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DOI	10.5194/acp-22-2639-2022
	The role of organic acids in new particle formation from methanesulfonic acid and methylamine
	Zhang, Rongjie; Shen, Jiewen; Xie, Hong-Bin; Chen, Jingwen; Elm, Jonas
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	2639
结束页码	2650
卷号	22 期号:4 页码:12
英文摘要	Atmospheric organic acids (OAs) are expected to enhance methanesulfonic acid (MSA)-driven new particle formation (NPF). However, the exact role of OAs in MSA-driven NPF remains unclear. Here, we employed a two-step strategy to probe the role of OAs in MSA-methylamine (MA) NPF. Initially, we evaluated the enhancing potential of 12 commonly detected OAs in ternary MA-MSA-OA cluster formation by considering the formation free energies of the (MSA)(1)(MA)(1)(OA)(1) clusters and the atmospheric concentrations of the OAs. It was found that formic acid (ForA) has the highest potential to stabilize the MA-MSA clusters. The high enhancing potential of ForA results from its acidity, structural factors such as no intramolecular H bonds, and high atmospheric abundance. The second step is to extend the MSA-MA-ForA system to larger cluster sizes. The results indicate that ForA can indeed enhance MSA-MA NPF at atmospheric conditions (the upper limited temperature is 258.15 K), indicating that ForA might have an important role in MSA-driven NPF. The enhancing effect of ForA is mainly caused by an increased formation of the (MSA)(2)(MA)(1) cluster, which is involved in the pathway of binary MSA-MA nucleation. Hence, our results indicate that OAs might be required to facilitate MSA-driven NPF in the atmosphere.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000763301800001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273591
作者单位	Dalian University of Technology; Aarhus University; Aarhus University
推荐引用方式 GB/T 7714	Zhang, Rongjie,Shen, Jiewen,Xie, Hong-Bin,et al. The role of organic acids in new particle formation from methanesulfonic acid and methylamine[J],2022,22(4):12.
APA	Zhang, Rongjie,Shen, Jiewen,Xie, Hong-Bin,Chen, Jingwen,&Elm, Jonas.(2022).The role of organic acids in new particle formation from methanesulfonic acid and methylamine.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(4),12.
MLA	Zhang, Rongjie,et al."The role of organic acids in new particle formation from methanesulfonic acid and methylamine".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.4(2022):12.