%0 Journal Article
%A Chu, Chenxiao
%A Yang, Jing
%A Zhang, Qianqian
%A Wang, Nana
%A Niu, Feier
%A Xu, Xuena
%A Yang, Jian
%A Fan, Weiliu
%A Qian, Yitai
%D 2017
%T Biphase-Interface
Enhanced Sodium Storage and Accelerated Charge Transfer: Flower-Like
Anatase/Bronze TiO2/C as an Advanced Anode Material for
Na-Ion Batteries
%U https://acs.figshare.com/articles/journal_contribution/Biphase-Interface_Enhanced_Sodium_Storage_and_Accelerated_Charge_Transfer_Flower-Like_Anatase_Bronze_TiO_sub_2_sub_C_as_an_Advanced_Anode_Material_for_Na-Ion_Batteries/5684419
%R 10.1021/acsami.7b13382.s001
%2 https://acs.figshare.com/ndownloader/files/9950512
%K anatase
%K material
%K capacity
%K electrochemical impedance spectra
%K sodium-ion batteries
%K interface
%K Biphase-Interface Enhanced Sodium Storage
%K Advanced Anode Material
%K mA
%K Na-Ion Batteries Flower-like assembly
%K bronze TiO 2
%K anode
%K performance
%X Flower-like
assembly of ultrathin nanosheets composed of anatase and bronze TiO2 embedded in carbon is successfully synthesized by a simple
solvothermal reaction, followed with a high-temperature annealing.
As an anode material in sodium-ion batteries, this composite exhibits
outstanding electrochemical performances. It delivers a reversible
capacity of 120 mA h g–1 over 6000 cycles at 10
C. Even at 100 C, there is still a capacity of 104 mA h g–1. Besides carbon matrix and hierarchical structure, abundant interfaces
between anatase and bronze greatly enhance the performance by offering
additional sites for reversible Na+ storage and improving
the charge-transfer kinetics. The interface enhancements are confirmed
by discharge/charge profiles, rate performances, electrochemical impedance
spectra, and first-principle calculations. These results offer a new
pathway to upgrade the performances of anode materials in sodium-ion
batteries.
%I ACS Publications