Facile synthesis of nitrogen-doped carbon nanosheets as metal-free catalyst with excellent oxygen reduction performance in alkaline and acidic media | |
Department | 先进润滑与防护材料研究发展中心 |
Zhao, Qiuping1,2,3; Ma, Qin2; Pan FP(潘富平)4; Wang, Zhengmin3; Yang, Baoping3; Zhang, Jianqiang3; Zhang JY(张俊彦)4; Zhang JY(张俊彦) | |
The second department | 固体润滑国家重点实验室 |
2016 | |
Source Publication | Journal of Solid State Electrochemistry |
ISSN | 1432-8488 |
Volume | 20Issue:5Pages:1469-1479 |
Abstract | In this work, a low-cost, high-performance, and environmentally friendly metal-free electrocatalyst based on N-doped carbon nanosheets (NCNs) was fabricated via the one-step pyrolysis of cheap corn starch and urea for the oxygen reduction reaction (ORR) in alkaline and acidic media. The results indicate that the nitrogen could be simply embedded into the carbon nanosheets by pyrolysis process. The effects of annealing temperature and raw material on NCN’s structure and electrocatalytic properties were investigated to optimize the preparation process. The results show that the total nitrogen content decreases while Brunauer–Emmett–Teller (BET) surface area, crystallization degree, graphitization degree, and electrical conductivity increase with the increase of pyrolysis temperature from 800 to 1000 °C. The measurements on the ORR activities by rotating disk electrode (RDE) in alkaline media (0.1 M KOH) and acidic media (0.5 M H2SO4) were investigated, and a nearly four-electron reaction pathway was observed. In comparison to commercial 20 % Pt/C catalyst (Pt/C), NCN exhibited excellent ORR electrocatalytic activity, methanol tolerant ability, and stability, making them promising metal-free alternative to Pt-based cathode catalysts in fuel cells. In addition, the findings obtained from this study may provide a scalable fabrication method for preparation of such low cost and high-efficiency metal-free oxygen reduction electrocatalyst derived from cheap biomass-based molecules. |
Keyword | Nitrogen-doped Carbon Nanosheets Oxygen Reduction Reaction Metal-free Catalyst Pyrolysis Synthesis |
Subject Area | 材料科学与物理化学 |
DOI | 10.1007/s10008-016-3157-z |
Funding Organization | the National Natural Science Foundation of China (Grant No. 21364004);Gansu Province University Fundamental Research Funds (Grant No. HG20140915);the University Scientific Research Project of Gansu Province Foundation (Grant No. 2014A-034) |
Indexed By | SCI |
If | 2.316 |
Language | 英语 |
Funding Project | 纳米润滑研究组 |
compositor | 第四作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/20069 |
Collection | 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhang JY(张俊彦) |
Affiliation | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Coll Materials Sci & Engn, Lanzhou 730050, Peoples R China 3.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China 4.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730050, Peoples R China |
Recommended Citation GB/T 7714 | Zhao, Qiuping,Ma, Qin,Pan FP,et al. Facile synthesis of nitrogen-doped carbon nanosheets as metal-free catalyst with excellent oxygen reduction performance in alkaline and acidic media[J]. Journal of Solid State Electrochemistry,2016,20(5):1469-1479. |
APA | Zhao, Qiuping.,Ma, Qin.,Pan FP.,Wang, Zhengmin.,Yang, Baoping.,...&张俊彦.(2016).Facile synthesis of nitrogen-doped carbon nanosheets as metal-free catalyst with excellent oxygen reduction performance in alkaline and acidic media.Journal of Solid State Electrochemistry,20(5),1469-1479. |
MLA | Zhao, Qiuping,et al."Facile synthesis of nitrogen-doped carbon nanosheets as metal-free catalyst with excellent oxygen reduction performance in alkaline and acidic media".Journal of Solid State Electrochemistry 20.5(2016):1469-1479. |
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