Synthesis and evaluation of single-particle catalyst produced from liquid droplets by use of tandem-trap apparatus

2016 Fiscal Year Final Research Report

• Project/Area Number: 26410024
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Physical chemistry
• Research Institution: Gakushuin University
• Principal Investigator: Kohno Jun-ya 学習院大学, 理学部, 教授 (90557753)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 単一粒子触媒 / イオントラップ / 液滴 / サーモグラフィー / ラマン分光法

Outline of Final Research Achievements

Materials work in multi-component forms. A wide range of compositions must be tested to obtain the optimum composition for a specific application. We propose optimization using a series of small levitated single particles synthesized from droplets with ingredients inside. This method enables the rapid examination of the properties of particles with a wide variety of compositions. The particle composition can be controlled by merging a predetermined number of droplets containing the component materials as a solute. We aim to optimize catalytic activity of multicomponent particles which catalyze gas-phase reactions. We developed a reactivity-evaluation system of a single particle levitated in an electrodynamic trap, and measured a CO-oxidation reaction catalyzed by a single-particle catalyst of gold-supported titanium dioxide (Au/TiO2). The reactivity of the catalyst is observed from temperature rise by the heat of reaction measured by the black-body radiation.

Free Research Field

物理化学