Development of novel biomass hybrid aerogel supported composite phase change materials with improved light-thermal conversion and thermal energy storage capacity

Wei, Dan; Weng, Mengman; Mahmoud, M. H. H.; Elnaggar, Ashraf Y.; Azab, Islam H. El; Sheng, Xinxin; Huang, Mina; El‐Bahy, Zeinhom M.; Huang, Jintao

doi:10.1007/s42114-022-00519-x

Cited by 64 publications

(13 citation statements)

References 53 publications

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“…Even so, the insulation effect achieved by the porous aerogel structure alone cannot fully meet the infrared stealth requirements because of the limited heat capacity and rapid heat equilibrium rate. Therefore, n-octadecane with thermal energy absorption capacity , is partially impregnated into the bottom half of the aerogel skeleton to optimize the heat-insulating behavior (Figures S9 and S10a). Notably, n-octadecane is firmly encapsulated in the MG aerogel via capillary action, − in which it skillfully distributes in the bottom part and adheres to the walls (Figures S3 and S10b), preserving porous channels to insulate sensible heat after completing the transformation.…”

Section: Resultsmentioning

confidence: 99%

Adaptive and Adjustable MXene/Reduced Graphene Oxide Hybrid Aerogel Composites Integrated with Phase-Change Material and Thermochromic Coating for Synchronous Visible/Infrared Camouflages

Luo

Yang

et al. 2023

ACS Nano

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Although single-function camouflage under infrared/visible bands has made great advances, it is still difficult for camouflage materials to cope with the synergy detection spanning both visible and infrared spectra and adapt to complex and variable scenarios. Herein, a trilayer composite integrating thermal insulation, heat absorption, solar/electro-thermal conversions, and thermochromism is fabricated for visible and infrared dual camouflages by combining anisotropic MXene/reduced graphene oxide hybrid aerogel with the n-octadecane phase change material in its bottom and a thermochromic coating on its upper surface. Benefiting from the synergetic heat-transfer suppression derived from the thermal insulation of the porous aerogel layer and the heat absorption of the n-octadecane phase-change layer, the composite can serve as a cloak to hide the target signatures from the infrared images of its ambient surroundings during the day in the jungle and at night in all scenes and can assist the target in escaping visual surveillance by virtue of its green appearance. For desert scenarios, the composite can spontaneously increase its surface temperature via its solar-thermal energy conversion, merging infrared images of the targets into the high-temperature surroundings; meanwhile, it can vary the surface color from the original green to yellow, enabling the target to visually disappear from ambient sands and hills. This work provides a promising strategy for designing adaptive and adjustable integrated camouflage materials to counter multiband surveillance in complicated environments.

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Section: Resultsmentioning

confidence: 99%

Adaptive and Adjustable MXene/Reduced Graphene Oxide Hybrid Aerogel Composites Integrated with Phase-Change Material and Thermochromic Coating for Synchronous Visible/Infrared Camouflages

Luo

Yang

et al. 2023

ACS Nano

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“…The recent improvements in the area of the membrane have diverged the applications including a hybrid biomass composite aerogel used in photothermal storage, a wood-based polymer complex for usage as bricks in smart homes, and waterborne polyurethane nanocomposite for biomedical applications. [51][52][53]…”

Section: Discussionmentioning

confidence: 99%

Fabrication of Nanoparticle‐Doped Polyvinyl Alcohol‐Cellulose Acetate Membrane and Characterization of the Surface Enhancement

Ravichandran¹,

Venkatachalam²,

Sengottian³

et al. 2023

CLEAN Soil Air Water

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In the present study, nanocomposite polymeric membranes are fabricated using polyvinyl alcohol (PVA), cellulose acetate (CA) as polymers, and dimethyl sulfoxide (DMSO) as the solvent. To enhance the performance of the membrane, nanoparticles like TiO2, CaO, CdO, and ZrO are added to the polymeric solution and the doped polymeric solution is cast on a glass plate. Nine combinations of membranes are fabricated with two different concentrations (0.1% and 0.2%) of nanoparticles. The basic properties of the membranes such as density, porosity, viscosity, permeability, pure water flux, and water content are studied for the samples. Membrane pore structure and surface properties are identified and it is found that doping nanoparticles on the surface of membranes improve mechanical strength, stability, pore size, etc., allowing the membranes to perform better in extreme industrial‐level effluent treatment applications. High‐resolution scanning electron microscopy (SEM) shows the homogeneous dispersion of ZrO, TiO2, CaO, and CdO nanoparticles on the surface of the PVA‐CA membrane. The doping of nanoparticles on the PVA‐CA membrane results in improved mechanical strength and good chemical oxidation stability. In comparison, the PCD‐TiO2 sample shows high thermal stability and oxidation stability at high temperatures until 200°C, which has a high potential for treating industrial effluents.

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“…[37][38][39] A supercapacitor is mainly composed of several parts including a current collector, electrode, electrolyte and diaphragm, where the diaphragm plays a role in separating the two electrodes, preventing a short circuit between the electrodes, and allowing ions to pass through. [40][41][42][43] Electrolytes are homogeneous mixtures of acids, alkaline or salts with specific solvents and can be mainly classified as liquid electrolytes and solid electrolytes. Among them, solid electrolytes can be divided into all-solid electrolytes and quasi-solid electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Progress of layered double hydroxide-based materials for supercapacitors

Ren

Sridhar³

et al. 2023

Mater. Chem. Front.

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Development of novel biomass hybrid aerogel supported composite phase change materials with improved light-thermal conversion and thermal energy storage capacity

Cited by 64 publications

References 53 publications

Adaptive and Adjustable MXene/Reduced Graphene Oxide Hybrid Aerogel Composites Integrated with Phase-Change Material and Thermochromic Coating for Synchronous Visible/Infrared Camouflages

Adaptive and Adjustable MXene/Reduced Graphene Oxide Hybrid Aerogel Composites Integrated with Phase-Change Material and Thermochromic Coating for Synchronous Visible/Infrared Camouflages

Fabrication of Nanoparticle‐Doped Polyvinyl Alcohol‐Cellulose Acetate Membrane and Characterization of the Surface Enhancement

Progress of layered double hydroxide-based materials for supercapacitors

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