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Hydration of oxalic acid-ammonia complex: atmospheric implication and Rayleigh-scattering properties
Peng, Xiu-Qiu1,2; Huang, Teng2; Miao, Shou-Kui2; Chen, Jiao2; Wen, Hui2; Feng, Ya-Juan2; Hong, Yu2; Wang, Chun-Yu2; Huang, Wei1,2,3
2016
发表期刊RSC ADVANCES
摘要A previous study of the binary system (H2C2O4)(NH3)(n) (n = 1-6) suggested that an oxalic acid-ammonia complex may participate in atmospheric aerosol formations. However, the mechanism of the hydration of these cores is poorly understood. In this study, the hydration of (H2C2O4)(NH3) and (H2C2O4)(NH3)(2) cores with up to three water molecules is investigated with respect to different routes of formation. The results may improve understanding of the nucleation of clusters containing oxalic acid in the atmosphere. Acid dissociation is found to occur during the hydration process, leading to a HC2O4-/NH4+ ion pair. In contrast with the (H2C2O4)(NH3)(2) core, water molecules appear to be unfavorable with regard to the formation of hydrates with a (H2C2O4)(NH3) core; additionally, temperature is found to affect the formation of clusters and the distributions of different isomers with the same size, but the impact of relative humidity on the hydrates seems insignificant, implying that the formation of these clusters may be more favorable under cold ambient conditions. The monohydrates and dihydrates of the (H2C2O4)(NH3)(2) core may be relatively extensive in (H2C2O4)(NH3)(m)(H2O)(n) (m = 1-2, n = 1-3) clusters and may contribute to the atmospheric nucleation. Furthermore, this study presents a first attempt at determining the Rayleigh scattering properties of oxalic acid-ammonia-water pre-nucleation clusters; the results show that adding a water molecule could effectively increase the Rayleigh scattering intensity, but a single ammonia molecule may be able to generate a larger increase in the Rayleigh light scattering intensity than a water molecule. This may also indicate that clusters containing oxalic acid and ammonia show high Rayleigh light scattering intensities, but the more ammonia molecules there are in clusters, the higher the Rayleigh light scattering intensity and the greater the contribution to the extinction properties.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra03164a
关键词[WOS]CLOUD CONDENSATION NUCLEI ; DENSITY-FUNCTIONAL THEORY ; PRE-NUCLEATION CLUSTERS ; SULFURIC-ACID ; PARTICLE FORMATION ; DICARBOXYLIC-ACIDS ; AEROSOL FORMATION ; ULTRAFINE PARTICLES ; PARTICULATE MATTER ; MASS CONCENTRATION
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; National Natural Science Foundation of China(21403244 ; Director Foundation of AIOFM(AGHH201505 ; Director Foundation of AIOFM(AGHH201505 ; Director Foundation of AIOFM(AGHH201505 ; 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National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; National High Technology Research and Development Program of China (863 Program)(2014AA06A501) ; 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WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000377254800060
引用统计
被引频次：18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/21534
专题中科院安徽光学精密机械研究所
作者单位1.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Lab Atmospher Physicochem, Hefei 230031, Anhui, Peoples R China
3.Chinese Acad Sci, Innovat Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Fujian, Peoples R China
第一作者单位中科院安徽光学精密机械研究所
推荐引用方式
GB/T 7714		 Peng, Xiu-Qiu,Huang, Teng,Miao, Shou-Kui,et al. Hydration of oxalic acid-ammonia complex: atmospheric implication and Rayleigh-scattering properties[J]. RSC ADVANCES,2016,6(52):46582-46593.
APA Peng, Xiu-Qiu.,Huang, Teng.,Miao, Shou-Kui.,Chen, Jiao.,Wen, Hui.,...&Huang, Wei.(2016).Hydration of oxalic acid-ammonia complex: atmospheric implication and Rayleigh-scattering properties.RSC ADVANCES,6(52),46582-46593.
MLA Peng, Xiu-Qiu,et al."Hydration of oxalic acid-ammonia complex: atmospheric implication and Rayleigh-scattering properties".RSC ADVANCES 6.52(2016):46582-46593.
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