溶液稳定、高导电性波纹状石墨烯片(英文)  

Solution-Processable,Highly Conductive,Permanently Rippled Graphene Sheets

作　　者：范承伟[1] 张新[1] 陈胜[1] 王海芳[1] 曹傲能[1] 

机构地区：[1]上海大学纳米化学与生物学研究所,上海200444

出　　处：《物理化学学报》2012年第10期2465-2470,共6页Acta Physico-Chimica Sinica

基　　金：supported by the National Natural Science Foundation of China(21073117);National Key Basic Research Program of China(973)(2009CB930200,2011CB933402);Shanghai Leading Academic Disciplines,China(S30109)~~

摘　　要：特殊的单原子层二维sp2碳结构给石墨烯带来众多独特的性能和潜在的应用.然而,单层石墨烯容易聚集并会逐渐重新石墨化,这成为其应用的一个重要障碍.本文报道了一种新策略来解决这个问题,即通过在石墨烯表面引入sp2碳纳米结构作为永久的波纹来阻止石墨烯的聚集和石墨化,并使之在溶液中易于分散和稳定.和其他功能化方法不同,该方法没有引入杂原子,不破坏石墨烯的结构和功能.制得的石墨烯具有优异的导电性能(～65000S·m-1),并具有较好的溶液稳定性.The single atom thick sp2 carbon structure of graphene gives rise to its unique properties and potential applications.However,one serious obstacle for its application is that graphene is prone to aggregate in suspension and gradually stack into graphite.Here,we report a novel approach to solve this problem.The basic idea is to introduce sp2 carbon nano-islands on the graphene sheets that act as permanent ripples to prevent the stacking and graphitization of graphene and make it easy to re-suspend.Unlike most functionalization methods,this approach avoids the introduction of heteroatoms.Thus,it does not deteriorate the structure and change the properties of graphene.The carbon-rippled graphene has a remarkable electronic conductivity of～65000 S·m-1,and can be readily suspended in solvent.

关 键 词：石墨烯 波纹 碳纳米笼 可膨胀石墨 导电性 溶液稳定性 

分 类 号：O613.71[理学—无机化学]