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Ultra-rapid microwave synthesis of Li3-x-yMxN (M = Co, Ni and Cu) nitridometallates

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<mark>Journal publication date</mark>1/11/2015
<mark>Journal</mark>Inorganic Chemistry Frontiers
Issue number11
Volume2
Number of pages6
Pages (from-to)1045-1050
Publication StatusPublished
Early online date23/09/15
<mark>Original language</mark>English

Abstract

Single phase nitridometallates Li3−x−yMxN (0.05 ≤ x ≤ 0.27; M = Co, Ni and Cu) with potential use as negative electrodes in lithium (Li+) ion batteries have been synthesised in <10 minutes via solid state reactions in a single mode cavity microwave reactor without an external susceptor. Reaction times are reduced by up to four orders of magnitude over previous synthetic methods. A combination of powder X-ray and neutron diffraction has provided detailed crystal structures of the vacancy-disordered nitrides. The electrochemical performance of these materials is comparable to that observed in conventionally-heated analogues.