
主要方法:
- 使用掉落液膜等离子反应器进行现场光学吸收测量.
- 测量了铁酸/铁酸氧化还原活性的时间依赖性.
- 进行了格式分解的现场测量.
主要成果:
- 测量和扩散有限的格式分解之间有很好的一致性,除了薄膜中的高pH.
- 发现高pH值可以促进有利于减少的环境.
- 根据薄膜厚度和时间尺度,确定了影响氧化还原反应的三个主要过程.
结论:
- 高pH值使得以前未被探索的血诱导液相化学通过长寿命的活性物种,如HO2-.
- 落下液体薄膜反应器对于发现新的等离子体界面化学是有效的.
- 大气等离子体为无电极电化学提供了潜力.
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