血和液体之间的脱接口反应:电荷转移与血中性反应
Paul Rumbach1, Megan Witzke, R Mohan Sankaran
1Department of Aerospace and Mechanical Engineering, University of Notre Dame , Notre Dame, Indiana 46556, United States.
Journal of the American Chemical Society
|October 23, 2013
概括
血与液体的相互作用会产生不同的化学反应. 电解途径产生基本溶液,而中性物种产生酸性化合物,结果取决于背景气体成分.
科学领域:
- 等离子体化学
- 水溶液反应水溶液反应的反应
- 表面放电现象的表面放电现象
背景情况:
- 液体表面的等离子会诱导复杂的化学反应.
- 有两个主要的反应途径:电子启动 (电解) 和中性物种启动.
- 了解这些途径对于控制等离子体驱动化学是至关重要的.
研究的目的:
- 解和量化等离子液体系统中由电子发起的和中性物种发起的反应.
- 研究环境背景气体成分对反应结果的影响.
- 为了阐明导致微塑暴露下水性盐溶液pH值变化的机制.
主要方法:
- 在水 (NaCl) 溶液的表面产生大气压微塑.
- 环境背景气体 (氧气,,空气,) 的系统变化.
- 通过pH值测量和溶液成分分析量化反应途径.
主要成果:
- 电子转移反应 (电解) 产生氧化离子 (OH-),增加基本性.
- 反应性中性物种导致酸 (HNO2),酸 (HNO3) 和过氧化 (H2O2),增加酸度.
- 主要的反应途径 (酸性与基性) 是由背景气体组成直接控制的.
- (N2) 背景气体通过现场氧气 (O2) 形成和随后的氧化 (NOx) 生产,独特地结合了这两种反应途径.
结论:
- 暴露在微质中的水溶液的pH演变可以通过改变背景气体来调整.
- 电子启动和中性物种启动的反应对溶液化学有不同的贡献.
- 等离子体具有独特的协同效应,促进氧化和电解,形成复杂的产品.
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