Journal
CHEMICAL ENGINEERING JOURNAL
Volume 332, Issue -, Pages 57-65Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.09.044
Keywords
Sodium-ion battery; Titanium dioxide; Exposed (001) facets; Carbon coating; Rate performance
Categories
Funding
- National Nature Science Foundation of China [21671200, 21771062]
- Fujian Provincial Natural Science Foundation of China [2015J01072]
- Hunan Provincial Science and Technology Plan Project [2016TP1007, 2017TP1001]
- Science and Technology Plan Project of Changsha [hk1601153]
- Opening Project of Material Corrosion and Protection Key Laboratory of Sichuan Province of China [2016CL04, 2017CL17]
- Innovation-Driven Project of Central South University [2016CXS009]
Ask authors/readers for more resources
Surface engineering plays a key role in enhancing the electrochemical performance for energy storage materials. Herein, TiO2 nanosheets with highly exposed (0 0 1) facets are synthesized by a HF-induced hydrothermal process and TiO2@C composite is obtained by the following carbonation reaction of phenolic resin. As indicated, TiO2 nanosheets are averagely 50 nm wide and 4 nm thick and a homogeneous and ultrathin carbon layer (3 nm) is coated on the nanosheets. When used as an anode in Na-ion batteries, it delivers a high stable specific capacity of 264.9 mAh g(-1) after 100 cycles at 100 mA g(-1) and maintains a considerable specific capacity of 92.9 mAh g(-1) after 4000 cycles even at a high current density of 5 A g(-1). The superior sodium storage performance and ultralong cycling life of the as-prepared TiO2@C should be mainly attributed to the synergistic effect of high-energy facet designing and gorgeous carbon layer coating.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available