• 文献标题:   Preparation and application of a titanium dioxide/graphene oxide anode material for lithium-ion batteries
  • 文献类型:   Article
  • 作  者:   SIWINSKASTEFANSKA K, KURC B
  • 作者关键词:   tio2, graphene oxide, cyclability, chemicallybonded, liion battery
  • 出版物名称:   JOURNAL OF POWER SOURCES
  • ISSN:   0378-7753 EI 1873-2755
  • 通讯作者地址:   Poznan Univ Tech
  • 被引频次:   14
  • DOI:   10.1016/j.jpowsour.2015.09.017
  • 出版年:   2015

▎ 摘  要

This paper describes the synthesis and physicochemical properties of a new type of titania/graphene oxide (TA/GO) composite. Titania powder was synthesized via the sol-gel method, and its surface was functionalized with N-2-(aminoethyl)-3-aminopropyltrimethoxysilane (AAPTS) to increase its adhesion to graphene oxide. Transmission electron microscopy (TEM), non-invasive back scattering (NIBS), porous structure parameters (low-temperature nitrogen sorption), degree of modification of titania and TA/GO determined by Fourier-transform infrared spectroscopy (FT-IR), impedance analysis, charging/discharging and cyclic voltammetry were carried out. At a current density of 50 mA g(-1), the good cyclability exhibited by the TA/GO anode can be readily retained at 370 mAh g(-1) after 50 cycles, which is outstanding among the TiO2 composites reported in the literature. (C) 2015 Elsevier B.V. All rights reserved.