| Swelling-induced synthesis of nitrogen-doped graphene for oxygen reduction reaction | |
| Department | 先进润滑与防护材料研究发展中心 |
Pan FP(潘富平)1,2 ; Guo, Shu (郭术)3; Zhang JY(张俊彦)1
| |
| The second department | 固体润滑国家重点实验室 |
| 2015 | |
| Source Publication | Electrochimica Acta
 |
| ISSN | 0013-4686 |
| Volume | 180Pages:29-36 |
| Abstract | The development of graphene-based electrocatalyst for the oxygen reduction reaction (ORR) is of great significance. Herein, we report a swelling-induced approach based on the thermal condensation of dicyandiamide (DCDA) to convert the porous sucrose-derived sphere (PSS) into nitrogen-doped graphene (NG) via facile one-step pyrolysis. The polycondensation of DCDA creates the volume expansion that results in the rupture of PSS and the formation of NG after high-temperature nitrogen doping and carbonization processes. This method allows for the facile optimization of the nitrogen doping level and graphitization degree by adjusting the annealing temperature. In alkaline media, the NG exhibits an excellent electrocatalytic ORR activity comparable to commercial Pt/C catalyst in terms of four-electron transfer pathway, low overpotential and high kinetic-limiting current density of 15.29 mA cm−2 at 0.665 V (vs. RHE), together with its better durability. The high ORR performance of NG is attributed to the synergetic effects between optimal nitrogen doping (moderate total nitrogne content with high proportion of graphitic nitrogen) and enhanced electronic conductivity, which offers the highly active and dense centers and facilitates the electron transfer for ORR process, respectively. This finding is useful for producing novel nanocarbon and propelling the application of clean energy systems. |
| Keyword | Oxygen Reduction Reaction Fuel Cells Swelling Graphene Nitrogen Doping |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.electacta.2015.08.079 |
| Funding Organization | the National Key Basic Research and Development (973) Program of China (Grant No. 2013CB632300);the National Natural Science Foundation of China (Grant No. 51275508;51205383). |
| Indexed By | SCI |
| If | 4.803 |
| Language | 英语 |
| Funding Project | 纳米润滑研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/19060 |
| 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） |
| Affiliation | 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 3.Hainan Normal Univ, Sch Chem & Chem Engn, Haikou 571158, Peoples R China |
| Recommended Citation GB/T 7714 | Pan FP,Guo, Shu ,Zhang JY. Swelling-induced synthesis of nitrogen-doped graphene for oxygen reduction reaction[J]. Electrochimica Acta,2015,180:29-36. |
| APA | Pan FP,Guo, Shu ,&Zhang JY.(2015).Swelling-induced synthesis of nitrogen-doped graphene for oxygen reduction reaction.Electrochimica Acta,180,29-36. |
| MLA | Pan FP,et al."Swelling-induced synthesis of nitrogen-doped graphene for oxygen reduction reaction".Electrochimica Acta 180(2015):29-36. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S001346861530（2302KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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