A5038691862- Graphene research and applications
- Carbon Nanotubes in Composites
- Graphene and Nanomaterials Applications
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Fiber-reinforced polymer composites
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Polymer Nanocomposites and Properties
- Advanced Thermoelectric Materials and Devices
- Thermal properties of materials
- Mechanical Behavior of Composites
- Polymer Nanocomposite Synthesis and Irradiation
- Nanotechnology research and applications
- Molecular Junctions and Nanostructures
- Tribology and Wear Analysis
- Transition Metal Oxide Nanomaterials
- Aluminum Alloys Composites Properties
- Diamond and Carbon-based Materials Research
- Smart Materials for Construction
- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Advanced Materials and Mechanics
Henry Royce Institute
2016-2025
University of Manchester
2016-2025
Beijing Graphene Institute
2016-2020
Google (United States)
2016
University of Cambridge
2002-2014
University of Kuala Lumpur
2014
University of St Andrews
2008
Université Paris-Sud
2000
Laboratoire de physique des Solides
2000
University of Sussex
2000
We present the science and technology roadmap for graphene, related two-dimensional crystals, hybrid systems, targeting an evolution in technology, that might lead to impacts benefits reaching into most areas of society. This was developed within framework European Graphene Flagship outlines main targets research as best understood at start this ambitious project. provide overview key aspects graphene materials (GRMs), ranging from fundamental challenges a variety applications large number...
In this present review, the current status of intrinsic mechanical properties graphene-family materials along with preparation and bulk graphene-based nanocomposites is thoroughly examined. The usefulness Raman spectroscopy for characterization study graphene flakes their composites clearly exhibited. Furthermore, strategies are discussed reported in literature analysed. particular, through analyse several hundred papers on composites, we have found a unique correlation between filler...
Many routes have been developed for the synthesis of carbon nanotubes, but their assembly into continuous fibers has achieved only through postprocessing methods. We spun and ribbons nanotubes directly from chemical vapor deposition (CVD) zone a furnace using liquid source an iron nanocatalyst. This process was realized appropriate choice reactants, control reaction conditions, withdrawal product with rotating spindle used in various geometries. direct spinning CVD is extendable to other...
We report on the structural analysis of graphene oxide (GO) by transmission electron microscopy (TEM). Electron diffraction shows that average underlying carbon lattice maintains order and lattice-spacings graphene; a structure is clearly resolved in 80 kV aberration-corrected atomic resolution TEM images. These results also reveal single GO sheets are highly transparent stable beam, hence ideal support films for study nanoparticles macromolecules TEM. demonstrate this through physiological...
It′ll come out in the wash! Graphene oxide has been shown to be a stable complex of oxidative debris (red ellipses picture) strongly adhered functionalized graphene-like sheets. Under basic conditions is stripped from sheets, and resulting graphene conducting cannot easily resuspended water.
Graphene is one of the stiffest known materials, with a Young's modulus 1 TPa, making it an ideal candidate for use as reinforcement in high-performance composites. However, being one-atom thick crystalline material, graphene poses several fundamental questions: (1) can decades research on carbon-based composites be applied to such ultimately-thin material? (2) continuum mechanics used traditionally still valid at atomic level? (3) how does matrix interact crystals and what kind theoretical...
Raman spectroscopy is now an extremely important technique for the analysis of carbon-based materials. It demonstrated how it can be used to give a unique insight into characterising many aspects microstructure these materials, including orientation, number layers, defects and doping, enabling standardisation quality control. Graphene, as building block all sp2 carbon materials main example understanding this material has facilitated nanotubes fibres. also shown that bands shift during...
Two-dimensional materials, such as graphene and molybdenum disulfide (MoS2), can greatly increase the performance of electrochemical energy storage devices because combination high surface area electrical conductivity. Here, we have investigated solution exfoliated MoS2 thin flexible membranes supercapacitor electrodes in a symmetrical coin cell arrangement using an aqueous electrolyte (Na2SO4). By adding highly conductive to form nanocomposite membranes, it was possible specific capacitance...
In the decade since first isolation and identification of graphene, scientific community is still finding ways to utilize its unique properties. The present review deals with preparation physicochemical characterization graphene-based elastomeric nanocomposites. processing graphene oxide are described in detail, presence such fillers an matrix affects dramatically properties nanocomposite samples. Several routes for efficient dispersion elastomers then discussed, while aspects as interfacial...
Electrically conductive composites comprising polymers and graphene are extremely versatile have a wide range of potential applications. The conductivity these depends on the choice polymer matrix, type filler, processing methodology, any post-production treatments. In this review, we discuss progress in graphene–polymer for electrical Graphene filler types reviewed, modelling is outlined, current optimal presented, example strain sensors used to demonstrate their application.
This in-depth review deals with the subject of how mechanical reinforcement takes place in polymer nanocomposites containing graphene and carbon nanotubes offers guidelines for maximization performance such systems.
The stress transfer between the internal layers of multilayer graphene within polymer-based nanocomposites has been investigated from stress-induced shifts 2D Raman band. This undertaken through study deformation an ideal composite system where flakes were placed upon surface a polymer beam and then coated with epoxy polymer. It is found that rate band shift per unit strain for monolayer flake virtually independent whether it one or two interfaces (i.e., without top coating). In contrast,...
A detailed study has been undertaken of the mechanisms stress transfer in polymeric matrices with different values Young's modulus, Em, reinforced by graphene nanoplatelets (GNPs). For each material, modulus filler, Ef, determined using rule mixtures and it is found to scale value Em. Additionally stress-induced Raman bands shifts for polymer show levels from matrix GNPs, which again theory developed predict stiffness bulk nanocomposites mechanics GNP reinforcement based upon shear-lag...
Conductive inks for the future printed electronics should have following merits: high conductivity, flexibility, low cost, and compatibility with wide range of substrates. However, state-of-the-art conductive based on metal nanoparticles are in cost poor flexibility. Herein, we reported a highly conductive, super flexible ink graphene nanoplatelets. The has been screen-printed plastic paper Combined postprinting treatments including thermal annealing compression rolling, pattern shows...
Conventional chemical oxidation routes for the production of graphene oxide (GO), such as Hummers’ method, suffer from environmental and safety issues due to their use hazardous explosive chemicals. These are addressed by electrochemical methods, but approaches typically have a low yield inhomogeneous oxidation. Herein we report two-step intercalation approach produce GO on large laboratory scale (tens grams) comprising (1) forming stage 1 graphite compound (GIC) in concentrated sulfuric...
Multi-walled carbon nanotubes, with a typical length of 140 μm and diameter 120 nm, have been used to modify an anhydride-cured epoxy polymer. The modulus, fracture energy the fatigue performance modified polymers investigated. Microscopy showed that these long nanotubes were agglomerated, increasing nanotube content increased severity agglomeration. addition modulus epoxy, but glass transition temperature was unaffected. measured also increased, from 133 223 J/m2 0.5 wt% nanotubes. resulted...