Preparation and thermal properties of palmitic acid/polyaniline/exfoliated graphite nanoplatelets form-stable phase change materials

Ju-Lan Zeng, Shuang-Hao Zheng, Sai-Bo Yu, Fu-Rong Zhu, Juan Gan, Ling Zhu, Zhong-Liang Xiao, Xin-Yu Zhu, Zhen Zhu, Li-Xian Sun and Zhong Cao

Applied Energy, 2014, vol. 115, issue C, 603-609

Abstract: Exfoliated graphite nanoplatelets (xGnP) were applied to enhance the thermal conductivity of polyaniline (PANI) based form-stable phase change materials (PCMs). The xGnP was first dispersed in palmitic acid (PA) uniformly under the assistance of ultra-sonication. The xGnP/PA mixture was then applied to prepare PA/PANI/xGnP form-stable PCMs, in which PANI was obtained by means of surface polymerization of aniline and acted as supporting material. The content of PA in the prepared form-stable PCMs was fixed as 75wt%. The structure, thermal energy storage properties and thermal conductivity of the PA/PANI/xGnP form-stable PCMs were investigated. The results showed that the thermal conductivity of the prepared form-stable PCMs could be greatly improved by xGnP while the thermal energy storage capacity was maintained. The thermal conductivity and thermal energy storage capacity of the PA/PANI/xGnP form-stable PCM doped with 7.87wt% of xGnP could attain 1.08W/(mK) and 157.7J/g, respectively. The thermal conductivity was 237.5% higher than that of PA/PANI form-stable PCM. The prepared PA/PANI/xGnP form-stable PCM is expected to exhibit better performance in solar thermal energy applications.

Keywords: Form-stable phase change materials; Solar energy; Thermal energy storage; Exfoliated graphite nanoplatelets; Thermal conductivity (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (12)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S030626191300891X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:115:y:2014:i:c:p:603-609

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2013.10.061

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().