Defect-rich carbon-supported Pt nanoparticles via Joule heating for enhanced oxygen reduction

Abstract

Intrinsic defect-rich carbon is prepared via alkali-assisted pyrolysis of C₆₀. Via Joule heating, this defective carbon yields Pt particles with an ultrafine size of 2.5 nm within seconds. Due to the favorable defect-induced electron transfer, this Pt catalyst shows significantly enhanced activity and stability towards alkaline oxygen reduction.