| Size effect of the surface energy density of nanoparticles | |
Yao Y (姚寅); Wei YC (魏遥驰); Chen SH(陈少华)
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| Source Publication | Surface Science
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| 2015-01-29 | |
| Volume | 636Pages:19-24 |
| ISSN | 0039-6028 |
| Abstract |
The surface energy density of nanoparticles exhibits an obviously size-dependent behavior. However, how the surface energy density changes with the diameter of nanoparticles is still ambiguous. Based on a recently developed continuum theory considering the size effect in nanomaterials, theoretical analysis is carried out for various fcc metallic nanoparticles. Surface lattice contractions of nanoparticles are predicted and compared with the existing experimental data. As a result, the surface energy density decreases with the increase of nanoparticle diameter. Such a variation trend of surface energy density is contrary to the prediction of existing theoretical models but well consistent with the previously atomistic simulations and density functional calculations. The results in this paper provide a further understanding of the surface effect of nanoparticles, which should be helpful for the design of nanoscale devices or nanomaterials related to nanoparticles, such as NEMs and nanoparticle-reinforced composites. |
| Keyword | Metallic Nanoparticles Size Effect Lattice Contraction Surface Energy Density |
| Subject Area | 新型材料的力学问题 |
| DOI | 10.1016/j.susc.2015.01.016 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000351798100004 |
| Department | LNM仿生材料与固体的微尺度力学 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/49540 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Chen SH(陈少华) |
| Recommended Citation GB/T 7714 | Yao Y ,Wei YC ,Chen SH. Size effect of the surface energy density of nanoparticles[J]. Surface Science,2015,636:19-24. |
| APA | Yao Y ,Wei YC ,&Chen SH.(2015).Size effect of the surface energy density of nanoparticles.Surface Science,636,19-24. |
| MLA | Yao Y ,et al."Size effect of the surface energy density of nanoparticles".Surface Science 636(2015):19-24. |
| Files in This Item: | Download All | |||||
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| Size effect of the s（1131KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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