Nitrogen-doped porous carbon nanosheets made from biomass as highly active electrocatalyst for oxygen reduction reaction | |
Pan FP(潘富平)1,2; Cao ZY(曹忠跃)1; Zhao QP(赵秋萍)1; Liang HY(梁红玉)1; Zhang JY(张俊彦)1 | |
刊名 | Journal of Power Sources |
2014 | |
卷号 | 272页码:8-15 |
关键词 | Porous carbon Oxygen reduction reaction Electrocatalysis Biomass Fuel cells |
ISSN号 | 0378-7753 |
通讯作者 | 张俊彦 |
英文摘要 | The successful commercialization of fuel cells requires the efficient electrocatalyst to make the oxygen reduction reaction (ORR) fast because of the sluggish nature of ORR and the high cost of the platinum catalysts. In this work, we report the excellent performance of metal-free nitrogen-doped porous carbon nanosheets (NPCN) with hierarchical porous structure and a high surface area of 1436.02 m2 g-1 for catalyzing ORR. The active NPCN is synthesized via facile high-temperature carbonization of natural ginkgo leaves followed by purification and ammonia post-treatment without using additional supporting templates and activation processes. In O2-saturated 0.1 M KOH solution, the resultant NPCN exhibits a high kinetic-limiting current density of 13.57 mA cm-2 at -0.25 V (vs. Ag/AgCl) approaching that of the commercial Pt/C catalyst (14 mA cm-2) and long-term electrochemical stability. Notably, the NPCN shows a slightly negative ORR half-wave potential in comparison with Pt/C (DE1/2 = 19 mV). The excellent electrocatalytic properties of NPCN originate from the combined effect of optimal nitrogen doping, high surface area, and porous architecture, which induce the high-density distribution of highly active and stable catalytic sites. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | the National Key Basic Research and Development (973) Program of China (Grant No. 2013CB632300);the National Natural Science Foundation of China (Grant Nos. 51275508;51205383) |
语种 | 英语 |
WOS记录号 | WOS:000344208700002 |
公开日期 | 2014-10-20 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/6575] |
专题 | 兰州化学物理研究所_先进润滑与防护材料研究发展中心 兰州化学物理研究所_固体润滑国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Pan FP,Cao ZY,Zhao QP,et al. Nitrogen-doped porous carbon nanosheets made from biomass as highly active electrocatalyst for oxygen reduction reaction[J]. Journal of Power Sources,2014,272:8-15. |
APA | Pan FP,Cao ZY,Zhao QP,Liang HY,&Zhang JY.(2014).Nitrogen-doped porous carbon nanosheets made from biomass as highly active electrocatalyst for oxygen reduction reaction.Journal of Power Sources,272,8-15. |
MLA | Pan FP,et al."Nitrogen-doped porous carbon nanosheets made from biomass as highly active electrocatalyst for oxygen reduction reaction".Journal of Power Sources 272(2014):8-15. |
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