Understanding the interaction between noble metals (NMs) and epitaxial graphene is essential for design fabrication of novel devices. Within this framework, a combined experimental theoretical investigation effect vapor-deposited NM (silver [Ag] gold [Au]) nanostructures on vibrational electronic properties monolayer (MLG) 4H-SiC presented. Large sets Raman scattering data are analyzed using su...

Detection of decomposition products of sulfur hexafluoride (SF₆) is one of the best ways to diagnose early latent insulation faults in gas-insulated equipment, and the occurrence of sudden accidents can be avoided effectively by finding early latent faults. Recently, functionalized graphene, a kind of gas sensing material, has been reported to show good application prospects in the gas sensor f...

Porous graphene oxide can be used as a metal-free catalyst in the presence of air for oxidative coupling of primary amines. Herein, we explore a GO-catalyzed carbon-carbon or/and carbon-heteroatom bond formation strategy to functionalize primary amines in tandem to produce a series of valuable products, i.e., α-aminophosphonates, α-aminonitriles, and polycyclic heterocompounds. Furthermore, whe...

With the broad applications of two-dimensional transition, metal dichalcogenides in gas sensing prompt us to investigate adsorption and properties bare metal-decorated tungsten disulfide (WS 2 ) interaction with nonanal octanal molecules by using first-principles methods. In this regard, calculations based on density functional theory (DFT) have been employed study detection as well-known breas...

Broadband on-chip optical frequency combs (OFCs) are important for expanding the functionality of photonic integrated circuits. Here, we demonstrate a huge local optical nonlinearity enhancement using graphene. A waveguide is decorated with graphene by precisely manipulating graphene's area and position. Our approach simultaneously achieves both an extremely efficient supercontinuum and ultra-s...

In the present work,MoS2 decorated graphene nanocomposite powders were synthesized by laser scribing method.Theobtainedflexible light-scribed graphene/MoS2composites are very suitableas micro-supercapacitors and thus their performance was evaluated at different concentrations.The effect of laser scribing process to reducegraphene oxide (GO) was investigated. The GO/MoS2composite wassynthesized ...

• Novel in-situ HDO strategy with H 2 O as hydrogen source. N-doped reduced graphene oxide (RGO) advanced supports. Comparison among Pt-based and Ni RGO supported catalysts for ‘H -free’ of guaiacol. Innovate route economically viable biomass upgrading. Herein we present an innovative model compounds upgrading via “H -free” hydrodeoxygenation (HDO) reactions. The underlaying idea is to implemen...

Hybridization of distinct materials into a single nanoplatform is relevant to advance material’s properties for functional application such as biosensor platform. We report the synthesis and characterization of nanosheets of graphene oxide decorated with hybrid nanoparticles of silver-ruthenium bipyridine complex (Ag@[Ru(bpy)3] ) core and chitosan shell. Hybrid nanoparticles were first obtained...

We report the experimental evidence for the formation of multi-quantum dots in a hydrogenated single-layer graphene flake. The existence of multi-quantum dots is supported by the low-temperature measurements on a field effect transistor structure device. The resulting Coulomb blockade diamonds shown in the color scale plot together with the number of Coulomb peaks exhibit the characteristics of...

Three-dimensional (3D) graphene aerogels (GA) show promise for applications in supercapacitors, electrode materials, gas sensors, and oil absorption due to their high porosity, mechanical strength, and electrical conductivity. However, the control, actuation, and response properties of graphene aerogels have not been well studied. In this paper, we synthesized 3D graphene aerogels decorated wit...