Ultra-small, size-sontrolled Ni(OH)2 nanoparticles: elucidating the relationship between the particle size and their electrochemical performance for advanced energy storage devices | |
Wang RT(王儒涛); Lang JW(郎俊伟); Liu YH(刘永环); Lin ZY(林宗源); Yan XB(阎兴斌) | |
刊名 | NPG Asia Materials |
2015 | |
卷号 | 7页码:e183(1-7) |
ISSN号 | 1884-4049 |
通讯作者 | 阎兴斌 |
英文摘要 | Nanosizing is the fashionable method to obtain a desirable electrode material for energy storage applications, and thus, a question arises: do smaller electrode materials exhibit better electrochemical performance? In this context, theoretical analyses on the particle size, band gap and conductivity of nano-electrode materials were performed; it was determined that a critical size exist between particle size and electrochemical performance. To verify this determination, for the first time, a scalable formation and disassociation of nickel-citrate complex approach was performed to synthesize ultra-small Ni(OH)2 nanoparticles with different average sizes (3.3, 3.7, 4.4, 6.0, 6.3, 7.9, 9.4, 10.0 and 12.2 nm). The best electrochemical performance was observed with a specific capacity of 406 C g−1, an excellent rate capability was achieved at a critical size of 7.9 nm and a rapid decrease in the specific capacity was observed when the particle size was <7.9 nm. This result is because of the quantum confinement effect, which decreased the electrical conductivity and the sluggish charge and proton transfer. The results presented here provide a new insight into the nanosize effect on the electrochemical performance to help design advanced energy storage devices. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | the National Defense Basic Research Program of China;the National Nature Science Foundations of China (21203223) |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/19466] |
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_固体润滑国家重点实验室 |
作者单位 | Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China |
推荐引用方式 GB/T 7714 | Wang RT,Lang JW,Liu YH,et al. Ultra-small, size-sontrolled Ni(OH)2 nanoparticles: elucidating the relationship between the particle size and their electrochemical performance for advanced energy storage devices[J]. NPG Asia Materials,2015,7:e183(1-7). |
APA | Wang RT,Lang JW,Liu YH,Lin ZY,&Yan XB.(2015).Ultra-small, size-sontrolled Ni(OH)2 nanoparticles: elucidating the relationship between the particle size and their electrochemical performance for advanced energy storage devices.NPG Asia Materials,7,e183(1-7). |
MLA | Wang RT,et al."Ultra-small, size-sontrolled Ni(OH)2 nanoparticles: elucidating the relationship between the particle size and their electrochemical performance for advanced energy storage devices".NPG Asia Materials 7(2015):e183(1-7). |
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