氮掺杂碳纳米笼作为一种高效的氧还原催化剂
Nitrogen-doped carbon nanocages (NCNCs) were synthesized by in situ MgO template method usingpyridinecursors.Their specific surface areas and nitrogen contents could be regulated in the range of225～1393and 4.5～12.0 at％,respectively. The NCNCs didn”t contain any metal impurities with oxygenreduction reaction (ORR) activity,but demonstrated an outstanding electrocatalytic activity with electron transfernumber of 3.27 and long-term operation stability superior to the commercial Pt/C catalyst in alkaline medium.Theconvenient synthesis,excellent ORR performance,as well as the impurity-free characteristics of the NCNCsindicates their great application potential in fuel cells and the significance in clarifying the origin of the ORRactivity for the doped carbon materials.
氧还原催化剂 氮掺杂碳纳米笼 成分分析 性能评价
陈盛 毕及玉 赵宇
南京大学
国内会议
济南
中文
131-131
2012-10-01（万方平台首次上网日期，不代表论文的发表时间）