Synthesis and characterization of new organic phase change materials (PCMs): Diesters of suberic acid

Suberic Acid-Modified Y-Co(OH)2 Nanosheets with Cationic Vacancies for Efficient Oxygen Evolution Reaction

“…The presence of SA is confirmed by Fourier transform infrared spectra (FT-IR) tests, as shown in Figure b, for NSA-Y 0.05 -Co­(OH) 2 , the peaks at 3621 and 660 cm –1 correspond to the stretching vibration of −OH and the vibration of Co–O bond, respectively, and the corresponding peaks appear in DSA-Y 0.05 -Co­(OH) 2 , further verifying the Co­(OH) 2 presence . In addition, the peaks at 2930, 2850, 1540, and 1443 cm –1 are attributed to the asymmetric and symmetric stretching vibrations of CH, and the asymmetric and symmetric stretching vibrations of COO – , respectively, unlike SA, no stretching vibration peak of CO is observed at 1686 cm –1 . The above results indicate the complete coordination of SA.…”

“…19 In addition, the peaks at 2930, 2850, 1540, and 1443 cm −1 are attributed to the asymmetric and symmetric stretching vibrations of CH, and the asymmetric and symmetric stretching vibrations of COO − , respectively, unlike SA, no stretching vibration peak of C�O is observed at 1686 cm −1 . 20 The above results indicate the complete coordination of SA. Meanwhile, as shown in Figure S2, sufficient-SAmodified Y 0.05 -Co(OH) 2 (SSA-Y 0.05 -Co(OH) 2 ) was obtained by adding an excess of SA, and the peaks at 3340 and 1625 cm −1 correspond to the stretching vibrations of −OH and C� O, respectively, demonstrating the presence of uncoordinated SA.…”

Sunlight-Triggered Phase Change Energy Storage Composite Materials for Human Body Thermal Management

“…Paraffin or fatty acid were selected as energy storage PCMs in the above studies; however, the above PCMs have lower thermal evaporation temperatures, resulting in significant limitations in the postprocessing. , In recent years, many researchers have developed ester PCMs with high latent heat, a low degree of supercooling, and high thermal stability, which are very promising as phase change energy storage materials. − …”

Novel urea‐based compounds as solid‐solid phase change materials: 1,3‐bisstearoylurea and 1,1,3,3‐tetrastearoylurea for thermal energy storage applications

“…To solve the handicaps and improve functionality, a new version of PCMs has been produced in the last few decades. Some of widely used or produced PCMs are paraffins, [3][4][5] alcohols, [6][7][8] fatty acids, 9,10 esters, [11][12][13][14][15][16][17] sulfonated paraffins, 18 some eutectics, 19,20 polymeric materials, 21 salts, 22 salt hydrates, [23][24][25] alloys, 26 and so on. They were investigated for space explorations, 27 solar energy storage systems, 28,29 greenhouses and buildings 30 ; textiles thermal comfort, [31][32][33] food and medical transportation, 34 industrial waste heat recovery, 35 highperformance electronic equipment, 36,37 and so on.…”