Hydrothermal synthesis of Ni@C core-shell composites with high capacitance
文献类型：期刊论文
| 作者 | Niu LY(牛棱渊)1,2; Li ZP(李章朋)1; Sun JF(孙金凤)1,2 ; Fan ZJ(范增杰)1,2; Xu Y(许烨)1,2; Gong PW(公培伟)1; Yang SR(杨生荣)1; Wang JQ(王金清)1
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| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2013 |
| 卷号 | 575页码:152-157 |
| 关键词 | Nickel nanoparticles Carbon coating Composite Supercapacitor |
| ISSN号 | 0925-8388 |
| 通讯作者 | 王金清 |
| 英文摘要 | Ni@C core–shell composites with different crystal structures were synthesized by chemical reduction of nickel (II) acetate tetrahydrate using ethylene glycol as reducing agent and sodium citrate as a carbon source, followed by annealing at different temperatures in the nitrogen atmosphere. X-ray diffraction analysis indicates that the crystal structure of Ni is dependent on the annealing temperatures. At 250 ℃, both face-centered cubic and hexagonal closed-packed (hcp) phases of Ni coexist in the Ni@C composites, whereas there is only hcp phase Ni observed as being annealed at 300 ℃. The synthesized Ni@C composites were applied as electrode materials for supercapacitors and exhibited superior electrochemical performances. Especially, the electrode annealed at 250 ℃ displays the highest specific capacitance of 530 F g_1 in 2 M KOH solution at a current density of 1 A g_1. In addition, the synthesized Ni@C composite electrodes also show excellent rate capability and cycle stability, presenting the promising potential as electrode material for supercapacitors. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (Grant Nos. 51205385;51075384);“Top Hundred Talents Program” of Chinese Academy of Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000321751000024 |
| 公开日期 | 2013-12-03 |
| 源URL | [http://210.77.64.217/handle/362003/4328]  |
| 专题 | 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, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu LY,Li ZP,Sun JF,et al. Hydrothermal synthesis of Ni@C core-shell composites with high capacitance[J]. Journal of Alloys and Compounds,2013,575:152-157. |
| APA | Niu LY.,Li ZP.,Sun JF.,Fan ZJ.,Xu Y.,...&Wang JQ.(2013).Hydrothermal synthesis of Ni@C core-shell composites with high capacitance.Journal of Alloys and Compounds,575,152-157. |
| MLA | Niu LY,et al."Hydrothermal synthesis of Ni@C core-shell composites with high capacitance".Journal of Alloys and Compounds 575(2013):152-157. |
入库方式： OAI收割
来源：兰州化学物理研究所
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