Preparation and Growth Mechanism of Niobium Oxide Microcones by the Anodization Method

Jianling Zhao, Xixin Wang, Rongqing Xu, Yingjuan Mi, Yangxian Li

Electrochemical and Solid-State Letters · 2007 · 50 citations · 19 references

Concepts

Abstract

The formation of niobium oxide microcones on niobium substrates was investigated in electrolytes. The microstructure of the layers depends strongly on the concentration, the formation potential, and the anodization time. Microcones can be formed under a range of experimental conditions. Electrochemical determination and scanning electron microscopy indicate the microcones were formed due to the fast expansion of the oxide volume and the electric break under electric field. X-ray diffraction results verify the formation of . A possible growth mechanism has also been presented on the basis of experiments.

References

19