Influence of nanographene platelets (NGP) incorporation on Fe3O4 nanoparticles as materials additives for enhancement thermal properties stearic acid

8th International Conference on Physics and its Applications

Nuryadin, M.K.^1,2 ; Andiarto, R.^1,2 ; Taufik, A.^1,2 ; Saleh, R.^1,2

Departemen Fisika, Fakultas MIPA, Universitas Indonesia, Depok

16424, Indonesia^1

Integrated Laboratory of Energy and Environment, Fakultas MIPA, Universitas Indonesia, Depok

16424, Indonesia^2

关键词: Dispersion technique;    Fe3O4 nanoparticles;    Thermal Performance;    Vibrating sample magnetometer;    X ray diffractometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012037/pdf
DOI  :  10.1088/1742-6596/776/1/012037

来源: IOP

【 摘 要 】

In this work, Fe3O4nanoparticles, and Fe3O4/NGP composite were used as material additive for enhancement thermal properties of stearic acid (SA). The both material additive were synthesized using sol-gel method. Phase change material (PCM) composites SA-Fe3O4and Sa-Fe3O4/NGP mixtures were made through the dispersion technique with three different weight % ratio of material additives into stearic acid: 1 wt.%, 3 wt.%, and 5 wt.%. X-Ray Diffractometer (XRD) and Fourier Transform Infrared (FTIR) spectroscopy were used to investigate the structural properties. Magnetic properties also measured by vibrating sample magnetometer (VSM) to see influence of NGP in PCM composites. Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) were used in order to analyse the thermal properties of the samples. The results show an enhancement of the latent heat, thermal stability as well as specific heat by the presence of material additives in SA. Compare to SA- Fe3O4, SA-Fe3O4/NGP show better improvement in enhancement of thermal performance of SA. The improvement by about 41.2% in specific heat and 21.2% in latent heat.