Rapid Synthesis of Phase Change Materials by One-step Solid-state Chemical Reaction at Low Heating Temperature

摘要：

The synthesis of SiO2 coated lauric acid (LA) nanoparticles via one-step, low heating temperature solid-state chemical reaction is reported. Analytical results of Infrared spectroscopy and X-ray diffraction prove that the lauric acid (LA) was coated with a layer of SiO2. Morphology of scanning electron microscopy suggests that the sample is comprised of sphere-like nanoparticals with average diameter about 200 nm. The as-prepared sample has been studied with differential scanning calorimetry (DSC). The transformation temperatures is 42.7℃and the fusion enthalpy are 121.03 J/g. The result shows that the sample possesses reasonable thermal property as a phase change material for latent heat energy storage application.

关键词： solid-state reaction fatty acid nanomaterials phase transition materials composite

作者: 柴卉 曾令可 王慧 刘平安 程小苏 税安泽

作者单位: 华南理工大学材料科学与工程学院,广州 510640

会议类型: 国际会议

会议名称: 第六届中国国际纳米科技研讨会

会议地点: 成都

会议语种:英文

在线出版日期: 2007-11-19（万方平台首次上网日期，不代表论文的发表时间）