Preparation and thermal properties of porous heterogeneous composite phase change materials based on molten salts/expanded graphite
Preparation and thermal properties of porous heterogeneous composite phase change materials based on molten salts/expanded graphite
复制标题
熔盐/膨胀石墨多孔异质复合相变材料的制备及热性能
DOI：
10.1016/j.solener.2014.05.019
复制
发表时间：
2014-09
期刊：
影响因子：
6.7
通讯作者：
Ge Wang
中科院分区：
文献类型：
--
作者：
Limin Zhong;Xiaowei Zhang;Yi Luan;Ge Wang
以膨胀石墨(EG)为原料，采用溶液浸渍法制备了三种多孔非均相复合相变材料。计算得到复合相变材料中二元熔盐含量在77.8%~81.5%之间，高包覆率在72.8%~78.8%之间。经EG浸渍后，二元熔盐的导热系数提高了4.9~6.9倍。扫描电子显微镜照片表明，与其它浸渍或压缩法制备的盐基/EG复合材料相比，制备的复合材料更加均匀。多孔非均相复合相变材料的相变性能表现出很好的热稳定性，100次循环后仍保持不变。
Three kinds of porous heterogeneous composite phase change materials were synthesized from expanded graphite (EG) and binary molten salts (LiNO3–KCl, LiNO3–NaNO3and LiNO3–NaCl) through solution impregnation method. Binary molten salt content in the composite phase change materials was calculated to be between 77.8% and 81.5% and high encapsulation efficiency was calculated to be between 72.8% and 78.8%. The thermal conductivity of binary molten salts was enhanced by 4.9–6.9 times after impregnation with EG. SEM photographs showed that the prepared composites were more homogeneous in comparison to other salt/EG composites prepared by infiltration or compression. Phase change properties of the porous heterogeneous composite phase change materials showed great thermal stability, which was maintained after 100 cycles.
登录
查看更多内容
DOI：
10.1016/j.ijheatmasstransfer.2012.11.034
发表时间：
2013-03
影响因子：
5.2
作者：
Yuan Tian;Changying Zhao
通讯作者：
Yuan Tian;Changying Zhao
影响因子：
11.2
作者：
Li, Min;Wu, Zhishen;Tan, Jinmiao
通讯作者：
Tan, Jinmiao
影响因子：
6.7
作者：
H. Michels;R. Pitz‐Paal
通讯作者：
H. Michels;R. Pitz‐Paal
影响因子：
6.7
作者：
Karaipekli, Ali;Sari, Ahmet
通讯作者：
Sari, Ahmet
癸酸/埃洛石纳米管复合材料作为形态稳定的相变蓄热材料的制备
影响因子：
6.9
作者：
Mei, Dandan;Zhang, Bing;Liu, Jindun
通讯作者：
Liu, Jindun