The　scarcity　and　high　cost　of　platinum-based　electrocatalysts　for　the　oxygen　reduction　reaction　(ORR)　has　limited　the　commercial　and　scalable　use　of　fuel　cells.　Heteroatom-doped　nanocarbon　materials　have　been　demonstrated　to　be　efficient　alternative　catalysts　for　ORR.　Here,　graphene　quantum　dots,　synthesized　from　inexpensive　and　earth-abundant　anthracite　coal,　were　self-assembled　on　graphene　by　hydrothermal　treatment　to　form　hybrid　nanoplatelets　that　were　then　codoped　with　nitrogen　and　boron　by　high-temperature　annealing.　This　hybrid　material　combined　the　advantages　of　both　components,　such　as　abundant　edges　and　doping　sites,　high　electrical　conductivity,　and　high　surface　area,　which　makes　the　resulting　materials　excellent　oxygen　reduction　electrocatalysts　with　activity　even　higher　than　that　of　commercial　Pt/C　in　alkaline　media.