![]() The obtained PCCs lead to a surprising temperature decline of nearly 35 ☌ of a commercial lithium-ion battery during a high discharge rate (7.4 C). In addition, the introduction of graphene sheets further boosts the thermal conductivity of PCCs to 2.69 W m⁻¹ K⁻¹. With a 2 content of 70 wt%, the PCCs have a high latent heat of 126.1 J/g and enhanced thermal conductivity of 0.37 W m⁻¹ K⁻¹, which is 131.25% higher compared to that of pure SR. It is found that the inorganic SiO2 shell is conducive to enhancing the thermal conductivity of PCCs and the double encapsulation by the SiO2 shell and SR skeleton can restrict the leakage of liquid Pa during phase transition. #Capillary microspheres core shell seriesHerein, a series of dioxide microcapsules (2)/graphene sheets (GS)/silicone rubber (SR) phase change composites (PCCs) were prepared. However, the leakage problem and low thermal conductivity are two obstructive factors for the extended application of PCMs. Phase change materials (PCMs) are potential candidates in passive thermal regulation and energy storage fields due to their high latent heat capacity around phase transition temperature. The strategy adopted presents a new way to prepare a high-performance reusable IMAC sorbent. As a result, the Ti⁴⁺-CM sorbent could be reused, and no significant loss of enrichment efficiency occurred even on the fourth run employing a β-casein digest as the sample. Owing to the strong chelation between Ti⁴⁺ and pyrogallol ligands, the Ti4+ is not released from the sorbent after completion of the enrichment process. A total of 106 of unique phosphopeptides mapped to 29 phosphoproteins were clearly identified from 5 µL of a milk digest after enrichment. The resulting Ti⁴⁺-CM exhibited high enrichment efficiency and specificity to phosphopeptides. After modification with pyrogallol groups, CM could chelate titanium ions (Ti⁴⁺) and thus be utilized as immobilized metal affinity chromatography (IMAC) sorbent to enrich phosphopeptides from biological samples. In this way, the agglomeration of nanodiamond particles in the solution was avoided. ![]() The presence of a much hollow structure in SOS-MH particles enables the thermal conductivity of polyacrylonitrile (PAN)/SOS-MH composite fibrous membranes (0.0307 W m-1 K-1) to decrease by about 40% compared to that of pure PAN fibrous films (0.0520 W m-1 K-1) at the same thickness of 1 mm, and the material also has moisture resistance due to the existence of a hierarchical shell.Ī kind of core–shell composite microsphere (CM) with nano-on-micro structure was synthesized via grafting amine-modified nanodiamonds onto the surface of monodisperse nonporous polymeric microsphere. To reduce thermal insulation coefficient of the material, the PS phase in SOS particles is removed to obtain the particles with multiscale hollow structure (SOS-MH), which have more hollow cavities to encapsulate more air. Then, the St monomers located in cavity migrate outward under the combined action of capillary force stemming from mesoporous and osmotic pressure generating from inside-outside of the PSQ shell and polymerize on the outside of the hollow PSQ shell, in which residual siloxane oligomers further anchor on the polystyrene (PS) surface to reduce the surface energy of the system, finally resulting in the successful formation of SOS particles. Amphiphilic siloxane oligomers generated in situ from methyltriethoxylsilane (MTES) under acidic conditions are anchored on the surface of soft template St monomer droplets, sequentially completing hydrolysis-polycondensation and forming a mesoporous polysilsesquioxane (PSQ) shell. In this study, a one pot nanoengineering strategy inspired by the automatic transport behavior of water in plants is successfully developed to fabricate SOS microsphere in tandem with a traditional soft template method in the preparation of hollow structure. The current syntheses of spheres-on-sphere (SOS) microsphere, which possesses both hollow cavity and hierarchical structure, mainly rely on complicated routes and template removal. ![]()
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