Amine Chemistry Relevant to Atmospheric New Particle Formation and Growth

化学系的环境化学科学(ECS)计划将支持特拉华大学默里·V·约翰斯顿教授的研究计划。约翰斯顿教授和他的研究小组将开发和使用基于激光的质谱学方法来研究胺在大气气溶胶成核和生长中的作用。这项研究将阐明反应机制，并得出准确表示大气模式中新的气溶胶粒子形成和生长所需的基本速率参数。大气中新的粒子形成事件是一种全球现象，被认为在很大程度上促进了云凝结核的集中，从而影响了降水模式和地球的能量平衡。约翰斯顿教授的研究阐明了胺对气溶胶粒子形成的影响，这可能会导致大气模型发生重大变化，目前可能低估了大气中气溶胶粒子的浓度和组成。这项研究将在一个具有重要社会意义的研究领域为本科生和研究生提供极好的培训机会。

The Environmental Chemical Sciences (ECS) program of the Division of Chemistry will support the research program of Prof. Murray V. Johnston of the University of Delaware. Prof. Johnston and his research group will develop and employ laser-based mass spectrometry methods to study the role of amines in the nucleation and growth of atmospheric aerosols. The study will elucidate reaction mechanisms and yield fundamental rate parameters necessary to accurately represent new aerosol particle formation and growth in atmospheric models. New particle formation events in the atmosphere is a global phenomenon that is thought to contribute substantially to the concentration of cloud condensation nuclei, thereby influencing precipitation patterns and Earth's energy balance. Prof. Johnston's study to elucidate the impact of amines on aerosol particle formation could lead to significant changes in atmospheric models that currently may underestimate the concentration and composition of aerosol particles in the atmosphere. The study will provide excellent training opportunities to undergraduate and graduate students in an area of research of great societal importance.