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Graphene oxide (GO) is one of the most popular materials for preparing aerogels as monolith electrodes for supercapacitors because of its promising mechanical property and relatively good conductivity after thermal reduction. However, low surface area and restacking of reduced graphene nanosheets still limit the performance of the supercapacitors based on GO-derived aerogels. In this work, graphene-coupled...
A facial, one-step soft templating method to synthesize the hollow mesoporous g-C3N4 spheres with high surface area and high porosity was developed, which taking advantage of both supramolecular assembly of cyanuric acid and melamine through hydrogen bonds and the structure-directing character of ionic liquid. The influence of solvent and ionic liquid content on the assemble behavior of the cyanuric...
A facile synthetic strategy was developed for novel Au-loaded magnetic SiO2/carbon yolk-shell ellipsoids (Fe@SiO2-Au@H-C) composing of magnetic Fe@SiO2 yolks, mesoporous carbon shells and numerous sub-3 nm Au nanoparticles (NPs). The SiO2/polymer resin double-shell structures (Fe2O3@SiO2@RF) were prepared by the one-pot extended Stöber method, followed by carbonization-hydrothermal etching to attain...
Graphene layers, which were used to prevent metal-molecule interactions and improve the stability of the metal nanoplasmonics, have drawn a tremendous amount of attention in SERS application. At the same time, Cu substrate is usually etched to transfer the graphene onto the target substrates. The transfer process would always be time-consuming, which severely hinders its future application. Facial...
A hybrid film of graphene decorated with poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) nanoparticles is fabricated by a simple non-solvent induced precipitation method. The structure of the graphene film and graphene/MEH-PPV hybrid film are investigated by scanning electron microscopy, atomic force microscopy and X-ray photoelectron spectroscopy. The large specific surface...
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