| DOI: | 10.1016/j.atmosenv.2014.02.049
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| Scopus记录号: | 2-s2.0-84896824304
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| 论文题名: | Surface tensions of solutions containing dicarboxylic acid mixtures |
| 作者: | Lee J; Y; , Hildemann L; M
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2014
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| 卷: | 89 | | 起始页码: | 260
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| 结束页码: | 267
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| 语种: | 英语
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| 英文关键词: | Aerosol
; Climate change
; Cloud condensation nuclei
; Dicarboxylic acid
; Organic aerosol
; Surface tension
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| Scopus关键词: | Cloud condensation nuclei
; Critical saturation
; Dicarboxylic acid
; Langmuir adsorption
; Multicomponent mixture
; Organic aerosol
; Organic components
; Szyszkowski equation
; Aerosols
; Climate change
; Condensation
; Mixtures
; Surface tension
; dicarboxylic acid
; glutaric acid
; malonic acid
; oxalic acid
; succinic acid
; aerosol composition
; carboxylic acid
; climate change
; cloud condensation nucleus
; concentration (composition)
; isotherm
; surface tension
; adsorption
; aerosol
; aqueous solution
; article
; chemical structure
; climate change
; human
; molecular weight
; prediction
; priority journal
; surface tension
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| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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| 英文摘要: | Organic solutes tend to lower the surface tension of cloud condensation nuclei, allowing them to more readily activate. The surface tension of various dicarboxylic acid aerosol mixtures was measured at 20°C using the Wilhelmy plate method. At lower concentrations, the surface tension of a solution with equi-molar mixtures of dicarboxylic acids closely followed that of a solution with the most surface-active organic component alone. Measurements of surface tension for these mixtures were lower than predictions using Henning's model and the modified Szyszkowski equation, by ~1-2%. The calculated maximum surface excess (Γmax) and inverse Langmuir adsorption coefficient (β) from the modified Szyszkowski equation were both larger than measured values for 6 of the 7 mixtures tested. Accounting for the reduction in surface tension in the Köhler equation reduced the critical saturation ratio for these multi-component mixtures - changes were negligible for dry diameters of 0.1 and 0.5μm, but a reduction from 1.0068 to 1.0063 was seen for the 4-dicarboxylic acid mixture with a dry diameter of 0.05μm. © 2014 Elsevier Ltd. |
| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/80664
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Civil and Environmental Engineering Dept., Stanford University, Stanford, CA 94305, United States
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| Recommended Citation: | |
Lee J,Y,, Hildemann L,et al. Surface tensions of solutions containing dicarboxylic acid mixtures[J]. Atmospheric Environment,2014-01-01,89
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