reviewnpj Computational MaterialsJul 19, 2019GOLD OA

A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts

Chinese Academy of Sciences · Shanghai Institute of Ceramics · +3 more institutions

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Abstract

Abstract The sluggish kinetics of Oxygen Reduction Reaction (ORR) at the cathode in proton exchange membrane fuel cells or metal-air batteries requires highly effective and stable electrocatalysts to boost the reaction. The low abundance and high price of Pt-based electrocatalysts hamper the widespread application of proton exchange membrane fuel cells and metal-air batteries. As promising alternatives, metal-free carbon materials, especially upon doping heteroatoms or creating defects demonstrated excellent ORR activity, which is as efficient as or even superior to commercial platinum on carbon. Significant progress on the development of advanced carbon materials as highly stable and durable catalysts has…

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