新型炭材料2012，Vol.27Issue(2)：117-122,6.
多壁碳纳米管-还原氧化石墨烯杂化薄膜导电性能的调控
The tunable electrical conductivity of a MWCNT-reduced graphene oxide hybrid film
摘要
Abstract
Graphene oxide (GO) aqueous colloids mixed with different amounts of multi-walled carbon nano-tubes (MWCNTs) were dispersed by ultrasonication to form a stable and homogeneous MWCNT-GO suspension. MWCNT-reduced graphene oxide (MWCNT-RGO) hybrid films were obtained by microfiltration, followed by heat treatment at 200 t for 1 h in a vacuum oven to remove most of oxygen-containing functional groups. Results show that the MWCNT-GO hybrid films exhibit a uniformly-layered " sandwich" structure, forming a 3D conductive network. The electrical conductivity of the MWCNT-RGO hybrid films can be tuned by the amount of MWCNTs present and heat treatment conditions. The electrical conductivities of the hybrid films before and after the heat treatment all increase with the MWCNT content. The heat treatment increases the electrical conductivity of the hybrid film with 50% MWCNTs from 1 120 to 5 380 S/m.关键词
氧化石墨烯/多壁碳纳米管/薄膜/导电性/低温热处理Key words
Graphene oxide/ MWCNTs/ Film/ Conductivity/ Thermal treatment at low temperature分类
通用工业技术引用本文复制引用
李永锋,刘燕珍,杨永岗,王茂章,温月芳..多壁碳纳米管-还原氧化石墨烯杂化薄膜导电性能的调控[J].新型炭材料,2012,27(2):117-122,6.基金项目
国家自然科学基金(50873092) （50873092）
