期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 10, 页码 3417-3423出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta14550f
关键词
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资金
- A*STAR's Science and Engineering Research Council (SERC)
- Ministry of National Development (MND)
- Institute of Materials Research and Engineering, Singapore
Copper nanostructures with a high yield are synthesized by a controlled disproportionation of CuCl in oleylamine reaction medium without the involvement of strong reducing agents adopted in conventional approaches. The highest copper yield (50%), a maximum theoretical value, is obtained by optimizing both the initial amount of CuCl added to the reaction medium and the reaction temperature. A potential use of the copper nanostructures in greatly enhancing thermal conductivity of a hydrated CaCl2 center dot 6H(2)O salt phase change material (PCM) is further demonstrated. A high thermal conductivity enhancement of the PCM (>50%) is achieved by doping a small amount (<0.2 wt%) of the copper nanostructures. The great enhancement with the use of a very small amount of the copper nanostructures makes the doping cost-effective for practical thermal energy storage applications.
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