Layer-by-Layer Self-Assembled Graphene Multilayer Films via Covalent Bonds for Supercapacitor Electrodes | Zendy

Xianbin Liu | Zendy; Na Wen | Zendy; Xiaoli Wang | Zendy; Yuying Zheng | Zendy

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Layer-by-Layer Self-Assembled Graphene Multilayer Films via Covalent Bonds for Supercapacitor Electrodes

Author(s) -

Xianbin Liu,

Na Wen,

Xiaoli Wang,

Yuying Zheng

Publication year - 2015

Publication title -

nanomaterials and nanotechnology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.412

H-Index - 21

ISSN - 1847-9804

DOI - 10.5772/60596

Subject(s) - graphene , materials science , supercapacitor , covalent bond , electrode , layer (electronics) , nanotechnology , oxide , capacitance , chemical engineering , electrochemistry , conjugated system , layer by layer , optoelectronics , composite material , polymer , organic chemistry , chemistry , engineering , metallurgy

To maximize the utilization of its single-atom thin nature, a facile scheme to fabricate graphene multilayer films via a layer-by-layer self-assembled process was presented. The structure of multilayer films was constructed by covalently bonding graphene oxide (GO) using p-phenylenediamine (PPD) as a covalent cross-linking agent. The assembly process was confirmed to be repeatable and the structure was stable. With the π-π conjugated structure and a large number of spaces in the framework, the graphene multilayer films exhibited excellent electrochemical performance. The uniform ultrathin electrode exhibited a capacitance of 41.71 μF/cm2 at a discharge current of 0.1 μA/cm2, and displayed excellent stability of 88.9 % after 1000 charge-discharge cycles

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