Carbon-filament-entangled lithium iron phosphate/carbon composite produced in partially reductive atmosphere: Dual role of the iron as source material and catalyst

Yao, J., Wang, J., Zhang, D.H., Gregory, D. , Ma, C. and Wang, L. (2013) Carbon-filament-entangled lithium iron phosphate/carbon composite produced in partially reductive atmosphere: Dual role of the iron as source material and catalyst. Ceramics International, 39(2), pp. 2175-2181. (doi: 10.1016/j.ceramint.2012.08.001)

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Abstract

Various morphologies of carbon-LiFePO4 composites can be achieved via the reaction of the appropriate iron or iron oxalate and hydrated phosphates with sucrose as the source of carbon in the Ar/H2 or Ar atmosphere. When sintering in Ar condition, the resulting composite comprised a LiFePO4 core coated with a carbon shell. By contrast, Ar/H2-derived composites produced under a partially reductive atmosphere consisted of olivine particles enmeshed in a carbon filament matrix with the catalytic effect of Fe. Specific capacities as high as 140 mA h g−1 at 1 C and 93 mA h g−1 at 10 C were obtained in carbon-filament-entangled LiFePO4 composite.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Yao, Mr Jinhan and Gregory, Professor Duncan
Authors: Yao, J., Wang, J., Zhang, D.H., Gregory, D., Ma, C., and Wang, L.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Ceramics International
ISSN:0272-8842
ISSN (Online):1873-3956

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