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A Layer-Structured Metal-Organic Framework-Derived Mesoporous Carbon for Efficient Oxygen Reduction Reaction
Hong-guang Song, Yan-jun Ding, Jia Yang, Hang-xun Xu
CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
Abstract:
Developing highly active and durable electrocatalysts for the oxygen reduction reaction (ORR) is crucial to large-scale commercialization of fuel cells and metal-air batteries. Here we report a facile approach for the synthesis of nitrogen and oxygen dual-doped mesoporous layer-structured carbon electrocatalyst embedded with graphitic carbon coated cobalt nanoparticles by direct pyrolysis of a layer-structured metal-organic framework. The electrocatalyst prepared at 800℃ exhibits comparable ORR performance to Pt/C catalysts but possesses superior stability to Pt/C catalysts. This synthetic approach provides new prospects in developing sustainable carbon-based electrocatalysts for electrochemical energy conversion devices.
Key words:  Electrocatalysis  Oxygen reduction reaction  Mesoporous carbon  Cobalt nanoparticles
FundProject:
基于片层结构钴卟啉金属有机骨架的高效氧还原反应电催化剂
宋宏光, 丁言军, 杨佳, 徐航勋
中国科学技术大学高分子科学与工程系, 中国科学院软物质化学重点实验室, 合肥 230026
摘要:
使用片层结构的金属有机骨架作为前驱物,通过高温煅烧制备出氮掺杂的介孔碳材料,同时在片层碳骨架上均匀分布着石墨化碳包裹的钴纳米粒子.电化学测试表明,800℃制备的样品具有与铂炭(Pt/C)催化剂相接近的氧还原反应催化活性,催化稳定性和甲醇耐受性良好,显著超越商品化Pt/C催化剂.
关键词:  电催化  氧还原反应  多孔碳材料  钴纳米粒子
DOI:10.1063/1674-0068/29/cjcp1605115
分类号: