The demand for nanocomposites of graphene and carbonaceous materials decorated with metallic nanoparticles is increasing on account of their applications in science and technology. Traditionally, the production of graphene-metal assemblies is achieved by the non-environmentally friendly reduction of metallic salts in carbonaceous suspensions. However, precursor residues during nanoparticle grow...

Single-layer graphene decorated with monodisperse copper nanoparticles can support the size and mass-dependent catalysis of selective electrochemical reduction CO2 to ethylene (C2H4). In this study, various active adsorption sites nanostructured Cu-decorated have been calculated by using density functional theory provide insight into its catalytic activity toward carbon dioxide electroreduction...

Graphene oxide (GO), an amorphous insulatormaterial, has consists of a hexagonal ring based carbon network having both sp2-hybridized carbon atoms and sp3-hybridizedcarbons bearing hydroxyl andepoxide functional groups on either side of the sheet, whereas the sheet edges are mostly decorated by carboxyl and carbonyl groups [1-6]. These unique properties hold great promise for potential applicat...

0.1016/j.nanoen.2 lsevier Ltd. All rig thors. Tel.: +86 2 : zhanhu.guo@lam Abstract To increase the energy density of supercapacitors to approach that of batteries, the current research is always directed towards the cathode materials, whereas the anode materials are rarely studied. In the present work, single-crystalline Fe2O3 nanoparticles directly grown on graphene hydrogels are investigated...

Silver nanoparticle-decorated graphene nanocomposites were synthesized by a facile chemical reduction approach with the assistance of supercritical CO2 (ScCO2). The silver nanoparticles with diameters of 2-16 nm are uniformly distributed and firmly anchored on graphene nanosheets. The tribological properties of the as-synthesized nanocomposites as lubricant additives in engine oil were investig...

Abstract This work presents results for the adsorption of formaldehyde molecule on one Ti-graphene layer formed by 32 carbon atoms. Calculations are done under DFT (density functional theory) scope as implemented in Quantum espresso computer code. After equilibrium Ti position above a pristine graphene has been obtained, it is added CH 2 O to obtain configuration entire system. Previously also ...