Surface Modification of Silver Nanoparticles in Phase Change Materials for Building Energy Application

Abstract:

In this report, we propose a direct silica-coating technique to enhance the stability of silver nanoparticles as a doping additive to enhance the thermal conductivity phase change materials (PCM). Our experimental results show that a thin layer of silica can protect silver nanoparticles and help retain its intrinsic metallic properties, when subjected to harsh corrosive environments found in PCM media. Furthermore, PCM materials can be effectively used to cool the ambient temperature of a building room by up to ~1.2 degree Celsius. Our preliminary results demonstrate a real opportunity in air-conditioning energy-savings for buildings using enhanced PCM.

• Periodical: Advanced Materials Research (Volumes 622-623)
• Pages: 889-892
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.622-623.889
• Online since: December 2012
• Authors: Shah Kwok Wei
• Keywords: Core-Shell Architecture, Nanoparticle, Phase Change Materials (PCM)

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