Interferometric in-situ observation during nucleation and growth of WO3 nanocrystals in vapor phase
文献类型：期刊论文
| 作者 | Kimura, Y ; Miura, H ; Tsukamoto, K ; Li, CR ; Maki, T |
| 刊名 | JOURNAL OF CRYSTAL GROWTH
 |
| 出版日期 | 2011 |
| 卷号 | 316期号:1页码:196 |
| 关键词 | MOLECULAR-DYNAMICS SIMULATION HOMOGENEOUS NUCLEATION CONCENTRATION FIELD PARTICLES GAS CONDENSATION CRYSTAL GRAINS |
| ISSN号 | 0022-0248 |
| 通讯作者 | Kimura, Y: Tohoku Univ, Grad Sch Sci, Dept Earth & Planetary Mat Sci, Sendai, Miyagi 9808578, Japan. |
| 中文摘要 | To investigate the homogeneous nucleation and growth process of nanoparticles in vapor phase, interferometric observation was attempted for the first time to the gas evaporation method, which has been a commonly accepted physical production method of nanoparticles. Tungsten oxide was evaporated by electrical heating of a tungsten wire in a mixture gas of Ar and O-2. WO3 nanoparticles were formed via homogeneous nucleation and growth during a gas cools following a thermal convection produced by the evaporation source. The degree of supersaturation for nucleation was extremely high, 6.6 x 10(6), which was determined from the interferogram. Surface free energy of WO3 at 1100 K was calculated based on the classical nucleation theory and was 1.38 x 10(3) erg cm(-2), which is within the reported values. A part of the difference between actual formation rate of produced nanoparticles, which were determined based on a transmission electron microscope, and calculated values based on the classical nucleation theory were well explained if we adopt the idea of coalescence growth. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | KAKENHI [22684024]; JSPS [22244066]; Tohoku University; Tohoku University, Japan |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/40153]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kimura, Y,Miura, H,Tsukamoto, K,et al. Interferometric in-situ observation during nucleation and growth of WO3 nanocrystals in vapor phase[J]. JOURNAL OF CRYSTAL GROWTH,2011,316(1):196. |
| APA | Kimura, Y,Miura, H,Tsukamoto, K,Li, CR,&Maki, T.(2011).Interferometric in-situ observation during nucleation and growth of WO3 nanocrystals in vapor phase.JOURNAL OF CRYSTAL GROWTH,316(1),196. |
| MLA | Kimura, Y,et al."Interferometric in-situ observation during nucleation and growth of WO3 nanocrystals in vapor phase".JOURNAL OF CRYSTAL GROWTH 316.1(2011):196. |
入库方式： OAI收割
来源：物理研究所
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