The anti-supercooling effect of surface-modified nano-scaled SiO(2) in hydrated salts phase transition system
文献类型：会议论文
| 作者 | Xiaolin Wu; Yihai Wang; Rong Sun; Maobai Lai; Ruxu Du; Zhijun Zhang |
| 出版日期 | 2009 |
| 会议名称 | 8TH CHINA INTERNATIONAL NANOSCIENCE AND TECHNOLOGY SYMPOSIUM (CINSTS09) |
| 会议地点 | Shenzhen |
| 英文摘要 | Phase change characteristics of hydrate salt were analyzed for a system consisting of three types of SiO(2) nano-particles doped phase change materials (PCMs). By using the three nano-particles of Aerosol SiO(2), RNS-A SiO(2) and Liquid phase SiO(2), the surface effect of the interaction between nano-particles and hydrate salts was investigated. The time-temperature curves and Differential Scanning Calorimeter (DSC) testing results showed that Aerosol SiO(2) had the most effective and stable performance as the nucleators for hydrate salts. The analysis of FT-IR showed that there were strong characteristic hydroxyl bonds on the surface of Aerosol SiO(2). And the designed hydroxyl controllable silica gel system could prove theeffect of hydroxyl bonds on suppressing supercooling of hydrate salts. It was concluded that supercooling of hydrate salts could be easily suppressed by the nano-additives with high specific surface area and strong polar hydroxyls in the surface. The ion-exchange attraction between hydroxyls and hydrate salts might mainly result in the supersaturation of hydrate salts in the interface of nano-particles. And then the supercooling of hydrate saltscould be suppressed. The theoretical analysing model based on interionic attraction is a novel approach for investigating the nucleation of hydrate salts. And this result might provide a potential low-cost approach for the applications of nano-additivs in building energy storage and coolant. |
| 收录类别 | ISTP |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/2463]  |
| 专题 | 深圳先进技术研究院_集成所 |
| 作者单位 | 2009 |
| 推荐引用方式 GB/T 7714 | Xiaolin Wu,Yihai Wang,Rong Sun,et al. The anti-supercooling effect of surface-modified nano-scaled SiO(2) in hydrated salts phase transition system[C]. 见:8TH CHINA INTERNATIONAL NANOSCIENCE AND TECHNOLOGY SYMPOSIUM (CINSTS09). Shenzhen. |
入库方式： OAI收割
来源：深圳先进技术研究院
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