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|Title:||Template-free synthesis of SnO2 hollow nanostructures with high lithium storage capacity|
|Citation:||Lou, X.W., Wang, Y., Yuan, C., Lee, J.Y., Archer, L.A. (2006-09-05). Template-free synthesis of SnO2 hollow nanostructures with high lithium storage capacity. Advanced Materials 18 (17) : 2325-2329. ScholarBank@NUS Repository. https://doi.org/10.1002/adma.200600733|
|Abstract:||A simple one-pot template-free synthesis of SnO2 hollow nanostructures, based on an inside-out Ostwald ripening mechanism, was analyzed. The synthesis was performed in an ethanol-water mixed solvent using potassium stannate as the precursor. It was found that the precursor concentration has a dramatic effect on both the morphology and size of the product in template-free synthesis. The precursor concentration when reduced, the product consisted entirely of discrete hollow nanospheres with a diameter in the range 5--200nm and wall thickness of about 10nm. The SAED pattern confirms that these hollow nanospheres were polycrystalline tetragonal SnO2 and a higher concentration produced similar core/shell hollow nanoparticles but with a larger size. The results show that the as-prepared SnO2 hollow nanospheres exhibit superior lithium storage capacity and cycle performance when used as anode materials in lithium-ion batteries.|
|Source Title:||Advanced Materials|
|Appears in Collections:||Staff Publications|
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