Study for Water-Surface Cluster Chemistry

水表面团簇化学研究

• 批准号: 23655067
• 负责人: HARATA Akira
• 金额: $ 2.58万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23655067/
• 关键词: 機器分析; 分析科学; 表面・界面物性; 紫外励起分光; クラスター化学; 水面; 多環芳香族; ピレン; 共焦点顕微鏡

The aim of this study is to establish water-surface cluster chemistry, based on the experimental data. An ultraviolet-excitation confocal fluorescence microscope is newly developed to confirm that organic molecules form cluster on the water surface even if the molecules have a smaller molecular weight than 300 and are spread with an extremely low surface density. A semi-confocal microscope has been designed and developed, which covers excitation wavelength ranging from 250 nm to 500 nm to observe surface-selective excitation spectra. Polycyclic aromatic hydrocarbon was selected as target molecules. The semi-confocal microscope utilizes excitation with monochromated high-power Xe-lamp in the total internal reflection geometry. Performance of the microscope was evaluated. Surface-specific spectra were observedfor some chemicals including pyrene. New method for determining surface-pH was proposed. Some of the results are presented in academic domestic and international conferences and the other parts were summarized as matters to be under further investigation.

本研究的目的是建立水表面团簇化学，根据实验数据。新开发的紫外线激发共聚焦荧光显微镜可确认有机分子在水面上形成簇，即使分子量小于300且以极低的表面密度铺展。设计并研制了半共焦显微镜，可在250 ~ 500 nm范围内观察表面选择性激发光谱。选择多环芳烃作为目标分子。半共焦显微镜采用单色高功率氙灯激发全内反射几何结构。对显微镜的性能进行了评价。对芘等一些化合物的表面特征光谱进行了分析。提出了一种测定表面pH值的新方法。部分研究成果已在国内外学术会议上发表，部分研究成果已作总结，有待进一步研究。

项目成果

Rapid Decomposition of Cellulose Dissolved in Ionic Liquid Using Gas/Liquid Interface Discharge

利用气/液界面放电快速分解溶解在离子液体中的纤维素

• DOI: 10.1143/jjap.51.070205
• 发表时间: 2012
• 期刊: Japanese Journal of Applied Physics
• 影响因子: 1.5
• 作者: 諏訪雅頼;塚原聡;渡會仁;Shoichiro FURUKAWA
• 通讯作者: Shoichiro FURUKAWA

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