Enhancing Electrocatalytic Oxygen Reduction on MnO2 with Vacancies

Authors

  • Prof. Dr. Fangyi Cheng,

    Corresponding author
    1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
    • Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
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  • Tianran Zhang,

    1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
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  • Yi Zhang,

    1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
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  • Jing Du,

    1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
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  • Xiaopeng Han,

    1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
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  • Prof. Dr. Jun Chen

    Corresponding author
    1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
    • Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Eduction), College of Chemistry, Nankai University, Tianjin 300071 (China)
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  • This work was supported by the National Programs 973 (2011CB935900) and 863 (2011AA050704), the NSFC (21231005), and the 111 Project (B12015).

Abstract

original image

Nanokristallines MnO2 mit Sauerstoff-Fehlstellen wurde nach einem einfachen Verfahren durch Erhitzen des reinen Oxids in Ar oder O2 erhalten. Experimente und Rechnungen belegen, dass die katalytische Aktivität von MnO2 in der Sauerstoffreduktion durch die Einführung von Sauerstoff-Fehlstellen in mäßiger Konzentration zunimmt.

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