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Issue 13, 2018
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Biotemplating: a sustainable synthetic methodology for Na-ion battery materials

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Abstract

Dextran biotemplating is a novel, sustainable and reduced-temperature synthetic approach that allows a high level of control over the size and shape of particles formed. This article discusses the application of this technique to the synthesis of an important candidate sodium-ion positive electrode material, Na2/3Ni1/3Mn2/3O2 (or ‘NNM’), with a high theoretical specific capacity (173 mA h g−1). While a solid state reference sample prepared at 850 °C exhibited a specific capacity of ∼80 mA h g−1 after 10 cycles, samples made via our dextran biotemplating route with final calcination at 550 °C for 12 h showed a large and significant improvement at 103.1 mA h g−1, under the same operating conditions.

Graphical abstract: Biotemplating: a sustainable synthetic methodology for Na-ion battery materials

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Article information


Submitted
20 Oct 2017
Accepted
11 Dec 2017
First published
11 Dec 2017

J. Mater. Chem. A, 2018,6, 5346-5355
Article type
Paper

Biotemplating: a sustainable synthetic methodology for Na-ion battery materials

S. Zilinskaite, A. J. R. Rennie, R. Boston and N. Reeves-McLaren, J. Mater. Chem. A, 2018, 6, 5346
DOI: 10.1039/C7TA09260A

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