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Revolutionizing Medical Imaging and Beyond: A Leap in Photon Detection Technology (The Graphene Council)
Researchers at Chanda have achieved a groundbreaking development in photon detection, promising to revolutionize various fields. This novel method, which uses a unique phase-change material (PCM) to modulate the frequency of an oscillating circuit, enables ultra-sensitive photon detection. When exposed to light, the PCM changes form
Nanoporous Graphene in Battery Research (AZoNano)
Nanostructured materials have been a particularly promising area of battery research, particularly with respect to electrode materials research. Having the thickness of a single atom, graphene is a carbon material with excellent electrical conductivity, and it is a promising material for battery research.
'Flash Graphene' Made from Trash Could Reduce Manufacturing Costs (Tech Briefs)
Researchers from Rice University introduce an Earth-friendly method that can turn bulk amounts of almost any material containing carbon content into valuable graphene flakes. The flash graphene technique can convert a ton of coal, food waste, plastic waste, or wood clippings into graphene for a fraction of the cost used by other bulk graphene-producing methods
Influential adsorption of Congo red using vermiculite/graphene/polyacrylamide composite (Materials Chemistry and Physics)
In aquatic ecosystems, Congo red (CR) dye contamination frequently threatens human health and the aquatic system. In the present research, vermiculite (V)/graphene (G) and polyacrylamide (PA) composite was synthesized as an influential adsorbent for CR dye adsorption from aqueous systems.
Three-dimensional graphene-polypyrrole hydrogel as cathode for a bioelectric Mg-air battery (Materials Letters)
A bioelectric Mg-air battery offers a promising solution for powering implantable medical devices due to obvious merits such as easy miniaturization and ease of battery package. One of the key challenges in bioelectric battery is to seek air cathode materials with both satisfied electrocatalytic activity and good biocompatibility.
The evolution of penta-graphene thermoelectrics: External fields as a key enabler for High-Performance devices (Materials Science and Engineering: B)
The tight-binding model is used in this study to examine the electronic and thermal properties of penta-Graphene (PG). To analyze these properties, approaches including the Kubo formula, linear response theory, and Green's function method are applied. The obtained numerical results show that by introducing bias voltage U,
High density electron doping in boron-doped twisted bilayer graphene: a ladder to extended flat-band (Materials Horizons)
Realizing Von Hove singularity (VHS) and extended flat bands of graphene near the Fermi level (EF) is of great significance to explore many-body interactions, with a high tendency towards superconductivity. In this study, we report that the VHS of * bands near EF can be realized by high-density lithium intercalation in p-type doped twisted bilayer graphene (tBLG).
The microstructure evolution of graphene in nanoindentation G/WC-Co based on molecular dynamics simulation (Diamond and Related Materials)
In this paper, nanoindentation processes of graphene nanocoating reinforced cemented carbide (G/WC-Co) is simulated using molecular dynamics method, from which the effect of the relative position of the indenter and Co on the mechanical properties of G/WC-Co is investigated.
Wear resistance mechanism of graphene/copper composite foils with bimodal structure (Materials Characterization)
Copper foils have a wide range of applications in modern industry. However, their wider utilization is restricted by the poor wear resistance of pure copper. Therefore, improving the abrasion resistance of copper foils is essential for their application in various scenarios.
Magnetic field dependent thermal conductivity investigation of water based Fe3O4/CNT and Fe3O4/graphene magnetic hybrid nanofluids using a Helmholtz coil system setup (Diamond and Related Materials)
Magnetic hybrid nanofluids are making a name of themselves in mainstream application areas such as heat transfer, solar systems, acoustic applications, etc. These nanofluids are highly favorable as their ability to advance the properties of their constituent particles such as their thermophysical properties.
Synthesis of nanoscale LiCoPO4/C between few-layer graphene and its influence on electrochemical performance for lithium-ion batteries (Journal of Alloys and Compounds)
In this study, the composite cathode material of LiCoPO4/C and graphene is synthesized using solvothermal method assisted by oleylamine. The effect of graphene addition on the material properties is fully investigated, and the synergistic effect of amorphous carbon and graphene is also studied.
Fluorinated photoreduced graphene oxide with semi-ionic CF bonds: An effective carbon based photocatalyst for the removal of volatile organic compounds (Chemosphere)
There is much interest in developing metal-free halogenated graphene such as fluorinated graphene for various catalytic applications. In this work, a fluorine-doped graphene oxide photocatalyst was investigated for photocatalytic oxidation (PCO) of a volatile organic compound (VOC), namely gaseous methanol.
Adsorption of water, hydrogen and oxygen on graphene/Pt(111) surfaces: 2D graphene cover effect studied by temperature programmed desorption (Surfaces and Interfaces)
Understanding the interaction between reactive gas and graphene overlayers on metal substrates is prerequisite to study the surface reactions confined at the interfaces between graphene cover and metal surfaces. Here, we report H2O, H2 and O2 adsorption on graphene overlayer covered Pt(111) surfaces by using temperature programmed desorption (TPD).
Highly Sensitive and Selective Chemirestive Sensor for Detection of Carbon Monoxide based on Iron substituted Octaethylporphyrin Functionalized Reduced Graphene Oxide (Chemical Physics)
Herein, we report an ultrasensitive and selective carbon monoxide (CO) chemiresistive sensor based on iron-octaethylporphyrin (FeOEP)-functionalized reduced graphene oxide (rGO) (rGO/FeOEP). The graphene oxide (GO) was synthesized using Hummers improved method and reduced thermally to obtain rGO, which was drop-cast onto copper electrodes on a glass substrate.
Multifunctional ZnO/graphene co-coating on LiNi0.5Co0.2Mn0.3O2 cathode material for improving high voltage electrochemical performances (Ceramics International)
Layered nickel-rich LiNixCoyMn1-x-yO2 (NCM, x 0.5) is considered a promising cathode material for lithium-ion batteries (LIBs) with high energy density. However, the cycling stability and rate capability of the material degrades due to lattice distortion and phase change upon operating at high voltage.
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