Study on synthesis of metal nanoparticles in mist-containing plasma

2016 Fiscal Year Final Research Report

• Project/Area Number: 26600128
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Plasma electronics
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: Tochikubo Fumiyoshi 首都大学東京, 理工学研究科, 教授 (90244417)
• Co-Investigator(Renkei-kenkyūsha): SHIRAI Naoki 北海道大学, 大学院工学研究院, 准教授 (80552281)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 放電プラズマ / ミスト / 液相反応 / ナノ粒子生成 / 粒子挙動観測 / エレクトロスプレー

Outline of Final Research Achievements

Metallic nanoparticles such as gold nanoparticles and silver nanoparticles can be formed in liquid by irradiating a chloroauric acid aqueous solution or a silver nitrate solution with a nonequilibrium plasma. In this research, we focused on the use of mist in plasma from the viewpoint of reaction efficiency at the gas - liquid interface and control of particle size. We studied the method for the generation of mist-containing plasma, and developed a discharge reactor using ultrasonic atomization method and dc glow discharge, and a discharge reactor using electrostatic atomization method and corona discharge, and evaluated their characteristics. We also attempted to synthesize gold nanoparticles and silver nanoparticles using mist-containing plasma and confirmed its feasibility.

Free Research Field

プラズマエレクトロニクス