Berlin 2012 – scientific programme

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O: Fachverband Oberflächenphysik

O 76: Nanostructures at surfaces IV

O 76.6: Talk

Thursday, March 29, 2012, 17:15–17:30, MA 042

High performance super-capacitors based on template-prepared one-dimensional MnO₂ nanostructures — •Fabian Grote^1,2, Yan Mi^1,2, Huaping Zhao^1,2, and Yong Lei^1,2 — ¹Institut für Physik & Zentrum für Mikro- und Nanotechnologien, Technische Universität Ilmenau, Germany — ²Institut für Material Physik, Westfälische Wilhelms-Universität Münster, Germany

MnO₂ is a promising candidate for future applications in high performance super-capacitors, since it possesses a high specific capacitance. A way of selectively control the growth of highly ordered MnO₂ nanowire and nanotube arrays for fabricating a super-capacitor electrode will be demonstrated using an electrochemical deposition technique in combination with porous aluminium oxide as a template. The morphology is investigated by field emission scanning electron microscopy and transmission electron microscopy. Electrochemical properties of different structures will be shown and compared.