• 文献标题:   Boosting lithium storage by facile functionalization of graphene oxide nanosheets via 2-aminoanthraquinone
  • 文献类型:   Article
  • 作  者:   CHEN PP, TAO WJ, HU MD, XU YL, ZHANG ZZ, YU HJ, FU XL, ZHANG CF
  • 作者关键词:   graphene oxide, 2aminoanthraquinone, high capacity, cycling stability
  • 出版物名称:   CARBON
  • ISSN:   0008-6223 EI 1873-3891
  • 通讯作者地址:  
  • 被引频次:   17
  • DOI:   10.1016/j.carbon.2020.08.064
  • 出版年:   2021

▎ 摘  要

In this work, we reported a novel and facile procedure for the functionalization of graphene oxide (GO) by using 2-aminoanthraquinone (AAQ), with a structure of AAQ molecules covalently grafted onto GO sheets. The as-prepared nanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscope (TEM), galvanostatic measurements, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Amazingly, the AAQ modified GO nanosheets showed an improved electrochemical performance, in terms of cycling performance and rate capability. Specifically, the nanosheets exhibited a high capacity of 467 mA h g(-1) at a current density of 5 A g(-1), and a specific capacity of 866 mAh g(-1) after 500 cycles at 500 mA g(-1). (C) 2020 Elsevier Ltd. All rights reserved.