物理化学学报
物理化學學報
물이화학학보
ACTA PHYSICO-CHIMICA SINICA
2012年
10期
2465-2470
,共6页
范承伟%张新%陈胜%王海芳%曹傲能*
範承偉%張新%陳勝%王海芳%曹傲能*
범승위%장신%진성%왕해방%조오능*
Graphene%Ripple%Carbon nanocage%Expandable graphite%Conductivity%Solution stability
Graphene%Ripple%Carbon nanocage%Expandable graphite%Conductivity%Solution stability
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 gradual y 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.
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 gradual y 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.
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 gradual y 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.
