Facile synthesis of Ag nanowires/mesoporous TiO₂core–shell nanocables with improved properties for lithium storage

Abstract

In this paper, mesoporous structured TiO 2 layer coating Ag nanowire coaxial nanocable (denoted as Ag/TiO 2 ) was successfully fabricated through a facile sol-gel method combined with hydrothermal 5 treatment process and short post-annealing procedure. The composite nanostructures show the unique feature of a uniform core-shell structure with high crystalline nanocrystals, small size (∼6 nm), uniform mesoporous (∼9 nm), high surface areas (∼93.6 m 2 g -1 ) and highly conductive Ag nanowire favor excellent electrochemical performance of the Ag/TiO 2 nanocables electrode. The resultant Ag/TiO 2 nanocable could deliver superior lithium storage capability (a stable reversible capacity of ∼160 mA h g -1 10 after 230 cycles at a current density of 1 C).

Heterogeneous TiO2@Nb2O5 composite as a high-performance anode for lithium-ion batteries

“…Gu et al . reported that Ag nanowires/mesoporous TiO 2 delivered a reversible capacity of ~160 mA h g −1 after 230 cycles at a current density of 1 C 31 .…”