气候变化领域集成服务门户(CCPortal): Interaction between succinic acid and sulfuric acid-base clusters

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DOI	10.5194/acp-19-8003-2019
	Interaction between succinic acid and sulfuric acid-base clusters
	Lin Y.; Ji Y.; Li Y.; Secrest J.; Xu W.; Xu F.; Wang Y.; An T.; Zhang R.
发表日期	2019
ISSN	16807316
起始页码	8003
结束页码	8019
卷号	19 期号:12
英文摘要	Dicarboxylic acids likely participate in the formation of pre-nucleation clusters to facilitate new particle formation in the atmosphere, but the detailed mechanism leading to the formation of multicomponent critical nuclei involving organic acids, sulfuric acid (SA), base species, and water remains unclear. In this study, theoretical calculations are performed to elucidate the interactions between succinic acid (SUA) and clusters consisting of SA-ammonia (AM)=dimethylamine (DMA) in the presence of hydration of up to six water molecules. Formation of the hydrated SUA qSA q base clusters is energetically favorable, triggering proton transfer from SA to the base molecule to form new covalent bonds or strengthening the preexisting covalent bonds. The presence of SUA promotes hydration of the SA •AM and SA•AM•DMA clusters but dehydration of the SA •DMA clusters. At equilibrium, SUA competes with the second SA molecule for addition to the SA q base clusters at atmospherically relevant concentrations. The clusters containing both the base and organic acid are capable of further binding with acid molecules to promote subsequent growth. Our results indicate that the multicomponent nucleation involving organic acids, sulfuric acid, and base species promotes new particle formation in the atmosphere, particularly under polluted conditions with a high concentration of diverse organic acids. © Author(s) 2019.
语种	英语
scopus关键词	ammonia; atmospheric chemistry; carboxylic acid; concentration (composition); hydration; nucleation; sulfuric acid
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/144331
作者单位	Department of Atmospheric Sciences and Department of Chemistry, Texas A and M University, College Station, TX 77843, United States; Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China; Aerodyne Research Inc, Billerica, MA 01821, United States; Environment Research Institute, Shandong University, Qingdao, 266237, China; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States
推荐引用方式 GB/T 7714	Lin Y.,Ji Y.,Li Y.,et al. Interaction between succinic acid and sulfuric acid-base clusters[J],2019,19(12).
APA	Lin Y..,Ji Y..,Li Y..,Secrest J..,Xu W..,...&Zhang R..(2019).Interaction between succinic acid and sulfuric acid-base clusters.Atmospheric Chemistry and Physics,19(12).
MLA	Lin Y.,et al."Interaction between succinic acid and sulfuric acid-base clusters".Atmospheric Chemistry and Physics 19.12(2019).