Ionic liquid-based stable nanofluids containing gold nanoparticles
文献类型：期刊论文
| 作者 | Wang BG(王宝刚) ; Wang XB(王晓波); Lou WJ(娄文静); Lou WJ(娄文静)
|
| 刊名 | Journal of Colloid and Interface Science
 |
| 出版日期 | 2011 |
| 卷号 | 362页码:5-14 |
| 关键词 | Ionic liquids Nanofluids Gold nanoparticles Thermal conductivity |
| ISSN号 | 0021-9797 |
| 通讯作者 | 娄文静 ; 郝京诚 |
| 中文摘要 | A one-phase and/or two-phase method were used to prepare the stable ionic liquid-based nanofluids containing same volume fraction but different sizes or surface states of gold nanoparticles (Au NPs) and their thermal conductivities were investigated in more detail. Five significant experiment parame- ters, i.e. temperature, dispersion condition, particle size and surface state, and viscosity of base liquid, were evaluated to supply experimental explanations for heat transport mechanisms. The conspicuously temperature-dependent and greatly enhanced thermal conductivity under high temperatures verify that Brownian motion should be one key effect factor in the heat transport processes of ionic liquid-based gold nanofluids. While the positive influences of proper aggregation and the optimized particle size on their thermal conductivity enhancements under some specific conditions demonstrate that clustering may be another critical effect factor in heat transport processes. Moreover, the remarkable difference of the thermal conductivity enhancements of the nanofluids containing Au NPs with different surface states could be attributed to the surface state which has a strong correlation with not only Brownian motion but also clustering. Whilst the close relationship between their thermal conductivity enhance- ments and the viscosity of base liquid further indicate Brownian motion must occupy the leading position among various influencing factors. Finally, a promisingly synergistic effect of Brownian motion and clus- tering based on experimental clues and theoretical analyses was first proposed, justifying different mech- anisms are sure related. The results may shed lights on comprehensive understanding of heat transport mechanisms in nanofluids. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | This work was supported by the NFSC (Grant NO.20803087 & 21033005);the Major State Basic Research Development Program of China (973 Program;Grant NO.2007CB607606). |
| 语种 | 英语 |
| 公开日期 | 2012-09-24 |
| 源URL | [http://210.77.64.217/handle/362003/737]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 通讯作者 | Lou WJ(娄文静); Lou WJ(娄文静) |
| 推荐引用方式 GB/T 7714 | Wang BG,Wang XB,Lou WJ,et al. Ionic liquid-based stable nanofluids containing gold nanoparticles[J]. Journal of Colloid and Interface Science,2011,362:5-14. |
| APA | 王宝刚,王晓波,娄文静,&娄文静.(2011).Ionic liquid-based stable nanofluids containing gold nanoparticles.Journal of Colloid and Interface Science,362,5-14. |
| MLA | 王宝刚,et al."Ionic liquid-based stable nanofluids containing gold nanoparticles".Journal of Colloid and Interface Science 362(2011):5-14. |
入库方式： OAI收割
来源：兰州化学物理研究所
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