Facile Synthesis of Fe2O3 Nano-Dots@Nitrogen-Doped Graphene for Supercapacitor Electrode with Ultralong Cycle Life in KOH Electrolyte | |
Liu L(刘莉)1,3; Lang JW(郎俊伟)1; Zhang P(张鹏)1,3; Hu B(胡斌)2; Yan XB(阎兴斌)1 | |
刊名 | ACS Applied Materials and Interfaces |
2016 | |
卷号 | 8期号:14页码:9335-9344 |
关键词 | iron oxide nanodots nitrogen-doped graphene supercapacitor cycling stability rate capability |
ISSN号 | 1944-8244 |
通讯作者 | 阎兴斌 |
英文摘要 | Fe2O3 nanodots supported on nitrogen-doped graphene sheets (denoted as Fe2O3 NDs@NG) with different loading masses are prepared through a facile one-pot solvothermal method. The resulting Fe2O3 NDs@NG composites exhibit outstanding electrochemical properties in aqueous KOH electrolyte. Among them, with the optimal loading mass of Fe2O3 NDs, the corresponding Fe2O3 NDs@NG-0.75 sample is able to deliver a high specific capacitance of 274 F g–1 at 1 A g–1 and the capacitance is still as high as 140 F g–1 even at a ultrahigh current density of 50 A g–1, indicating excellent rate capability. More remarkably, it displays superior capacitance retention after 100 000 cycles (about 75.3% at 5 A g–1), providing the best reported long-term cycling stability for iron oxides in alkaline electrolytes to date. Such excellent electrochemical performance is attributed to the right combination of highly dispersed Fe2O3 NDs and appropriately nitrogen-doped graphene sheets, which enable the Fe2O3 NDs@NG-0.75 to offer plenty of accessible redox active sites, facilitate the electron transfer and electrolyte diffusion, as well as effectively alleviate the volume change of Fe2O3 NDs during the charge–discharge process. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | the National Nature Science Foundation of China (Grants 21573265;51501208) |
语种 | 英语 |
WOS记录号 | WOS:000374274900058 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/20092] |
专题 | 兰州化学物理研究所_清洁能源化学与材料实验室 兰州化学物理研究所_OSSO国家重点实验室 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, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Liu L,Lang JW,Zhang P,et al. Facile Synthesis of Fe2O3 Nano-Dots@Nitrogen-Doped Graphene for Supercapacitor Electrode with Ultralong Cycle Life in KOH Electrolyte[J]. ACS Applied Materials and Interfaces,2016,8(14):9335-9344. |
APA | Liu L,Lang JW,Zhang P,Hu B,&Yan XB.(2016).Facile Synthesis of Fe2O3 Nano-Dots@Nitrogen-Doped Graphene for Supercapacitor Electrode with Ultralong Cycle Life in KOH Electrolyte.ACS Applied Materials and Interfaces,8(14),9335-9344. |
MLA | Liu L,et al."Facile Synthesis of Fe2O3 Nano-Dots@Nitrogen-Doped Graphene for Supercapacitor Electrode with Ultralong Cycle Life in KOH Electrolyte".ACS Applied Materials and Interfaces 8.14(2016):9335-9344. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论