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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
Source PublicationRSC Advances
Volume6Issue:113Pages:111787-111796
SubtypeArticle
AbstractManipulating 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 HeadingsScience & Technology ; Physical Sciences
WOS KeywordTHERMAL-ENERGY STORAGE ; CHANGE MATERIALS PCMS ; HEAT-STORAGE ; DRUG-DELIVERY ; ADSORPTION ; SBA-15 ; MCM-41 ; PORES ; WATER ; TEMPERATURE
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000389708700017
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6174
Collection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
Affiliation1.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
Recommended Citation
GB/T 7714
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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