title: Supercapacitor electrodes with especially high rate capability and cyclability based on a novel Pt nanosphere and cysteine-generated graphene.
abstract: In the present work, supercapacitors based on graphene/Pt films show especially high rate capability (120 F g(-1) even at 50 A g(-1)) and cyclability (no attenuation over 10,000 cycles) and peculiar nanosphere morphology after electrochemical cycling. Furthermore, supercapacitors based on the graphene powder with a binder exhibit high specific capacitance (249 F g(-1) at 0.1 A g(-1)), long cycle life (no attenuation over 40,000 cycles) and high rate capability (150 F g(-1) even at 50 A g(-1)), which are much better than those of most graphene electrode materials. These indicate the great potential of the cysteine reduced graphene electrodes in energy storage.
authors: Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
authors: Dacheng
authors: D
authors: Zhang
authors: Xiong
authors: X
authors: Zhang
authors: Yao
authors: Y
authors: Chen
authors: Changhui
authors: C
authors: Wang
authors: Yanwei
authors: Y
authors: Ma
authors: Huanli
authors: H
authors: Dong
authors: Lang
authors: L
authors: Jiang
authors: Qing
authors: Q
authors: Meng
authors: Wenping
authors: W
authors: Hu
mesh_terms: D003545:Cysteine / Q000737:chemistry*; D025802:Electric Capacitance; D055664:Electrochemical Techniques; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D054118:Nanospheres / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D010984:Platinum / Q000737:chemistry*
chemical_list: D010087:Oxides; D010984:Platinum; D006108:Graphite; D003545:Cysteine