溶液稳定、高导电性波纹状石墨烯片

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....

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Bibliographic Details
Published in物理化学学报 Vol. 28; no. 10; pp. 2465 - 2470
Main Author 范承伟 张新 陈胜 王海芳 曹傲能
Format Journal Article
LanguageChinese
Published 上海大学纳米化学与生物学研究所,上海200444 2012
Subjects
可膨胀石墨
导电性
波纹
溶液稳定性
石墨烯
碳纳米笼
Carbon nanocage
Conductivity
Expandable graphite
Solution stability
Ripple
Graphene
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Summary: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.
Bibliography:FAN Cheng-Wei ZHANG Xin CHEN Sheng WANG Hai-Fang CAO Ao-Neng （Institute of Nanochemistry and Nanobiology,Shanghai University,Shanghai 200444,P.R.China）
11-1892/06
Graphene; Ripple; Carbon nanocage; Expandable graphite; Conductivity; Solution stability
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 readil
ISSN:1000-6818
DOI:10.3866/PKU.WHXB201209103