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Active and stable carbon nanotube/nanoparticle composite electrocatalyst for oxygen reduction

Author

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  • Hoon T. Chung

    (Los Alamos National Laboratory)

  • Jong H. Won

    (Los Alamos National Laboratory)

  • Piotr Zelenay

    (Los Alamos National Laboratory)

Abstract

Nanostructured carbon-based materials, such as nitrogen-doped carbon nanotube arrays, Co3O4/nitrogen-doped graphene hybrids and carbon nanotube–graphene complexes have shown respectable oxygen reduction reaction activity in alkaline media. Although certainly promising, the performance of these materials does not yet warrant implementation in the energy conversion/storage devices utilizing basic electrolytes, for example, alkaline fuel cells, metal-air batteries and certain electrolysers. Here we demonstrate a new type of nitrogen-doped carbon nanotube/nanoparticle composite oxygen reduction reaction electrocatalyst obtained from iron acetate as an iron precursor and from cyanamide as a nitrogen and carbon nanotube precursor in a simple, scalable and single-step method. The composite has the highest oxygen reduction reaction activity in alkaline media of any non-precious metal catalysts. When used at a sufficiently high loading, this catalyst also outperforms the most active platinum-based catalysts.

Suggested Citation

  • Hoon T. Chung & Jong H. Won & Piotr Zelenay, 2013. "Active and stable carbon nanotube/nanoparticle composite electrocatalyst for oxygen reduction," Nature Communications, Nature, vol. 4(1), pages 1-5, October.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms2944
    DOI: 10.1038/ncomms2944
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    Cited by:

    1. Lo Vecchio, Carmelo & Aricò, Antonino Salvatore & Monforte, Giuseppe & Baglio, Vincenzo, 2018. "EDTA-derived CoNC and FeNC electro-catalysts for the oxygen reduction reaction in acid environment," Renewable Energy, Elsevier, vol. 120(C), pages 342-349.
    2. Raman Vedarajan & Rengarajan Balaji & Krishnan Ramya, 2023. "Anion exchange membrane fuel cell: New insights and advancements," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 12(3), May.
    3. Nandan, Ravi & Goswami, Gopal Krishna & Nanda, Karuna Kar, 2017. "Direct synthesis of Pt-free catalyst on gas diffusion layer of fuel cell and usage of high boiling point fuels for efficient utilization of waste heat," Applied Energy, Elsevier, vol. 205(C), pages 1050-1058.

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