Dielectric Barrier Discharge Plasma Reduced Pt Catalysts Supported on Activated Carbon and their Electrocatalytic Activity

Abstract:

Atmospheric-pressure dielectric barrier discharge (DBD) plasma was used to fabricate Pt/C electrocatalysts. The influences of the pretreatment of the activated carbon support and the preparing method on the properties of the Pt/C electrocatalysts were investigated. The composition of the Pt/C samples was characterized by X-ray diffraction (XRD). The electrocatalytic activity of the Pt/C samples was evaluating by measuring the cyclic voltammograms. The results showed that higher dispersion of Pt nanoparticles was obtained on the activated carbon support pretreated by HNO₃, and higher reduction rate of Pt ions was obtained in Pt/C prepared by DBD plasma. As a consequence, the Pt/C samples with the activated carbon support pre-oxidized by HNO₃ and reduced by DBD plasma exhibited the highest electrocatalytic activity.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 340-343
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.340
• Online since: July 2014
• Authors: Lan Bo Di*
• Keywords: Atmospheric-Pressure Cold Plasma, Dielectric Barrier Discharge (DBD), Electrocatalyst, Pt/C, Supported Metal Catalyst

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