Article ID Journal Published Year Pages File Type
185400 Electrochimica Acta 2014 6 Pages PDF
Abstract

In this paper, we demonstrate that oxygen-containing carbon nanoparticles (O-CNPs) obtained from diffusion flame display notable ORR electrocatalytic activities in alkali media. The O-CNPs were the incomplete combustion product of hydrocarbon fuels. Electrochemical results showed that the O-CNP catalyst prepared from n-hexane could display very positive ORR peak potential of -0.24 V vs. Ag/AgCl, which was higher than the reported oxygen-containing carbon materials and common carbon black of below -0.35 V. Moreover, the ORR peak potential was varied with the unsaturation degree of the hydrocarbon fuels. It was further proposed that the remarkable ORR electrocatalyic activities of the O-CNPs was attributed to semiquinone groups bonded to the edge of the graphitic carbon layer.

Graphical abstractOxygen-containing carbon nanoparticles (O-CNPs) were synthesized from diffusion flame of hydrocarbons and display notable electrocatalytic ORR activities in alkali media.Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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