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Dresden 2011 – scientific programme

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O: Fachverband Oberflächenphysik

O 52: Nanostructures at surfaces: Wires, tubes

O 52.7: Talk

Wednesday, March 16, 2011, 16:30–16:45, WIL B122

Template-Fabrication of Highly Ordered MnO2 One-Dimensional Nanostructure Arrays and their Device Applications as Super-Capacitors — •Fabian Grote1,2, Jingjing Xu1,2, Huaping Zhao1,2, and Yong Lei1,21Institute of Materials Physics, University of Muenster — 2Center for Nanotechnology, Muenster 48149, Germany

MnO2 is a promising candidate for future applications in super-capacitors, especially for nano-structured MnO2 that might result in a high specific capacitance of the super-capacitor. Moreover, it is highly desirable to prepare highly ordered arrays of MnO2 nanostructures so that the properties (e.g., electrochemical property) can be controlled. Recently, using anodic alumina membranes as templates, we fabricated regular arrays of MnO2 one-dimensional nanostructures, including nanotubes and nanowires. The morphology and microstructures of the synthesized nanostructures were characterized by scanning electron microscopy and transmission electron microscopy. Electrochemical properties of the highly ordered MnO2 nanostructure arrays were investigated for super-capacitor application.

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