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.
Adv Mater. 2013 Nov 13;25(42):6138-45. doi: 10.1002/adma.201302753. Epub 2013 Aug 23.
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.
为了替代昂贵的基于铂（Pt）的阴极氧还原反应（ORR）电催化剂，通过在硫（S8）存在下简单地球磨原始石墨，合成了边缘选择性硫掺杂石墨烯纳米片（SGnP）作为高效的无金属电催化剂。与原始石墨和商业 Pt/C 电催化剂相比，所得的 SGnP 对 ORR 表现出显著的电催化活性，对甲醇交叉/CO 中毒效应的耐受性更好，稳定性更高。边缘选择性硫掺杂石墨烯纳米片作为高效无金属电催化剂用于氧还原反应：电子自旋效应。
