Molecules, Vol. 24, Pages 3777: Synthesis and Thermophysical Characterization of Fatty Amides for Thermal Energy Storage

Molecules, Vol. 24, Pages 3777: Synthesis and Thermophysical Characterization of Fatty Amides for Thermal Energy Storage
Molecules doi: 10.3390/molecules24203777
Authors:
Anna Canela-Xandri
Gemma Villorbina
Mercè Balcells
Xavier Fernández-Francos
Luisa F. Cabeza
Ramon Canela-Garayoa

Nine monoamides were synthesized from carboxylic acids (C8–C18) and crude glycerol. The final monoamides were the result of a rearrangement of the acyl chain during the final hydrogenation process. The purity of the final compounds was determined by spectroscopic and mass spectrometry (MS) techniques. The thermophysical properties of solid monoamides were investigated to determine their capability to act as phase change materials (PCM) in thermal energy storage. Thermophysical properties were determined with a differential scanning calorimeter (DSC). The melting temperatures of the analyzed material ranged from 62.2 °C to 116.4 °C. The analyzed enthalpy of these monoamides ranged from 25.8 kJ/kg to 149.7 kJ/kg. Enthalpy values are analyzed considering the carbon chain and the formation of hydrogen bonds.

Source: Molecules - October 20, 2019 Category: Chemistry Authors: Anna Canela-Xandri Gemma Villorbina Merc è Balcells Xavier Fern ández-Francos Luisa F. Cabeza Ramon Canela-Garayoa Tags: Article Source Type: research