Tin-Tin Dioxide@Hollow Carbon Nanospheres Synthesized by Aerosol Catalytic Chemical Vapor Deposition for High-Density Lithium Storage

Title
Tin-Tin Dioxide@Hollow Carbon Nanospheres Synthesized by Aerosol Catalytic Chemical Vapor Deposition for High-Density Lithium Storage
Author(s)
변정훈김영우[김영우]
Keywords
NANOPARTICLES; FABRICATION; BATTERIES; ANODES
Issue Date
201406
Publisher
WILEY-V C H VERLAG GMBH
Citation
CHEMCATCHEM, v.6, no.6, pp.1567 - 1569
Abstract
The gas-phase self-assembly of Sn-SnO2@hollow carbon nanospheres (HCNSs) synthesized by floating catalytic chemical vapor deposition, as a new, facile, and scalable method, was performed, and the resultant nanospheres displayed an enhanced lithium storage performance. Freshly synthesized Sn nanoparticles [approximate to 25 nm in equivalent mobility diameter (EMD)] were incorporated quantitatively with dimethyl sulfide (DMS)-ethanol (EtOH) droplets (approximate to 45 nm in EMD) in the form of Sn/DMS-EtOH hybrid droplets (approximate to 42 nm in EMD). The hybrid droplets were employed to perform catalytic chemical vapor synthesis in a heated tubular reactor. It was observed that Sn-SnO2 particles with sizes between 3-6 nm were dispersed in the HCNSs (approximate to 25 nm in lateral dimension), and no bulky aggregates were visible. Its reversible capacity even increased up to approximate to 870 mA h g(-1) after 50 cycles, which is much higher than the conventional theoretical capacity of SnO2 (782 mA h g(-1)).
URI
http://hdl.handle.net/YU.REPOSITORY/32030http://dx.doi.org/10.1002/cctc.201402013
ISSN
1867-3880
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공과대학 > 기계공학부 > Articles
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