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Diverting the phase transition behaviour of adipic acid via mesoporous silica confinement
Liu, Shang1,2; Ma, Guixiang1,2; Xie, Shaolei1; Jia, Yongzhong1; Sun, Jinhe1; Jing, Yan1
2016
发表期刊RSC Advances
卷号6期号:113页码:111787-111796
文章类型Article
摘要Manipulating the phase transition behaviour of phase change materials (PCMs) to a favorable range is an urgent issue which poses a considerable challenge to their widespread application, since PCMs with desirable operational temperatures and high efficiency are very few in practice. An attempt to address this puzzle is presented by confining adipic acid in silica scaffolds through an impregnation method. Three different nanoscale chambers - 2D-hexagonal silicas MCM-41 and SBA-15, and 3D-silica mesoporous foam (MCF) - were employed. In this way, novel form-stable PCMs were developed, which acquired size-dependent thermal behaviour. The evolution of thermal behaviour as a function of pore size was investigated. Phase transition temperature (T-m) deviations presented a strong linear relationship with inverse pore sizes, conforming to the modified Gibbs-Thomson equation. Enthalpy changes (Delta H-m) shared the same trend with T-m, as pore sizes decreased, while the variation of phase transition temperatures (Delta T-m) was in the opposite direction. Unlike the bulk state, the phase transition temperature of adipic acid in a confined space could be regulated over 90 degrees C. The maximum thermal storage efficiency was 72% with respect to the confined acid content. Thus, the solid-liquid phase transition behaviour of adipic acid in a confined space could be altered, and the manipulation of thermal behaviour was achieved.
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]THERMAL-ENERGY STORAGE ; CHANGE MATERIALS PCMS ; HEAT-STORAGE ; DRUG-DELIVERY ; ADSORPTION ; SBA-15 ; MCM-41 ; PORES ; WATER ; TEMPERATURE
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000389708700017
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6174
专题青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Liu, Shang,Ma, Guixiang,Xie, Shaolei,et al. Diverting the phase transition behaviour of adipic acid via mesoporous silica confinement[J]. RSC Advances,2016,6(113):111787-111796.
APA Liu, Shang,Ma, Guixiang,Xie, Shaolei,Jia, Yongzhong,Sun, Jinhe,&Jing, Yan.(2016).Diverting the phase transition behaviour of adipic acid via mesoporous silica confinement.RSC Advances,6(113),111787-111796.
MLA Liu, Shang,et al."Diverting the phase transition behaviour of adipic acid via mesoporous silica confinement".RSC Advances 6.113(2016):111787-111796.
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