Flame retardant and form-stable phase change composites based on phytic acid/dopamine-decorated delignified wood for efficient solar-thermal energy conversion and storage

Reduced Graphene Oxide/Cellulose Sodium Aerogel-Supported Eutectic Phase Change Material Gel Demonstrating Superior Energy Conversion and Storage Capacity toward High-Performance Personal Thermal Management

“…BEPCMs are composed of two components with different melting points, and the melting point of the mixture is lower than that of a single material, thus providing an economical alternative. The findings demonstrate that the phase transition temperature of BEPCMs − are compatible with the needs of different industries compared to single PCMs. Obviously, BEPCMs and PCMs are battling with comparable predicaments.…”

Highly Stretchable Ti3C2Tx MXene-Integrated Phase Change Films for Solar-Thermal Harvesting and Infrared Stealth

“…Two crystalline phases are clearly visible in the n -eicosane spectrum at 2θ = 7.1, 10.6, 14.2, 39.9, and 44. 7°, which corresponded to the α crystal planes of (0 0 2), (0 0 3), (0 0 4), (0 2 2), and (2 0 7) and 2θ = 19.5, 23.5, 24.9, and 25.5°, which correspond to the β crystal planes of (0 1 0), (1 0 5), (−1 0 1), and (1 1 0) . Since SR is an amorphous elastomer, the XRD spectra of SPCF composed of SR and n -eicosane showed similar crystalline behavior to n -eicosane.…”

“…7°, which corresponded to the α crystal planes of (0 0 2), (0 0 3), (0 0 4), (0 2 2), and (2 0 7) and 2θ = 19.5, 23.5, 24.9, and 25.5°, which correspond to the β crystal planes of (0 1 0), (1 0 5), (−1 0 1), and (1 1 0). 55 Since SR is an amorphous elastomer, the XRD spectra of SPCF composed of SR and neicosane showed similar crystalline behavior to n-eicosane. As shown in Figure 2b, the peaks in the spectrum of reagent A and reagent B at 1630 cm −1 were attributed to the stretching vibration of C�C, 56 which weakened significantly in the spectra of SPCF.…”

Flame-Retardant and Form-Stable Phase-Change Composites Based on Phytic Acid/ZnO-Decorated Surface-Carbonized Delignified Wood with Superior Solar-Thermal Conversion Efficiency and Improved Thermal Conductivity

“…Recently, encapsulating n -alkanes into porous materials, such as aerogels, mesoporous silica, carbon foam, expanded graphite, metal–organic frameworks, and wood, is the most accessible and attractive technique to avoid liquid issue due to the strong capillary force and surface tension. − Wood is a natural renewable porous material with unique hierarchical structure, favorable mechanical strength, superior absorption capacity, and low price. − The delignified wood (DW) is considered the most attractive supporting material for n -alkane encapsulation after lignin and hemicellulose removal. , However, the poor solar-thermal conversion performance and low thermal conductivity of natural wood and n -alkanes greatly restrict their practical applications for solar-thermal utilization. , Furthermore, both natural wood and n -alkanes are highly flammable, thereby seriously limiting their application in fire-proof thermal storage fields . Therefore, it is essential to develop wood-based form-stable PCM composites simultaneously with superior solar-thermal storage efficiency, excellent flame retardancy, and improved thermal conductivity.…”