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Supplementing cold plasma with heat enables doping and nano-structuring of metal oxides
journal contributionposted on 2014-09-01, 00:00 authored by D R De Celis, Frank ChenFrank Chen, Md Mokhlesur RahmanMd Mokhlesur Rahman, Tao Tao, D G McCulloch, M R Field, Peter LambPeter Lamb, Ying (Ian) ChenYing (Ian) Chen, Xiujuan Dai
Nitrogen doped SnO2 polycrystalline nanostructures were produced from commercial SnO powders in a new system that combines a low-temperature plasma with heating. The method has the potential to improve the initial efficiency and the cycling performance of SnO2 anodes in Li-ion batteries. With this system, the temperature of the SnO to SnO2 conversion was lowered from 430 to 320 °C, up to 5 at% of doped nitrogen was detected and a nano-scale polycrystalline structure was observed in the product. Combining heat and low-pressure plasma is a promising approach for the production and treatment of enhanced energy storage materials.