2015 Annual Meeting of The Institute of Electrostatics JapanTokyo Metropolitan University
September 24-25, 2015

25pB-1
September 25th (Fri.), <14:00-15:00>
Room 2

Study of Plasma-assisted Combustion for Low Emission〇Tomohiko IKEDA*
Study of Plasma-assisted Combustion for Low Emission

Abstract:
This paper proposes using a dielectric barrier discharge (DBD) insteadof catalyst of catalytic combustion. The catalytic combustion is used for a stablecombustion of a lean mixture, but it has some disadvantages. The DBD isexpected to reduce the disadvantages of the catalyst. A lean premixed
methane-air mixture flows in a DBD, then the emission gas is measured. It isshown that the DBD can cause combustion below the lean flammable limit.
When the discharge energy increases, the combustion rate of methane
increases, while NOx emission increases. It means that radicals in plasma
promote chemical reaction different from the usual combustion reaction.

2015 Annual Meeting of The Institute of Electrostatics JapanTokyo Metropolitan University
September 24-25, 2015

25pB-2September 25th (Fri.), <14:00-15:00>
Room 2

Production of Au Nanoparticle Films Using Electron-Beam
Induced Non-Thermal Plasma on the Surface of AqueousSolutions〇Teruyuki HAKODA*, Ayaka TAKAHASHI**, Akihiko SHIMADA*,Shunya
YAMAMOTO*, Hirofumi ARITANI**, and Tetsuya YAMAKI**Japan Atomic Energy Agency, ** Saitama Institute of Technology

Abstract:
Aqueous solutions containing 1 mmol/L AuCl4- ions and 0.5-20v%
alcohol (2-propanol or ethanol) were irradiated with a few tens keV electron
beams (EBs).Gold (Au) films were produced on the surface of the irradiatedsolution. The
production rate of the Au films was high at concentrations of 0.5-1v% for
2-propanol and became lower at higher concentrations. At an alcohol
concentration of 0.5v%, the Au particles of the films were 5-20 nm and5-100 nm in diameter for 2-propanol and ethanol, respectively. The XPS
analysis demonstrated that the films consisted of about 85wt% of metal Au(0),10wt% of Au(I), and a few w% of Au(III) for 2-propanol. A Fourier transform
infrared diffusion reflectance (FTIR-DR) measurement showed that CO wasoxidized into CO2 over the Au films loaded to TiO2 substrates at a temperatureof 200°C, enabling us to confirm a catalytic activity.

2015 Annual Meeting of The Institute of Electrostatics JapanTokyo Metropolitan University
September 24-25, 201525pB-3
September 25th (Fri.), <14:00-15:00>
Room 2

Generation of ZnO particle using pulse arc discharge
plasmaKunisuke Fujii
Kumamoto University

Abstract:
ZnO particle has a high UV shielding property and transparency. So ZnO
particle is widely applicable, for example cosmetics, medicines and plastics. But,
usual creating method is difficult control and complicated equipment. In thisstudy, ZnO particle was created using pulse arc discharge plasma. This method
is easier control and complicated than usual. And, we investigated influences ofcomponent of the product, diameter of the product and shape of the product bycharging energy and gas pressure.

2015 Annual Meeting of The Institute of Electrostatics JapanTokyo Metropolitan University
September 24-25, 2015

25pB-4September 25th (Fri.), <14:00-15:00>
Room 2

Atmospheric Plasma Hybrid Surface Treatment for
Fluoropolymer Plastics (Toward Applications for MedicalDevices, Biocompatible Materials, and Electronic Devices)
Masaaki Okubo, Tomoyuki Kuroki
Osaka Prefecture University

Abstract:
A surface modification technique that improves the adhesion offluorocarbon polymer films such as polytetrafluoroethylene (PTFE) is developed
using argon at atmospheric pressure and acrylic acid vapor nonthermal plasma.
From results of peeling tests, XPS analyses, and SEM photograph, it isconfirmed that chemical bonds with F atoms decrease greatly on the surface andthat a hydrophilic layer is formed due to the process. Using the present surface
treatment apparatus, it is possible to bond A4-sized sheets of PTFE and metals
or rubbers without losing the excellent physical properties of PTFE.