960化工网
Chemical vapor deposition derived flexible graphene paper and its application as high performance anodes for lithium rechargeable batteries†
Guoqing Ning,Chenggen Xu,Yanming Cao,Xiao Zhu,Zhimin Jiang,Zhuangjun Fan,Weizhong Qian,Fei Wei,Jinsen Gao
Journal of Materials Chemistry A Pub Date : 10/08/2012 00:00:00 , DOI:10.1039/C2TA00140C
Abstract

We present a novel approach to fabricate flexible graphene papers using chemical vapor deposition (CVD) derived graphene. Expanded vermiculite was used as a layered template in the CVD process to produce bulk materials containing graphene sheets of the order of hundreds of microns at a gram scale. Meshes or carbon nanotubes can be introduced into the graphene sheets by template pretreating. Owing to the large sheet size, the as-obtained graphene sheets were easily fabricated into flexible graphene papers with low surface density and good conductivity, which exhibited greatly enhanced reversible capacity (1350 mA h g−1 at 50 mA g−1) and cycling performance as anodes for lithium rechargeable batteries as compared to the graphene papers fabricated using reduced graphene oxide.

Graphical abstract: Chemical vapor deposition derived flexible graphene paper and its application as high performance anodes for lithium rechargeable batteries
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