• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Charge Effects on the Efflorescence in Single Levitated Droplets
【24h】

Charge Effects on the Efflorescence in Single Levitated Droplets

机译：对单升液滴中风化的充电效果

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The influence of electrical excess charges on the crystallization from supersaturated aqueous sodium chloride solutions is reported. This is accomplished by efflorescence studies on single levitated microdroplets using optical and electrodynamic levitation. Specifically, a strong increase in efflorescence humidity is observed as a function of the droplet's negative excess charge, ranging up to -2.1 pC, with a distinct threshold behavior, increasing the relative efflorescence humidity, at which spontaneous nucleation occurs, from 44% for the neutral microparticle to 60%. These findings are interpreted by using molecular dynamics simulations for determining plausible structural patterns located near the particle surface that could serve as suitable precursors for the formation of critical clusters overcoming the nucleation barrier. These results, facilitating heterogeneous nucleation in the case of negatively charged microparticles, are compared to recent work on charge-induced nucleation of neat supercooled water, where a distinctly different nucleation behavior as a function of droplet charge has been observed.
机译：报道了电过量电荷对来自超饱和氯化钠溶液结晶的影响。这是通过使用光学和电动升高的单升悬浮微滴的开发研究来实现的。具体地，观察到血糖湿度的强烈增加作为液滴的负量过量电荷的函数，范围为-2.1pc，具有明显的阈值行为，增加了自发核心发生的相对兴旺湿度，从44％到中性微粒至60％。通过使用用于确定颗粒表面附近的合理结构图案来解释这些发现的解释，该结构图案可以用作克服核心屏障的临界簇的合适前体。这些结果，促进带负电的微粒的情况下的异质成核，与最近的纯净过冷水的核心作用进行比较，其中观察到作为液滴电荷的函数的明显不同的核切割行为。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号