A simple method of fabricating large-area {alpha}-MnO{sub 2} nanowires and nanorods
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China) and Department of Chemistry, Zaozhuang University, Zaozhuang 277100 (China)
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026 (China)
{alpha}-MnO{sub 2} nanowires or nanorods have been selectively synthesized via the hydrothermal method in nitric acid condition. The {alpha}-MnO{sub 2} nanowires hold with average diameter of 50 nm and lengths ranging between 10 and 40 {mu}m, using MnSO{sub 4}.H{sub 2}O as manganese source; meanwhile, {alpha}-MnO{sub 2} bifurcate nanorods with average diameter of 100 nm were obtained by adopting MnCO{sub 3} as starting material. The morphology of {alpha}-MnO{sub 2} bifurcate nanorods is the first one to be reported in this paper. X-ray powder diffraction (XRD), field scanning electron microscopy (FESEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM) were used to characterize the products. Experimental results indicate that the concentrated nitric acid plays a crucial role in the phase purity and morphologies of the products. The possible formation mechanism of {alpha}-MnO{sub 2} nanowires and nanorods has been discussed. - Graphical abstract: {alpha}-MnO{sub 2} nanowires or nanorods have been selectively synthesized via the hydrothermal method in nitric acid condition. The {alpha}-MnO{sub 2} nanowires hold with average diameter of 50 nm and lengths ranging between 10 and 40 {mu}m, using MnSO{sub 4}.H{sub 2}O as manganese source; meanwhile, {alpha}-MnO{sub 2} bifurcate nanorods with average diameter of 100 nm were obtained by adopting MnCO{sub 3} as starting material.
- OSTI ID:
- 20905308
- Journal Information:
- Journal of Solid State Chemistry, Vol. 179, Issue 6; Other Information: DOI: 10.1016/j.jssc.2006.02.028; PII: S0022-4596(06)00123-X; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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