Self-Assembled TiO2-Graphene Hybrid Nanostructures for Enhanced Li-Ion Insertion

Publication Year
2009

Type

Journal Article
Abstract
We used anionic sulfate surfactants to assist the stabilization of graphene in aqueous solutions and facilitate the self-assembly of in situ grown nanocrystalline TiO2, rutile and anatase, with graphene. These nanostructured TiO2-graphene hybrid materials were used for investigation of Li-ion insertion properties. The hybrid materials showed significantly enhanced Li-ion insertion/extraction in TiO2. The specific capacity was more than doubled at high charge rates, as compared with the pure TiO2 phase. The improved capacity at high charge-discharge rate may be attributed to increased electrode conductivity in the presence of a percolated graphene network embedded into the metal oxide electrodes.
Journal
ACS Nano
Volume
3
Pages
907-914
Date Published
04/2009
Type of Article
Article
ISBN
1936-0851
Accession Number
WOS:000265618700023