Alkylated phase change composites for thermal energy storage based on surface-modified silica aerogels

被引：115

作者：

Huang, Xinyu ^{[1
]}

Liu, Zhenpu ^{[1
]}

Xia, Wei ^{[1
]}

Zou, Ruqiang ^{[1
]}

Han, Ray P. S. ^{[1
]}

机构：

[1] Peking Univ, Dept Mat Sci & Engn, Coll Engn, Beijing 100871, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 05期

基金：

中国国家自然科学基金;

关键词：

CHANGE BEHAVIOR; LOW-DENSITY; CONDUCTIVITY; SYSTEM; HYDROPHOBICITY; TRANSPARENT; CAPACITY; PARAFFIN;

D O I：

10.1039/c4ta06735e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We alkylated silica aerogels to make them hydrophobic for effective impregnation and storage of a phase change material (PCM). As a result of this surface modification treatment, the aerogel scaffold exhibited an average increase of 20.9-34.7% in the PCM uptake with an improved thermal energy storage capacity and stability. For the light to thermal energy conversion experiments, we carbonized the treated aerogels and observed that they readily attained temperatures above the melting point of the PCM. Therefore, the carbonized PCM-impregnated scaffold possesses enhanced thermal energy storage and release property via a phase change response in the encapsulated PCM.

引用

页码：1935 / 1940

页数：6

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