Nitrogen-doped carbon nanotubes as a cathode catalyst for the oxygen reduction reaction in alkaline medium |
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| Authors: | Tharamani C. Nagaiah Shankhamala Kundu Michael Bron Martin Muhler Wolfgang Schuhmann |
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| Affiliation: | 1. Analytische Chemie – Elektroanalytik & Sensorik, Ruhr-Universität Bochum, D-44780 Bochum, Germany;2. Laboratory of Industrial Chemistry, Ruhr-Universität Bochum, D-44780 Bochum, Germany |
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| Abstract: | A new approach to synthesize nitrogen-doped carbon nanotubes (NCNTs) as catalysts for oxygen reduction by treating oxidized CNTs with ammonia is presented. The surface properties and oxygen reduction activities were characterized by cyclic voltammetry, rotating disk electrode and X-ray photoelectron spectroscopy. NCNTs treated at 800 °C show improved electrocatalytic activity for oxygen reduction as compared with commercially available Pt/C catalysts. |
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