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1. Preparation of nitrogen-doped carbon nanotube arrays and their catalysis towards cathodic oxygen reduction in acidic and alkaline media

Author

Mo, Zaiyong, Liao, Shijun, Zheng, Yuying, and Fu, Zhiyong

Subjects
*NITROGEN, *DOPED semiconductors, *CARBON nanotubes, *CATALYSIS, *OXIDATION-reduction reaction, *CATHODES, *ALKALINE earth metals, *CHEMICAL vapor deposition, *FERROCENE, *IMIDAZOLES, *X-ray photoelectron spectroscopy
Abstract

Abstract: Nitrogen-doped carbon nanotube (N-CNT) arrays were prepared by chemical vapor deposition, using ferrocene as the catalyst precursor and imidazole as the carbon and nitrogen precursor. For the reduction of oxygen, the N-CNTs showed excellent electrocatalytic activity in both acidic and alkaline media. The N-CNTs were characterized by scanning and transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and elemental analysis. The samples had a high nitrogen content (8.54at.%) and a bamboo-like structure, and their activity varied according to the amount of pyridinic nitrogen they contained. [Copyright &y& Elsevier]

Published
2012
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