title: Graphene quantum dots-three-dimensional graphene composites for high-performance supercapacitors.
abstract: Graphene quantum dots (GQDs) have been successfully deposited onto the three-dimensional graphene (3DG) by a benign electrochemical method and the ordered 3DG structure remains intact after the uniform deposition of GQDs. In addition, the capacitive properties of the as-formed GQD-3DG composites are evaluated in symmetrical supercapacitors. It is found that the supercapacitor fabricated from the GQD-3DG composite is highly stable and exhibits a high specific capacitance of 268 F g(-1), representing a more than 90% improvement over that of the supercapacitor made from pure 3DG electrodes (136 F g(-1)). Owing to the convenience of the current method, it can be further used in other well-defined electrode materials, such as carbon nanotubes, carbon aerogels and conjugated polymers to improve the performance of the supercapacitors.
authors.affiliation: Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing 100081, China. Zhipan@bit.edu.cn lqu@bit.edu.cn.
authors.forename: Qing
authors.initials: Q
authors.lastname: Chen
authors.forename: Yue
authors.initials: Y
authors.lastname: Hu
authors.forename: Chuangang
authors.initials: C
authors.lastname: Hu
authors.forename: Huhu
authors.initials: H
authors.lastname: Cheng
authors.forename: Zhipan
authors.initials: Z
authors.lastname: Zhang
authors.forename: Huibo
authors.initials: H
authors.lastname: Shao
authors.forename: Liangti
authors.initials: L
authors.lastname: Qu