Journal
MATERIALS LETTERS
Volume 132, Issue -, Pages 317-321Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2014.05.211
Keywords
Sol-gel preparation; Crystal growth; Manganese dioxide; Nanowires; Nanorods
Funding
- 863 Hi-tech Research and Development Program of China [Y318091120]
- National Natural Science Foundation of China [51002154]
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A low-temperature sol-gel process associated with different surfactants in ethanol solvent was applied to prepare ultrafine MnO2 nanowires and nanorods. The surfactants used in the synthesis procedure are crucial for the structure of products. Highly dispersed MnO2 nanowires was formed by assistance of cetyltrimethyl ammonium bromide while hierarchical particles assembled with nanowires were synthesized by usage of pluronic P123 triblock copolymer or Polyvinyl pyrrolidone. The free-standing sheet like structure aggregated with nanorods was obtained by using sodium dodecyl sulfate as a surfactant. All samples were characterized by SEM, TEM, XRD and the results indicated these MnO2 ultrafine nanostructures could be expediently produced by this facile method. (C) 2014 Elsevier B.V. All rights reserved.
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