Sulfuric acid-dimethylamine particle formation enhanced by functional organic acids: an integrated experimental and theoretical study

doi:10.1039/d2cp01671k

	Sulfuric acid-dimethylamine particle formation enhanced by functional organic acids: an integrated experimental and theoretical study
	Wang, Chunyu 2,3; Liu, Yirong 2; Huang, Teng 4; Feng, Yajuan 2; Wang, Zhongquan 1; Lu, Runqi 2; Jiang, Shuai 2
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2022-10-05
卷号	24
ISSN号	1463-9076
DOI	10.1039/d2cp01671k
通讯作者	Jiang, Shuai(shuaijiang@ustc.edu.cn)
英文摘要	Atmospheric new particle formation (NPF), which has been observed globally in clean and polluted environments, is an important source of boundary-layer aerosol particles and cloud condensation nuclei, but the fundamental mechanisms leading to multi-component aerosol formation have not been well understood. Here, we use experiments and quantum chemical calculations to better understand the involvement of carboxylic acids in initial NPF from gas phase mixtures of carboxylic acid, sulfuric acid (SA), dimethylamine, and water. A turbulent flow tube coupled to an ultrafine condensation particle counter with particle size magnifier has been set up to measure NPF. Experimental results show that pyruvic acid (PA), succinic acid (SUA), and malic acid (MA) can enhance sulfuric acid-dimethylamine nucleation in the order PA < SUA < MA with a greater enhancement observed at lower SA concentrations. Computational results indicate that the carboxylic and hydroxyl groups are related to the enhancement. This experiment-theory study shows the formation of multi-component aerosol particles and the role of the organic functional group, which may aid in understanding the role of organics in aerosol nucleation and growth in polluted areas, and help to choose organic molecules of specific structures for simulation.
资助项目	National Natural Science Foundation of China[42107112] ; National Natural Science Foundation of China[41775112] ; National Natural Science Foundation of China[41877305]
WOS关键词	OH-INITIATED REACTIONS ; DICARBOXYLIC-ACIDS ; ALPHA-DICARBONYLS ; HOMOGENEOUS NUCLEATION ; ULTRAFINE PARTICLES ; OXOCARBOXYLIC ACIDS ; EXPERIMENTAL SETUP ; PYRUVIC-ACID ; OXALIC-ACID ; AEROSOLS
WOS研究方向	Chemistry ; Physics
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000859313100001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129193]
专题	中国科学院合肥物质科学研究院
通讯作者	Jiang, Shuai
作者单位	1.Huainan Normal Univ, Dept Phys, Huainan 232001, Anhui, Peoples R China 2.Univ Sci & Technol China, Sch Informat Sci & Technol, Hefei 230026, Anhui, Peoples R China 3.Chaohu Univ, Sch Chem & Mat Engn, Hefei 238024, Anhui, Peoples R China 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Lab Atmospher Physicochem, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chunyu,Liu, Yirong,Huang, Teng,et al. Sulfuric acid-dimethylamine particle formation enhanced by functional organic acids: an integrated experimental and theoretical study[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2022,24.
APA	Wang, Chunyu.,Liu, Yirong.,Huang, Teng.,Feng, Yajuan.,Wang, Zhongquan.,...&Jiang, Shuai.(2022).Sulfuric acid-dimethylamine particle formation enhanced by functional organic acids: an integrated experimental and theoretical study.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,24.
MLA	Wang, Chunyu,et al."Sulfuric acid-dimethylamine particle formation enhanced by functional organic acids: an integrated experimental and theoretical study".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 24(2022).