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Published on: February 5, 2019
One-dimensional SnO(2) nanostructures: facile morphology tuning and lithium storage properties
Yong Wang1, Minghong Wu, Zheng Jiao
1School of Environmental and Chemical Engineering, Shanghai University, Shanghai, People's Republic of China. yongwang@shu.edu.cn
Nanotechnology
|August 5, 2009
Summary
Tin dioxide (SnO2) nanostructures were synthesized for lithium-ion battery applications. Tubular nanostructures demonstrated excellent reversible lithium storage capacity, retaining significant charge after multiple cycles.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Developing advanced anode materials is crucial for improving lithium-ion battery performance.
- One-dimensional nanostructures offer unique advantages for electrochemical energy storage.
Purpose of the Study:
- To develop a facile synthesis method for diverse tin dioxide (SnO2) nanostructures.
- To investigate the suitability of different SnO2 morphologies for reversible lithium ion (Li+) storage.
Main Methods:
- Thermally treating an alumina template loaded with tin tetrachloride (SnCl4) aqueous solution in air.
- Tuning the interior cavity fraction of nanostructures by varying precursor concentration.
- Evaluating electrochemical performance for Li+ storage through charge-discharge cycling.
Main Results:
- Successfully synthesized one-dimensional SnO2 nanostructures including nanotubes, nanotube-nanorod hybrids, and nanorods.
- Demonstrated that the fraction of interior cavity in SnO2 nanostructures can be controlled.
- Identified fully tubular SnO2 nanostructures as optimal for reversible Li+ storage.
Conclusions:
- The facile synthesis method yields tunable SnO2 nanostructures for energy storage.
- SnO2 nanotubes exhibit promising performance for reversible lithium ion storage, retaining 654 mA h g(-1) after 40 cycles from an initial capacity of 976 mA h g(-1).
