Preparation and application of a titanium dioxide/graphene oxide anode material for lithium–ion batteries

• Published in: Journal of power sources 2015-12, Vol.299, p.286-292
• Main Authors: Siwińska-Stefańska, Katarzyna, Kurc, Beata
• Format: Article
• Language: English
• Subjects: Chemically-bonded; Cyclability; Graphene oxide; Li–ion battery; TiO2
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2015.09.017

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. •Paper describes properties of anode based on titania and graphene oxide.•It has been showed some physicochemical properties of the TiO2 nad TA/GO.•TA/GO was prepared via hydrothermal method nad TiO2 – via sol–gel method.•It has shown that capacity of the TA/GO depends on the current rate.•The TA/GO|Li system exhibits a long-life of more than 50 cycles.