| 镍掺杂花状纳米碳片的制备及其在超级电容器中的应用(英文) | |
| Synthesis of Ni-doped Flower-Like Carbon Nanosheet Aggregations for Supercapacitors | |
| 摘要: 本文通过溶剂热法“一锅”制备了镍掺杂的花状纳米碳片(Ni/FCNAs)。借助X射线衍射仪(XRD)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对该复合材料的表面形貌和结构进行了分析。循环伏安和恒流充/放电测试结果表明，Ni/FCNAs具有较大的比电容值且电化学稳定性良好。在电流密度为0.1 A·g-1时，Ni/FCNAs电极的比电容可达176 F·g-1。本文同时也提出了Ni/FCNAs可能的形成机理。 | |
| 关键词: 镍掺杂 纳米碳片 溶剂热 超级电容器 | |
| 基金项目: | |
| Abstract: Ni-doped flower-like carbon nanosheet aggregations (Ni/FCNAs) were synthesized via a one-pot solvothermal method followed by a subsequent calcination process at 900 ℃ in nitrogen atmosphere. The surface morphologies and structures of composites were examined by scanning electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffraction (XRD). Cyclic voltammetry and galvanostatic charge/discharge experiments were adopted to investigate their electrochemical behaviors. The results show that the doped nickel particles could enhance both specific capacitance and electrochemical stability. The Ni/FCNAs show large specific capacitance up to 176 F·g-1 with the current density of 0.1 A·g-1. The possible formation mechanism of Ni/FCNAs has also been proposed on the basis of experimental results. | |
| Keywords: Ni-doped carbon nanosheet solvothermal supercapacitors | |
| 摘要点击次数: 1516 | |
| 全文下载次数: 2188 | |
| 易观贵,肖 勇,谢春林,莫珊珊,贺文启,赵 率,刘应亮,袁定胜,黄浪欢,谭绍早.镍掺杂花状纳米碳片的制备及其在超级电容器中的应用(英文)[J].无机化学学报,2011,27(4):764-770. | |
| 查看全文 查看/发表评论 下载PDF阅读器 | |
| Support information: | |
|
| |
|
| |
|
| |