Microwave absorption materials with high reflection loss (RL), thin thickness and wide absorption bandwidth have attached a lot of attention for overcoming microwave pollution. Nanocomposites composed of carbon-based materials and metal sulfide have excellent microwave absorption properties, which meet the high RL of low weight microwave absorbing materials. In this study, binary nanocomposites of

Non-precious and Earth-abundant cocatalysts have emerged as promising alternatives to precious metal catalysts for hydrogen generation from photocatalytic water splitting. In this work, CoNi/g-C3N4 photocatalyst composed of g-C3N4 nanosheets and CoNi alloyed nanoparticles was prepared by a simple solvothermal and chemical reduction method. Bimetallic CoNi alloy was found to accelerate charge transfer

In this work, a method for preparing solid polymer electrolytes with function of single ion conduction (SICs-SPEs) is developed and reported. A solid state ionic conduction path with three-dimensional interpenetrating network was constructed by multi-nozzle electrospinning technology and a followed hot pressed treatment. Here, two components of SICs-SPEs were chosen where one component is a single

ZnO is a versatile photocatalytic material, yet it needed further modifications to explore it on the commercial scale. In the present study, photoactive Li doped ZnO nano-materials with different Li content were synthesized by adopting a facile low-temperature solution combustion approach. Li was introduced to improve ZnO characteristics correspond to photocatalytic efficiency. The effect of lithium

ZnO:Tb nanoparticles are prepared by a solvothermal method with the diameter of approximately 18-100 nm. At appropriate doping concentration, the lattice expansion occurs. With the increase in the doping ratio of Tb/Zn from 0 to 0.03, ZnO lattice first contracts slightly, then expands, and finally, contracts again. Tb3+ element is found to enter the ZnO lattice and replace Zn2+. Some crystal defects

The catalytic decomposition of ammonium perchlorate (AP) by magnesium oxide (MgO) nanoflakes (NFs) with hexagonal and quasi-circular structures was investigated. MgO NFs were synthesized by hydrothermal process and characterized by TEM, FESEM, XRD and BET. Catalytic activities of MgO NFs were researched via TG-DSC analysis. After MgO NFs were added to AP, the temperature of AP decomposition rose in

A recycled commercial glass sample doped small amounts of cobalt to give blue glass. A change in its color upon being exposed to gamma-radiation according to the irradiation doses has been identified. The effect of irradiation on the optical, thermal and electrical properties of the glass is studied. The optical, properties of the irradiated glasses vary significantly from those of the unirradiated

Layered tin-based SnS2, Sn(S0.5Se0.5)2, and SnSe2 dichalcogenide semiconductors were synthesized using high-energy ball milling. Structural analyses revealed anisotropic nanostructures with the 2H-polytype. The extended milling time produced nanocrystallites due to the high density of defects and texture indexes. A significant microstrain reduction was achieved by replacing the 1d site with heavier

By performing first-principle transport calculations, we propose that lateral heterostructures of zigzag phosphorene nanoribbons (ZPNRs) with the different passivated edges, can represent a powerful platform for the high performance field-effect transistors (FETs). The ZPNR with H-passivated edge is a semiconductor with a band gap of 1.39 eV. However, the ZPNRs with zigzag edges and cliff edges all

Mn2NiGa1-xCrx (x = 0–0.5) alloys were synthesized successfully to explore possible Cr-based all-d-metal Heusler alloys with magnetic shape memory effects. When x = 0–0.25, Mn2NiGa1-xCrx are single BCC Heusler phase, but when x = 0.375 some FCC phase co-exists with the main Heusler phase, finally a pure FCC phase is formed in Mn2NiGa0.5Cr0.5. In BCC Mn2NiGa1-xCrx, Cr-doping leads to the decrease of

Bi0·.5Na0·.5TiO3 (BNT)-based lead-free dielectric materials have attracted extensive research in environment-friendly ferroelectrics due to their high dielectric constant and negligible remanent polarisation. In accordance with previous reports, although BNT-based ceramics obtain large recoverable energy storage density (Wrec > 3 J/cm3), they are commonly accompanied with high dielectric breakdown

Fabricating a low Schottky barrier is still a great challenge in electrical transport behavior of nano field effect transistors (FETs). To settle this problem, the electronic properties and Schottky contact of the graphene/MoSe2 heterojunction employing various vertical strains and external electrical fields are investigated with density functional theory (DFT) to obtain low Schottky barrier. Our calculation

A four-state BEG model is constructed to investigate effects of electric dipole of solvent molecule and ion valency on differential capacitance Cd and energy storage Eof the supercapacitor based on electrical double layer inside an ultranano-cylindrical pore about the size of the ions and solvent. In the model, existence of voids is permitted, solvent molecule is modelled as neutral hard sphere with

