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Lithium-sulfur batteries represent one of the next-generation Li-ion batteries; yet rapid performance degradation is a major challenge. Herein, a highly crosslinked copolymer is synthesized through thermally activated polymerization of sulfur and trithiocyanuric acid onto the surface of reduced graphene oxide nanosheets. Of the thus-synthesized composites, the sample with a high sulfur content of...
Carbon nanotubes (CNTs) were chemically modified to achieve strong binding strength with the attached functional components as well as good dispersability and nanoparticle size-uniformity. An efficient multi-oxidation process was developed to create porous out layer with many nanoscale defects on the surface of CNTs for metallic nanoparticle close attachment and bond sufficient oxygen-containing groups,...
Fluorine-doped carbon nitride (FC3N4) quantum dots were successfully synthesized on a large scale by a facile ethylene glycol-assisted ultrasonic method using bulk FC3N4 powder as the precursor and ethylene glycol as the solvent. Characterization results show that high-quality FC3N4 quantum dots with a uniform size of 1.5–2.0 nm were successfully prepared in ethylene glycol. Ethylene glycol is found...
Graphitic carbon nitride (g-C3N4), composed of only non-metallic elements, possesses a graphene-like structure and an appropriate band gap around 2.7 eV. It is finding its promising applications in sustainable chemistry. In this paper, highly ordered laminated porous carbon nitride nanostructures (OLP-C3N4) are successfully prepared via a novel two-step hydrothermal-calcination method using acetic...
Two-beam-laser interference was used for the simultaneous reduction, patterning and nanostructuring of graphene oxide on flexible polyethylene terephthalate substrates for the production of a high performance humidity sensing device. Hierarchical graphene nanostructures were formed after laser interference treatment of graphene oxide, which holds great promise for gaseous molecular adsorption, and...
A novel method was developed to synthesize graphite oxide/TiO 2 composites as a highly efficient photocatalyst by in situ depositing TiO 2 nanoparticles on graphene oxide nano-sheets by a liquid phase deposition, followed by a calcination treatment at 200°C. The two-dimensional porous graphene oxide/TiO 2 composites had specific surface area of 80m 2 g −1 being...
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