Synthesis of Few Layer Graphene by Non-Transferred Arc Plasma System

Title
Synthesis of Few Layer Graphene by Non-Transferred Arc Plasma System
Authors
박동화
Keywords
Graphene, Synthesis, Thermal Plasma, Methane, Hydrogen, Raman.
Issue Date
2013
Publisher
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Series/Report no.
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY; vol.13 no.11 startpage 7418 endpage 7423
Abstract
Graphene has recently been the focus of a great deal of attention owing to its outstanding properties, which include high mobility, high thermal conductivity and high structural stability. In this study, a few layer graphene was successfully synthesized from methane gas using a non-transferred direct current arc plasma system. Non-transferred thermal plasma offers high temperature, steep temperature gradient and high enthalpy to enhance the reaction kinetics of graphene synthesis. In order to prepare high quality few layer graphene, graphene products synthesized under several conditions was analyzed comparatively. Effects of gap distance between the plasma torch and graphite substrate, the flow rate of additional reactant gas, and different types of plasma forming gas on the synthesis of few layer graphene were investigated. Methane gas was injected into the plasma jet as a carbon source for the synthesis of graphene and a thermal plasma jet was generated by pure argon or a mixture of argon-hydrogen. The results revealed that hydrogen gas improved the quality of few layer graphene by inducing surface etching and increasing plasma power.
URI
http://dspace.inha.ac.kr/handle/10505/33049
ISSN
1533-4880
Appears in Collections:
College of Engineering(공과대학) > Chemical Engineering (화학공학) > Local Access Journal Papers, Reports(화학공학 논문, 보고서)

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