Crystallinity and morphological evolution of hydrothermally synthesized potassium manganese oxide nanowires

Haris, M.F.L., Yin, C-Y, Jiang, Z-T, Goh, B-M, Chen, X., Al-Masry, W.A., Abukhalaf, A.M., El-Harbawi, M., Huang, N.M. and Lim, H.N. (2013) Crystallinity and morphological evolution of hydrothermally synthesized potassium manganese oxide nanowires. Ceramics International, 40 (1 PART A). pp. 1245-1250.

Abstract

Potassium manganese oxide (KMn8O16) nanowires were synthesized using a customized hydrothermal method and characterized using scanning-electron microscopy, X-ray diffractometry and thermogravimetric analysis to determine the effects of reaction temperatures and molar ratio of reactants on the crystallinity and morphology of the synthesized nanowires. It was established that increasing the stoichiometric portion of potassium precursors increased the average nanowire diameter though such effect was comparatively less prominent in terms of reaction temperature. Deficient supply of potassium inhibited nanowires growth in which only KMn8O16 (cryptomelane) growth orientations of (211), (301) and (600) were observed along with traces of MnO2, resulting in a wool-like nanowires suspension.

Item Type:	Journal Article
Murdoch Affiliation(s):	School of Engineering and Information Technology School of Veterinary and Life Sciences
Publisher:	Elsevier Ltd
Copyright:	© 2013 Published by Elsevier Ltd.
URI:	http://researchrepository.murdoch.edu.au/id/eprint/15833

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