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Effect of Fabrication Methodology on Morphology, Conductivity, and Thermal‐Energy Storage of a Stearic Acid/Doped‐Polyaniline Phase‐Change Material
Author(s) -
Wang Yi,
Ji Hui,
Zhang Ting,
Shi Huan,
Zhang Deyi,
Feng Huixia
Publication year - 2015
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201500024
Subject(s) - materials science , polyaniline , differential scanning calorimetry , chemical engineering , doping , thermal energy storage , stearic acid , energy storage , composite number , phase change material , composite material , thermal , polymerization , polymer , ecology , power (physics) , physics , optoelectronics , quantum mechanics , biology , meteorology , engineering , thermodynamics
To develop a new composite with features of thermal‐energy storage and electrical conductivity, stearic acid (SA)/doped polyaniline (PANI) composite phase‐change materials (PCMs) were fabricated using SA as a thermal‐energy storage material and doped PANI as the support material. The influence of the synthetic parameters on the morphology, conductivity, and thermal‐energy storage abilities of SA/doped‐PANI was investigated. The results show that doped PANI has good affinity for SA because hydrogen bonding leads to the formation of a uniform and close coating. Nuclei of doped PANI grew on the SA surface and retained its original morphological structure. The morphology of SA/doped‐PANI can be regulated by adjusting the reaction conditions. SA in the SA/doped‐PANI acts as a structure‐directing agent, thermal‐energy storage medium, and co‐doping agent. The differential scanning calorimetry results indicate that the thermal‐energy storage performance of SA/doped‐PANI will be enhanced if a low reaction temperature is used with oil‐soluble benzoyl peroxide as the oxidant and sulfamic acid as the doping acid.