The development of lithium-ion batteries is hindered by the lack of appropriate low-cost cathode materials with high performance. Here, the preparation of Cu-coated Li3V2(PO4)3/C (x% Cu-LVPC) composites is reported via a chemical precipitation and self-reduction method. With an optimized Cu coating content of 2.0 wt%, the 2.0% Cu-LVPC composite displays the best electrochemical properties. The initial

We present a simple methodology to construct novel Co-Pi decorated TiO2/Bi4Ti3O12 nanorod (TiO2/BTO@Co-Pi NR) arrays as photoanode for enhanced water splitting. By using successive ionic layer adsorption and reaction (SILAR) method, controllable amounts of BiOI nanoplates were uniformly immobilized on the hydrothermal grown TiO2 NR arrays on Fluorine-doped tin oxide (FTO) substrate. TiO2/BTO NR heterojunction

Currently available models for the conductivity of nanocomposites commonly disregard the roles of interphase and tunneling sections. Here, the interphase and tunneling parts are considered to yield an expanded Takayanagi equation to express a model for the electrical conductivity of carbon nanotubes (CNTs)-reinforced polymer nanocomposites (PCNTs). Invoking the interphase section, the operative filler

In this paper, La is partial substituted for Ti to improving the hydrogen storage performance of TiFe alloy. The Ti1-xLaxFe0.8Mn0.2 (x = 0, 0.01, 0.03, 0.06, 0.09) alloys were prepared by induction melting under vacuum. The influences of La on the microstructure, gaseous hydrogen absorption and thermodynamics were investigated. It was found from the X-ray diffraction results that all the alloys contained

Density functional theory (DFT) based ab-initio calculations of electronic, phononic and superconducting properties of 1T − MoS2 are reported. The phonon dispersions are computed within density-functional-perturbation-theory (DFPT). We have also computed Eliashberg function α2F(ω) and electron-phonon coupling constant λ from the same. The superconducting transition temperature (Tc) computed within

To achieve broadband negative refraction, which is useful for many practical applications, recent studies have shown that the use of hybridization is one of the most effective methods. Nevertheless, reported studies often propose changing structural parameters rather than external factors. In this article, a method to control actively the bandwidth of negative refractive index (NRI) metamaterials based

We have investigated the magnetic field effect on the current in bulk heterojunction polymer solar cells made of blends of an anthracene-containing poly(arylene-ethynylene)-alt-poly (arylene-vinylene) (AnE-PVstat) and fullerene molecules prepared in various ratios (1:1, 1:2, 1:3 and 1:4) and different applied voltages ranging from 0.7 to 0.95 V in steps of 0.05 V. The efficiencies and fill factors

The morphology of additives has strong effects on the tribological performance of lubricant. In this work, molybdenum disulfide (MoS2) nanowires (NWs) prepared by electrospinning method are used as an additive in perfluoropolyether (PFPE) base oil for the first time. The influence of MoS2 NWs on the tribological properties of PFPE oil is evaluated using a four-ball tester. The results show that PFPE

The effects of adding silicon dioxide (SiO2) nanowires on the properties of barium titanate (BaTiO3) were investigated. The structure, morphology and optical properties were examined using X-ray powder diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and ultraviolet–visible diffuse reflectance spectrophotometry (DR). All of the prepared samples crystallized

The simple structure and processing, low fabrication cost and high stability of the hole transport material (HTM)-free perovskite solar cells (PSCs) have great importance nowadays. In this study, an efficient and novel HTM-free PSC structure where CH3NH3Pb(I1-xClx)3/FA0.75Cs0.25Pb0.5Sn0.5I3 (where FA is formamidinium) acts as a light harvester, WS2 acts as an electron transport material (ETM) and carbon

During recent decades the rapid growth of wireless communications technologies has resulted in developing new dielectric ceramics for different applications. Materials for the microwave dielectric resonators have to meet three main requirements: controllable permittivity value for possible device miniaturization or fast signal transmission, high quality factor (low dielectric loss) for frequency selectivity

FeSe1−xSx single crystals with the sulfur content covering the full range (0 ≤ x ≤ 1) have been successfully synthesized through K0.8Fe2Se2−xSx single crystals as matrix via the controllable and stable hydrothermal ion release method. The lattice parameter c shows monotonically decrease with the increasing sulfur doping content from 5.53 Å for FeSe to 5.03 Å for FeS. The superconducting Tc shows a

Trilayered, Ising, spin-1/2, ferrimagnets are interesting subjects for simulational studies for they show compensation effect. A Monte Carlo study on such a system with sublayers on a triangular lattice is performed in the current work. Three layers, making up the bulk, is formed completely by either A or B type of atoms. The interactions between like atoms (A-A; B-B) are ferromagnetic and between

Single crystals of Ba2Nb3S8I have been grown using iodine-vapor transport in fused-quartz tubes. The crystals form as flakes with typical areas of 5–10 mm2 and thicknesses of 5–11 μm. The crystal structure was determined using single-crystal x-ray diffraction with the aid of an APEX II CCD diffractometer. The structure shows trigonal symmetry with space group P31c and lattice parameters a = b = 10