Materials Literature
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Graphene oxide (GO) and reduced graphene oxide (rGO) sheets have usually been synthesized through Hummers' method by using highly pure graphite (HPG) as the main starting material. However, HPG can be relatively expensive for mass production of high-quality graphene. In this work, a general method for synthesis of hig…
Synergistic combination of metal nanoparticles and graphene modulates electronic properties of graphene, leading to enhancement in gas sensitivity and selectivity.
The distinctive architecture of the PANI/3D graphene electrode enhances its supercapacitive performance (1024 F g <sup>¬1</sup> ), the lightweight and porous conducting foam provides “freeways” for fast charge transport.
Graphene oxide (GO) is an emerging material for surface-enhanced Raman scattering (SERS) due to its strong chemical enhancement. Studying the SERS performance of plasmonic nanoparticle/GO hybrid materials at the single particle level is crucial for direct probing of the chemical effect of GO on plasmonic nanoparticles…
Silver and gold nanoparticles were synthesized using an aqueous extract of the seaweed Turbinaria conoides and their antibiofilm activity against marine biofilm forming bacteria is reported here. The UV-Vis spectra showed the characteristics SPR absorption band for Ag NPs at 421 and for Au NPs at 538 nm. Further, the…
Fluorescence turn-on sensor based on nitrogen-doped graphene quantum dots can be used for glutathione detection in living cells.
Binder-free layered graphene/polyaniline composite supercapacitor film was prepared by an environmentally friendly route. It exhibited 384 F g <sup>−1</sup> at 0.5 A g <sup>−1</sup> and 84% capacitance retention over 1000 cycles.
Cu2O and CuO are attractive photocatalytic materials for water splitting due to their earth abundance and low cost. In this paper, we report the deposition of Cu2O and CuO thin films by a sol-gel spin-coating process. Sol-gel deposition has distinctive advantages such as low-cost solution processing and uniform film f…
A new method is introduced for the preparation of graphene/polyaniline hybrids using a one-step intercalation polymerization of aniline inside the expanded graphite. The structural and morphological characterizations were performed by X-ray diffraction analysis, transmission electron microscopy and field emission scan…
A carbon-bridge effect was adopted to explain the electromagnetic wave absorbing property related to the cross-linked framework structure of RGO–SCI composites.
Chitin is the most important natural polysaccharide after cellulose found in crustaceous shell or in cell walls of fungi. However, it is not widely used for industrial application up to now because it is insoluble in many solvents, relatively difficult to isolate from natural sources in pure from and to prepare in a r…
Calculated Mn <sup>4+</sup> emission energies for various oxides as functions of Mn–O bond length. The experimental values are shown (in red) wherever available. There are three groups of materials: the ones with small O–Mn–O bond angle distortion (black squares), the ones with large O–Mn–O bond angle distortion (blue…
Scheelite related alkali-metal rare-earth double molybdate compounds with a general formula of ALn(MoO4)2 can find wide application as red phosphors. The crystal chemistry and luminescence properties of red-emitting CsGd1-xEux(MoO4)2 solid-solution phosphors have been evaluated in the present paper. A detailed analysi…
This paper describes a sequential doping/dedoping method for the enhancement of thermoelectric properties of organic semiconductor that also permits the fabrication of transparent and flexible thermoelectric nanofilms. This method allows a precise control of oxidation level without deterioration of the film surface de…
We report that non-contact self-referencing temperature sensors can be realized with the use of core-shell nanostructures. These lanthanide-based nanothermometers (NaGdF4:Yb(3+)/Tm(3+)@Tb(3+)/Eu(3+)) exhibit higher sensitivity in a wide range from 125 to 300 K based on two emissions of Tb(3+) at 545 nm and Eu(3+) at 6…
We have demonstrated that the electrical property of single-layer molybdenum disulfide (MoS2) can be significantly tuned from the semiconducting to the insulating regime via controlled exposure to oxygen plasma. The mobility, on-current and resistance of single-layer MoS2 devices were varied by up to four orders of ma…
The ability to control the appropriate layer thickness of transition metal dichalcogenides (TMDs) affords the opportunity to engineer many properties for a variety of applications in possible technological fields. Here we demonstrate that band-gap and mobility of ReSe2 nanosheet, a new member of the TMDs, increase whe…
Metamaterials are being applied to the development and construction of many new devices throughout the electromagnetic spectrum. Limitations posed by the metamaterial operational bandwidth and losses can be effectively mitigated through the incorporation of tunable elements into the metamaterial devices. There are a w…
Copper nanoparticles were synthesized by thermal decomposition using copper chloride, sodium oleate, and phenyl ether as solvent agents. The formation of nanoparticles was evidenced by the X‐ray diffraction and transmission electron microscopy. The peaks in the XRD pattern correspond to the standard values of the face…
Article Cellulose nanofibrils: Challenges and possibilities as a paper additive or coating material – A review was published on January 1, 2014 in the journal Nordic Pulp & Paper Research Journal (volume 29, issue 1).