In situ synthesis of TiO2(B) nanotube/nanoparticle composite anode materials for lithium ion batteries
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Ng, Alan M. C.
Djurisic, Aleksandra B.
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Titania nanotubes were prepared by a simple hydrothermal route. Their electrochemical performance has been examined in detail and compared to TiO2(B) nanoparticles, TiO2 anatase and P25 titania nanoparticles. The cycling and rate performance of TiO2 nanotubes is superior to both types of nanoparticles, and it can be further improved by an in situ titanium precursor treatment, which results in the formation of TiO2 nanoparticles on/between the nanotubes. The obtained specific capacity after 200 cycles at 0.2 A g(-1) charge/discharge rate remained above 130 mAh g(-1). The enhanced lithium storage properties of these samples can be attributed to their unique morphology and crystal structure.
Keywords:lithium ion battteries / TiO2(B) / Solution treatment / TiO2 composite
Source:Nanotechnology, 2015, 26, 42
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-45020)
- Strategic Research Theme, University Development Fund, Grant HKU and RGC GRF [HKU 701910], Guangdong Science and Technology Development Plan [2010A090602002], Shenzhen Science and Technology Commission [JCYJ20120830154526542], National Science Fund of China