Citation
Haris, Mohd Fathi Lubis and Yin, Chun Yang and Jiang, Zhong Tao and Goh, Bee Min and Chen, Xi and Al-Masry, Waheed A. and Abukhalaf, Aziz M. and El-Harbawi, Mohanad and Huang, Nay Ming and Lim, Hong Ngee
(2014)
Crystallinity and morphological evolution of hydrothermally synthesized potassium manganese oxide nanowires.
Ceramics International, 40 (1; pt.A).
pp. 1245-1250.
ISSN 0272-8842; ESSN: 1873-3956
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.
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