Development of cluster/ultra-fine-particle analyzer by deflection mass spectroscopy

偏转质谱团簇/超细颗粒分析仪的研制

• 批准号: 07555233
• 负责人: SADAKATA Masayoshi
• 金额: $ 2.94万
• 依托单位: THE UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555233/
• 关键词: mass spectroscopy; laser abrasion; deflection; nano particle; cluster; ultra fine particle; analyzer; レーザー蒸発法; レーザー; 超微粒子; 質量分析計; 核生成

In order to investigate a mechanism of nanometer particle generation, a cluster/ultra-fine-particle analyzer by using deflection mass spectroscopy was developed. The ultra fine particles generating from copper rod by laser abrasion was used as samples. The sample particles were observed by scanning electron microscopy and there were distributed from 2nm to 20 nm. The developed analyzer could be measured more than 5 nm particles and it was found that 50 % (weight) of sample particles were aggregated 4 pieces of 5 nm primary particle. The shapes of particles generating from laser abrasion were affected by laser pulse mode.

为了研究纳米粒子的生成机理，利用偏转质谱仪研制了一种团簇/超细粒子分析仪。以激光研磨铜棒产生的超细颗粒为研究对象。扫描电子显微镜观察到样品颗粒分布在2~20 nm之间。所研制的分析仪可以测量大于5 nm的颗粒，发现50%(重量)的样品颗粒是由4个5 nm一次颗粒聚集而成的。激光脉冲方式对激光磨损产生的磨粒形状有影响。

项目成果

Masayoshi Sadakata, Y.u Bing Xu and Azuchi Harano: ""A Systematic Approach for the Designe of Aerosol Reactors"" Power Technology. 88. 261-266 (1996)

Masayoshi Sadakata、Y.u Bing Xu 和 Azuchi Harano：“气溶胶反应器设计的系统方法”动力技术。

Masayoshi SADAKATA: "Growth of Primary Soot Particles in Atmospheric Premixed Methane Oxygen Flame" Trans IChemE. 73,A. 142-146 (1995)

Masayoshi SADAKATA：“大气预混合甲烷氧火焰中初级烟灰颗粒的生长”Trans IChemE。

Masayoshi Sadakata: "Growth of Primary Soot Particles in Atmospheric Premixed Methane Oxygen Flame" Trans.I.Chem.E.173-A. 142-146 (1995)

Masayoshi Sadakata：“大气预混合甲烷氧火焰中初级烟灰颗粒的生长”Trans.I.Chem.E.173-A。