A Novel Non-Metal Oxygen Reduction Electrocatalyst Based on Platelet Carbon Nanofiber

Abstract:

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A novel non-metal electrocatalyst based on platelet carbon nanofiber (p-CNF) is prepared, and a palladium electrocatalyst supported on activated carbon (AC) is also synthesized. The physico-chemistry properties of the p-CNF and palladium catalyst on AC (Pd/AC) are investigated by high resolution transmission electron microscopy, N2 physisorption and Raman spectra analysis. From cyclic voltammetric studies, it is found that p-CNF is more active than Pd/AC in acidic media. The p-CNF shows a more positive oxygen reduction reaction (ORR) onset reduction potential and a higher oxygen reduction current density than Pd/AC. Moreover, the ORR is controlled by a surface reaction process when Pd/AC is used, while it becomes diffusion controlled when p-CNF is used.

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Periodical:

Edited by:

Jin-An Wang, Guozhong Cao and José Manuel Domínguez

Pages:

264-270

DOI:

10.4028/www.scientific.net/AMR.132.264

Citation:

J. S. Zheng et al., "A Novel Non-Metal Oxygen Reduction Electrocatalyst Based on Platelet Carbon Nanofiber", Advanced Materials Research, Vol. 132, pp. 264-270, 2010

Online since:

August 2010

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$35.00

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