Interaction between atmospheric-pressure non-equilibrium plasma and solution studied by optical diagnostics and computer simulations

通过光学诊断和计算机模拟研究大气压非平衡等离子体与溶液之间的相互作用

• 批准号: 23684049
• 负责人: ITO Tsuyohito
• 金额: $ 18.22万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23684049/
• 关键词: 大気圧プラズマ; プラズマー液相相互作用; プラズマ―液相相互作用; プラズマ－液相相互作用; プラズマ-液相相互作用

Interfacial phenomena to understand interaction between atmospheric-pressure non-equilibrium plasma and solution was studied.Effects of an externally applied electric field on the water structure at an interface were studied using sum-frequency generation spectroscopy. Electric field, generally applied for atmospheric-pressure plasma generation, should be studied to understand the interfacial phenomena. The interface was calcium fluoride - solution (pH 3.8) interface. Water molecules that have an ice-like structure are strongly affected by an applied electric field. The required electric field is extremely low compared to that expected by the zeta potential. The results suggest that the structure of water molecules can be controlled with relatively weak electric field.Furthermore, we performed particle simulations to understand energy fluxes delivered to the solution (cathode) from plasma. The results show that energy flux by neutrals can be higher than that delivered by ions.

研究了界面现象，以了解大气压非平衡等离子体与溶液之间的相互作用。利用和频发生光谱研究了外部施加的电场对界面处水结构的影响。应研究通常用于大气压等离子体生成的电场以了解界面现象。该界面为氟化钙-溶液(pH 3.8)界面。具有冰状结构的水分子受到施加的电场的强烈影响。与 zeta 电位预期的电场相比，所需的电场极低。结果表明，可以用相对较弱的电场来控制水分子的结构。此外，我们进行了粒子模拟以了解从等离子体传递到溶液（阴极）的能量通量。结果表明，中性粒子传递的能量通量可能高于离子传递的能量通量。

项目成果

Structure of interfacial water molecules under externally-applied electric field studied by vibrational sum-frequency generation

振动和频发生研究外加电场下界面水分子的结构

• 发表时间: 2013
• 作者: T. Kondo;T. Ito
• 通讯作者: T. Ito

Flipping Water Molecules at Insulator/Solution Interface using an Externally Applied Weak Electric Field

使用外部施加的弱电场翻转绝缘体/溶液界面处的水分子

• DOI: 10.1063/1.4868022
• 发表时间: 2014
• 期刊: Appl. Phys. Lett
• 作者: T. Kondo;T. Ito
• 通讯作者: T. Ito

PIC-MCC法によるArおよびHe直流放電生成用陰極への照射粒子エネルギー分布計算

采用PIC-MCC法计算Ar、He直流放电发生阴极的粒子能量分布

• 发表时间: 2014
• 作者: 近藤崇博;伊藤剛仁
• 通讯作者: 伊藤剛仁

大気圧プラズマによる水中脱色反応の研究

常压等离子体对水中脱色反应的研究

• 发表时间: 2013
• 作者: 近藤 崇博;鷹尾 治樹;伊藤 剛仁;伊藤 拓宏;横山 茂之
• 通讯作者: 横山 茂之

Electric field measurements in high-pressure discharges by coherent Raman scattering

通过相干拉曼散射测量高压放电中的电场

• 发表时间: 2011
• 作者: T.Kanazawa;T.Ito;S.Hamaguchi;水野大介;本多 剛，石川剛志，廣野哲朗，高木秀雄;中村一平・吉弘達矢・稲川博敬・藤芳暁・松下道雄;T.Ito
• 通讯作者: T.Ito