title: Sol-gel design strategy for ultradispersed TiO2 nanoparticles on graphene for high-performance lithium ion batteries.
abstract: The rational design and controllable synthesis of strongly coupled inorganic/graphene hybrids represents a long-standing challenge for developing advanced catalysts and energy-storage materials. Here, we report a simple sol-gel method toward creating ultradispersed TiO2 nanoparticles on graphene with an unprecedented degree of control based on the precise separation and manipulation of nanoparticles nucleated, grown, anchored, and crystallized and the reduction of graphene oxide (GO). The hybrid materials show ultradispersed anatase nanoparticles (~5 nm), ultrathin thickness (≤3 layers), and a high surface area of ~229 m(2)/g and exhibit a high specific capacity of ~94 mA h g(-1) at ~59 C, which is twice as that of mechanically mixed composites (~41 mA h g(-1)), demonstrating the potential of strongly synergistic coupling effects for advanced functional systems.
authors.affiliation: Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, and State Key Laboratory of Molecular Engineering of Polymers, Fudan University , Shanghai 200433, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Shanshan
authors.initials: S
authors.lastname: Feng
authors.forename: Jinxiu
authors.initials: J
authors.lastname: Wang
authors.forename: Zhenkun
authors.initials: Z
authors.lastname: Sun
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.forename: Yuhui
authors.initials: Y
authors.lastname: Li
authors.forename: Jianping
authors.initials: J
authors.lastname: Yang
authors.forename: Ahmed A
authors.initials: AA
authors.lastname: Elzatahry
authors.forename: Yongyao
authors.initials: Y
authors.lastname: Xia
authors.forename: Dongyuan
authors.initials: D
authors.lastname: Zhao