Thermophysical Investigation of Multiform NiO Nanowalls@carbon Foam/1-Octadecanol Composite Phase Change Materials for Thermal Management

Molecules, Journal Year: 2024, Volume and Issue: 29(18), P. 4453 - 4453

Published: Sept. 19, 2024

Multiform NiO nanowalls with a high specific surface area were constructed in situ on carbon foam (CF) to construct NiO@CF/OD composite phase change materials (CPCMs). The synthesis mechanism, microstructures, thermal management capability, and photothermal conversion of CPCMs systematically studied. Additionally, the collaborative enhancement effects CF multiform properties OD PCMs also investigated. NiO@CF not only maintains porous 3D network structure CF, but effectively prevents aggregation nanosheets. chemical structures analyzed using XRD FTIR spectroscopy. When combined nanosheets, has compatibility NiO@CF. conductivity NiO@CF/OD-L was 1.12 W/m·K, which is 366.7% higher than that OD. improvement theoretically according Debye model. have efficiency up 77.6%. This article provided theoretical basis for optimal design performance prediction storage systems.

Language: Английский

Experimental investigation of dodecanoic acid–tetradecanoic acid–dodecanol ternary mixture based nanoparticle enriched-phase change material for food preservation applications

Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 13, 2024

In this research, a novel phase change material (PCM), containing dodecanoic acid-tetradecanoic acid-dodecanol ternary mixture, designated as pure dispersed with two carbon-based nanoparticles, i.e., graphene nanoplatelets - multiwall carbon nanotube and nanoplatelets-titanium dioxide, 1% weight fraction, is prepared nanoparticle-enriched-phase material. The chemical thermal analysis of mixture was conducted using X-ray diffraction, Scanning electron microscopy, Differential scanning calorimetry, Fourier transform infrared, Thermo gravimetric analyser Thermal conductivity techniques. possess melting freezing temperature 15.6°C 8.4°C melting-freezing latent heat (LH) 131.5 J/g 125.4 J/g, respectively. exhibited significant increase 187.6% in the case nanoplatelets- 41.7% for dioxide. Moreover, PCM remained thermally stable both cases, even incorporation nanoparticles. well LHs were reduced by about 18.17% 18.02% and, 12.49% 9.49% titanium dioxide PCM, respectively, comparison mixture. Similarly, melting/freezing temperatures, gets also 9.6%/8.3% 10.9%/8.3%, mixtures. substantial decrease charging discharging times, reductions 28.48% 18.73%, to at an air inlet velocity 3 m/s.

Language: Английский

Sea urchin-like Fe3O4 hollow microspheres/fatty amines composites phase change materials for highly efficient light-to-thermal conversion and heat storage

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 102, P. 114152 - 114152

Published: Oct. 19, 2024

Language: Английский