Supramolecule-Inspired Fabrication of Carbon Nanoparticles In Situ Anchored Graphene Nanosheets Material for High-Performance Supercapacitors

• DOI: 10.1021/acsami.6b08511
• Publication Date: 2016-09-21T14:43:45Z
• Authors: Yulan Huang; Aimei Gao; Xiaona Song; Dong Shu; Fenyun Yi; Jie Zhong; Ronghua Zeng; Shixu Zhao; Tao Meng
• Keywords: Carbon fibers; Carbon Nanoparticles

The remarkable electrochemical performance of graphene-based materials has drawn a tremendous amount attention for their application in supercapacitors. Inspired by supramolecular chemistry, the hydrogel is prepared linking β-cyclodextrin to graphene oxide (GO). carbon nanoparticles-anchored nanosheets are then assembled after hydrothermal reduction and carbonization hydrogels; here, carbonized nanoparticles that uniformly anchored on nanosheets. Transmission electron microscopy reveals with several nanometers both sides nanosheets, X-ray diffraction spectra demonstrate interlayer spacing enlarged due among as-prepared material (C/r-GO-1:3) possesses high specific capacitance (310.8 F g–1, 0.5 A g–1), superior rate capability (242.5 10 excellent cycle stability (almost 100% 000 cycles, at scan 50 mV s–1). outstanding resulting C/r-GO-1:3 mainly attributed (i) presence nanoparticles, (ii) sheets, (iii) accelerated ion transport rates toward interior electrode material. supramolecule-inspired approach synthesis high-performance nanoparticles-modified sheets promising future energy storage devices.