Elucidating ion distribution at the air-water interface
| Project/Area Number |
15K12188
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | National Institute for Environmental Studies (2016-2017)
Kyoto University (2015) |
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Principal Investigator |
Enami Shinichi 国立研究開発法人国立環境研究所, 環境計測研究センター, 主任研究員 (00589385)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 界面 / イオン / 水滴 / エアロゾル / 大気 / 粒子 / 疎水性 / ホフマイスター / 表面 / microheterogeneity / 不均一 / ホフマイスター効果 / 親水性 / 界面活性 / 液滴 / マススペクトル / 大気化学 / 溶媒 / SFG / 質量分析法 / レーザー |
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| Outline of Final Research Achievements |
Ions at the air/water interface play key roles in the atmosphere, for example, nucleation, growth, and aging process of atmospheric aerosol. Surface-active ions (such as iodide) are expected to react preferentially with atmospheric oxidants, such as the ozone and OH radical, at the air/water interface via specific mechanisms. However, establishing the relative "availability" of the different ions to gas-phase oxidants at the air/water interface under atmospherically relevant conditions is challenging. The interfacial availability of atmospherically relevant ions, including carboxylate ions Rn-COO- (n = 1-7) and n-, cyclo-, aromatic-R6-COO-, at the air/water interface is investigated by a novel application of mass spectrometry of aqueous microjets.
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Report
(4 results)
Research Products
(10 results)
