Characterization of the Thermodynamic and Kinetic Properties of Aerosols in the Kelvin Regime

该项目正在研究实验室中与小气溶胶（约3-50纳米）增长相关的热力学性质，作为成分、温度和大小的函数。 目前，很少有人知道非常小的颗粒，作为成核的临界核和输入模型的气溶胶在大气中的形成和增长和大的差异之间存在模型预测和现场观测。 这项工作预计将导致粒子相变的开尔文效应（粒子表面张力效应）和纯气溶胶的新粒子形成的更好的理解。 在研究的最后阶段，将采集并分析选定大小的田间样本，以与实验室结果进行比较。

This project is investigating the thermodynamic properties associated with the growth of small aerosols (approximately 3-50 nm) in the laboratory as a function of composition, temperature and size. At present, very little is known about very small particles that serve as the critical nuclei for nucleation and input for models of aerosol formation and growth in the atmosphere and large discrepancies exist between model predictions and field observations. This work is expected to lead to a greater understanding of the Kelvin effect (particle surface-tension effect) on particle phase transitions and the new particle formation of pure aerosols. During the final phase of the study, size-selected field samples will be collected and analyzed for comparison with the laboratory results.