Morphology tuning of noble metal nanoparticles by diffusion-reaction control
文献类型：期刊论文
| 作者 | Ye, Feng1; Liu, Hui1,2; Huang, Wenlai3; Yang, Jun1 |
| 刊名 | CRYSTENGCOMM
 |
| 出版日期 | 2014 |
| 卷号 | 16期号:37页码:8910-8916 |
| 关键词 | OXYGEN REDUCTION SILVER NANOSPHERES CRYSTAL-GROWTH SHAPE CONTROL NANOCUBES GOLD NANORODS COMPROMISE NANOWIRES NANODENDRITES |
| ISSN号 | 1466-8033 |
| 其他题名 | Crystengcomm |
| 中文摘要 | Controlling the morphology of noble metal nanoparticles can be an effective way to produce nanomaterials with favourable properties. Herein, we report our study on the effects of diffusion rate and reaction kinetics on the morphology of a number of noble metal (Au, Ag, Pd, and Pt) nanoparticles. A glass reactor based on electrochemical reduction or photo-reduction has been designed to achieve control of diffusion and chemical reduction of the different noble metal precursors. The results show that the noble metal nanoparticles with flower-like, core-shell, or wheel-like morphologies could be obtained at a relatively high diffusion rate due to the presence of additional growth of metal precursors on the preformed metal nuclei, while at relatively low diffusion, the as-prepared noble metal nanoparticles are small and quasi-spherical due to the relatively fast reduction of metal precursors. The experimental observations are also confirmed qualitatively by kinetic Monte Carlo (kMC) simulations. Since diffusion and reaction kinetics are universal and key factors in the synthesis of nanomaterials, the findings in this work might provide an effective way to manipulate the morphology of nanomaterials for a given application. |
| 英文摘要 | Controlling the morphology of noble metal nanoparticles can be an effective way to produce nanomaterials with favourable properties. Herein, we report our study on the effects of diffusion rate and reaction kinetics on the morphology of a number of noble metal (Au, Ag, Pd, and Pt) nanoparticles. A glass reactor based on electrochemical reduction or photo-reduction has been designed to achieve control of diffusion and chemical reduction of the different noble metal precursors. The results show that the noble metal nanoparticles with flower-like, core-shell, or wheel-like morphologies could be obtained at a relatively high diffusion rate due to the presence of additional growth of metal precursors on the preformed metal nuclei, while at relatively low diffusion, the as-prepared noble metal nanoparticles are small and quasi-spherical due to the relatively fast reduction of metal precursors. The experimental observations are also confirmed qualitatively by kinetic Monte Carlo (kMC) simulations. Since diffusion and reaction kinetics are universal and key factors in the synthesis of nanomaterials, the findings in this work might provide an effective way to manipulate the morphology of nanomaterials for a given application. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary ; Crystallography |
| 研究领域[WOS] | Chemistry ; Crystallography |
| 关键词[WOS] | OXYGEN REDUCTION ; SILVER NANOSPHERES ; CRYSTAL-GROWTH ; SHAPE CONTROL ; NANOCUBES ; GOLD ; NANORODS ; COMPROMISE ; NANOWIRES ; NANODENDRITES |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000341359200036 |
| 公开日期 | 2014-11-02 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11664]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, EMMS Grp, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Feng,Liu, Hui,Huang, Wenlai,et al. Morphology tuning of noble metal nanoparticles by diffusion-reaction control[J]. CRYSTENGCOMM,2014,16(37):8910-8916. |
| APA | Ye, Feng,Liu, Hui,Huang, Wenlai,&Yang, Jun.(2014).Morphology tuning of noble metal nanoparticles by diffusion-reaction control.CRYSTENGCOMM,16(37),8910-8916. |
| MLA | Ye, Feng,et al."Morphology tuning of noble metal nanoparticles by diffusion-reaction control".CRYSTENGCOMM 16.37(2014):8910-8916. |
入库方式： OAI收割
来源：过程工程研究所
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