Healable supramolecular phase change polymers for thermal energy harvesting and storage

Anisotropic hemp-stem-derived biochar supported phase change materials with efficient solar-thermal energy conversion and storage

“…The confining effect of the porous structure of CH on PEG6000, and the hydrogen bonding interactions between the biochars and PEG6000 also hindered the thermal diffusion movement of PEG molecular chain segments. These factors together slowed down the phase transition process of confined PEG6000 from the crystalline to the amorphous state in CPCMs (Cao et al 2022). The slightly lower solidification temperatures (T S ) of CPCMs compared to pure PEG6000 can be due to the restriction of PEG molecular chain movement by the porous carbon network, which in turn limits the crystallization process and leads to a reduction of crystallization segments (Wang et al 2019).…”

Phase Change Material (PCM) Composite Supported by 3D Cross-Linked Porous Graphene Aerogel

“…To provide stable and continuous electrical voltage and current, the main materials should be placed on the pyro-electrode [21,22]. Therefore, PCMs are the most appropriate candidates to achieve the main purpose of energy harvesting [23,24]. The high thermal energy storage (TES) is applied to the pyro system by using PCM composites, which can make a stable temperature variation and generate stable pyroelectric energy in the closed circuit [25,26].…”

Leak-free and shape-stabilized phase change composites with radial spherical SiO2 scaffolds for thermal management

“…[14][15][16][17] It is well known that utilizing chemical bonds is a common approach to solving the above problems such as comb-like molecules 18,19 and interpenetrating polymer networks (IPNs). [20][21][22] Likewise, physical interaction represented by microencapsulation is also a feasible option. [23][24][25] In terms of chemical structure modification, although comb-like molecular chains and IPNs can improve the heat resistance and stability of PCMs, the steric hindrance and cross-linking points of molecular chains affect their processing stability and product performance.…”