Article ID Journal Published Year Pages File Type
8015131 Materials Letters 2018 14 Pages PDF
Abstract
We developed sulfur-doped porous graphene frameworks as a highly efficient metal-free electrocatalyst for oxygen reduction reaction (ORR) which was prepared through MgO template directed approach by in situ sulfur doping based on the pyrolysis of p-methylbenzenesulfonic acid. The as-obtained electrocatalyst features distinctive porous graphene frameworks and uniform distribution of sulfur dopants with highly active sites. When employed for ORR, such catalyst shows pronounced catalytic activity, improved stability and better resistance toward methanol crossover than those of the commercial Pt/C, and a nearly four-electron transfer number in alkaline media.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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