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

Abstract:

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.

• Periodical: Advanced Materials Research (Volume 132)
• Pages: 264-270
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.132.264
• Online since: August 2010
• Authors: Jun Sheng Zheng, Xin Sheng Zhang, Sun Wen, Ping Li, Chun An Ma, Wei Kang Yuan
• Keywords: Cyclic Voltammetry (CV), Non-Metal Electrocatalyst, Oxygen Reduction Reaction, Platelet Carbon Nanofiber

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