title: Edge-selectively sulfurized graphene nanoplatelets as efficient metal-free electrocatalysts for oxygen reduction reaction: the electron spin effect.
abstract: To replace precious platinum (Pt)-based electrocatalysts for cathodic oxygen reduction reaction (ORR), edge-selectively sulfurized graphene nanoplatelets (SGnP) are synthesized as efficient metal-free electrocatalysts simply by ball-milling pristine graphite in the presence of sulfur (S8 ). The resultant SGnPs exhibit remarkable electrocatalytic activity toward ORR with better tolerance to methanol crossover/CO poisoning effects and longer-term stability than those of pristine graphite and commercial Pt/C electrocatalysts. Edge-Selectively Sulfurized Graphene Nanoplatelets as Efficient Metal-Free Electrocatalysts for Oxygen Reduction Reaction: The Electron Spin Effect.
authors.affiliation: Interdisciplinary School of Green, Energy/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon, Ulsan, 689-798, South Korea.
authors.forename: In-Yup
authors.initials: IY
authors.lastname: Jeon
authors.forename: Sheng
authors.initials: S
authors.lastname: Zhang
authors.forename: Lipeng
authors.initials: L
authors.lastname: Zhang
authors.forename: Hyun-Jung
authors.initials: HJ
authors.lastname: Choi
authors.forename: Jeong-Min
authors.initials: JM
authors.lastname: Seo
authors.forename: Zhenhai
authors.initials: Z
authors.lastname: Xia
authors.forename: Liming
authors.initials: L
authors.lastname: Dai
authors.forename: Jong-Beom
authors.initials: JB
authors.lastname: Baek
mesh_terms: D002384:Catalysis; D055664:Electrochemical Techniques; D004583:Electrons; D006108:Graphite / Q000737:chemistry*; D008670:Metals / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D011789:Quantum Theory; D013455:Sulfur / Q000737:chemistry*
chemical_list: D008670:Metals; D013455:Sulfur; D006108:Graphite; D010100:Oxygen
keywords: ball-milling; electrocatalysts; graphene nanoplatelets; oxygen reduction reaction; sulfurization