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Xavier Lepró, Raquel Ovalle-Robles, Márcio D. Lima, Ana Laura Elías, Mauricio Terrones and Ray H. Baughman Catalytic Twist-Spun Yarns of Nitrogen-Doped Carbon Nanotubes Advanced Functional Materials 22

Version of Record online: 19 DEC 2011 | DOI: 10.1002/adfm.201102114

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Weavable, sewable, and knottable yarns of N-doped nanotubes are fabricated by twist insertion into plasma-treated, free-standing sheets of oriented multiwalled carbon nanotubes. These yarns exhibit high specific strengths, large capacitances, and tunable catalytic activity for electrochemically driven oxygen reduction reactions. Catalytic activity as a function of processing conditions is correlated with nitrogen chemical species.

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