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http://dx.doi.org/10.5229/JKES.2011.14.4.196

Fabrication of Niobium Oxide Nanorods by the Anodization Method  

Jung, Eun-Hye (Department of Chemical Engineering, Inha University)
Chang, Jeong-Ho (Future Convergence Ceramic Division, Korea Institute of Ceramic Engineering and Technology)
Jeong, Bong-Yong (Future Convergence Ceramic Division, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Electrochemical Society / v.14, no.4, 2011 , pp. 196-200 More about this Journal
Abstract
The formation of niobium oxide microcones on niobium substrates was investigated in NaF to the HF electrolytes. This condition builds on the uniqueness of the microstructures niobium oxide. The dimensions and integrity of the bulk microstructures were found to be strongly dependent on potential, temperature, electrolyte composition, and anodization time. The anodic oxide was initially amorphous at all temperatures, but crystalline oxide nucleated during anodization. From XRD patterns of the anodized specimens, the microcones consisted of crystalline $Nb_2O_5$. We demonstrated niobium oxide microcone structures with nanorods. The anodized niobium oxide microcone texture revealed nanorod bundles. The surface of $Nb_2O_5$ microcones is very regular and has a nano-scale. The surface morphologies of the nanorods were examined using FE-SEM. EDS analyses show that the anodically prepared niobium oxide consists of $Nb_2O_5$. The aim of this study is to find the condition of forming the favorable nanorods by anodization method.
Keywords
Niobium oxide; Anodization; Micro-cone; Crystalline; Nano-rod;
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