Chemical Reactions at the Interface Periphery of Colliding Droplets Studied by Raman Image Analysis
Chemical Reactions at the Interface Periphery of Colliding Droplets Studied by Raman Image Analysis
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通过拉曼图像分析研究碰撞液滴界面周边的化学反应
DOI：
10.1021/acs.jpca.1c06163
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Kohno Jun-ya
中科院分区：
文献类型：
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作者：
Suzuki Shuhei;Kamoshita Aya;Kohno Jun-ya
反应性溶液界面上的化学反应对于全面理解溶液反应具有重要意义。我们研究了两个液滴碰撞引起的化学反应。反应的程度是通过分析从H2SO4和NH3水溶液的碰撞液滴的界面出现的拉曼散射光的光谱和图像来测量的。得到的产物浓度低于从一个简单的扩散模型预期。结果表明，在碰撞液滴混合区的外围产生了一个新的界面。这项研究提供了基础，扩展这种方法来测量碰撞液滴界面处的快速化学反应。
Chemical reactions at the interface of reactive solutions are of importance for a full understanding of solution reactions. We investigate the chemical reaction induced by the collision of two droplets. The extent of the reaction is measured by analyzing spectra and images of the Raman scattered light emerging from the interface of the colliding droplets of H2SO4and NH3aqueous solutions. The obtained product concentration is lower than that expected from a simple diffusion model. The result indicates that a fresh interface is produced at the periphery of the mixing region of the colliding droplets. This study provides the basis to extend this method to measure rapid chemical reactions at the interface of colliding droplets.