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Novel boron and nitrogen co-doped hierarchically porous carbon networks were prepared through a green, simple, and innovative template-free pyrolysis of agarose hydrogel containing TBE buffer (Tris base, boric acid and ethylenediaminetetraacetic acid) followed by chemical activation (KOH). The resulting materials with 3D interconnected hierarchically pore structure, high specific surface area of 2666 m...
Heterogeneous catalysts that are prepared by immobilizing noble metal nanoparticles (NPs) on solid matrices can serve as efficient catalysts in various catalytic reactions. However, the immobilized NPs usually suffer from detachment or migration during the catalytic process owing to their weak interactions with the matrices. Here, we developed a facile approach for the synthesis of high active and...
In this study, nanocomposite films of poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF–HFP) incorporating polyethylenimine (PEI)-covalently modified graphene sheets (rGO–PEI) were prepared by a solution-cast method, and the dielectric properties of the films were studied. Infrared spectroscopy, atom force microscope, X-ray photoelectron spectroscopy, solid state NMR spectroscopy, Raman, thermogravimetry...
The direct carbon fuel cell (DCFC) has been considered an efficient way to mitigate the energy crisis and environmental pollution issues, owing to its high energy conversion efficiency, low pollution, and abundant and readily available resources, but its performance is closely related to the fuel used. We give a brief introduction to the development of DCFCs and a review of the current status of DCFC...
A new route for the synthesis of silicon nanoparticle (Si NP)/carbon nanotube (CNT) composites by a low-temperature magnesiothermic reduction process is presented. The size of the Si NPs can be controlled by varying the silica (SiO 2 ) thickness of SiO 2 /CNT precursors. The structural and morphological characterizations of the Si NP/CNT composites have been carried out using powder...
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