| A general approach for fabrication of nitrogen-doped graphene sheets and its application in supercapacitors | |
Wang, Dewei ; Min, Yonggang; Yu, Youhai; Peng, Bo
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| 作者部门 | 先进光电与生物材料研发中心 |
| 2014-03-01 | |
| 发表期刊 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
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| ISSN | 0021-9797 |
| 卷号 | 417期号:0页码:270-277 |
| 产权排序 | 1 |
| 摘要 | In this paper, a general and efficient strategy has been developed to produce nitrogen-doped graphene sheets (NGs) based on hard and soft acids and bases (HSAB) theory. Under hydrothermal conditions, any salt with amphiprotic character have a strong tendency to hydrolysis, it is possible to provide reducing agent and nitrogen source simultaneously. It is worth noting that, NGs can be prepared under hydrothermal conditions by using some common ammonium salts with hard acid-soft base pairs as nitrogen-doping agents. The morphology, structure and composition of the as-prepared NGs were studied in detail. The results demonstrated that large amount of nitrogen was incorporated into the nanocarbon frameworks at the same time as the graphene oxide (GO) sheets were reduced. The electrochemical behavior of the synthesized NGs as supercapacitor electrodes was evaluated in a symmetric two-electrode cell configuration with 1 M H2SO4 as the electrolytes. It was found that the nitrogen groups making the as-prepared NGs exhibited remarkably enhanced electrochemical performance when used as electrode materials in supercapacitors. The supercapacitor based on the NGs exhibited a high specific capacitance of 242 F g(-1), at a current density of 1 A g(-1), and remains a relatively high capacitance even at a high current density. This work will put forward to understand and optimize heteroatom-doped graphene in energy storage systems. (C) 2013 Elsevier Inc. All rights reserved. |
| 文章类型 | Article |
| 关键词 | Doped Graphene Graphene Oxide Electrochemical Performance Supercapacitors |
| 学科领域 | 数理科学和化学 |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.jcis.2013.11.021 |
| 收录类别 | SCI ; EI |
| 关键词[WOS] | HIGH-PERFORMANCE ; ELECTROCHEMICAL CAPACITORS ; MESOPOROUS CARBON ; ENERGY-CONVERSION ; OXIDE ; STORAGE ; BORON ; ULTRACAPACITORS ; NANOMATERIALS ; NANOFIBERS |
| 语种 | 英语 |
| WOS研究方向 | Chemistry |
| 项目资助者 | 所长基金Y255F81ZZ0 ; 西部之光博士项目Y329181213 |
| WOS类目 | Chemistry, Physical |
| WOS记录号 | WOS:000330090600035 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/20991 |
| 专题 | 光子功能材料与器件研究室 |
| 作者单位 | Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Inst Adv Mat, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Dewei,Min, Yonggang,Yu, Youhai,et al. A general approach for fabrication of nitrogen-doped graphene sheets and its application in supercapacitors[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2014,417(0):270-277. |
| APA | Wang, Dewei,Min, Yonggang,Yu, Youhai,&Peng, Bo.(2014).A general approach for fabrication of nitrogen-doped graphene sheets and its application in supercapacitors.JOURNAL OF COLLOID AND INTERFACE SCIENCE,417(0),270-277. |
| MLA | Wang, Dewei,et al."A general approach for fabrication of nitrogen-doped graphene sheets and its application in supercapacitors".JOURNAL OF COLLOID AND INTERFACE SCIENCE 417.0(2014):270-277. |
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