A facile synthesis of a novel mesoporous Ge@C sphere anode with stable and high capacity for lithium ion batteries
A facial synthesis of mesoporous Ge@C spheres as a stable and high capacity anode for lithium ion batteries is described.
Materials Literature
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Synthesis mechanism and gas-sensing application of nanosheet-assembled tungsten oxide microspheres
Nanosheet-assembled tungsten oxide microspheres have been synthesized using rapid sonochemistry followed by thermal treatment. Transient observation of controllable synthesis reveals that the morphological evolution of the product is highly dependent on the ultrasonication time. An assembly mechanism based on oriented…
Influence of moisture on the preparation, crystal structure, and photophysical properties of organohalide perovskites
The effect of preparing lead-based organohalide perovskites under inert conditions has been investigated. We find that when prepared under anhydrous conditions, only poorly crystalline powders were obtained. On exposure to small amounts of moisture a rapid crystallization into the expected cubic unit cell for CH3NH3Pb…
Synthesis of Hydroxyapatite from Oyster Shell via Precipitation
In this work, oyster shell which predominantly composed of calcium carbonate, was used as a staring material for synthesizing hydroxyapatite powder. By calcinating the oyster shell powder at 1200 °C for 2 h, the pure calcium oxide characterized by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FT-…
Investigation of Physical Properties of Graphene-Cement Composite for Structural Applications
The hydration of cement generates heat due to the exothermic nature of the hydration process. Poor heat dissipation in mass concrete results in a temperature gradient between the inner core and the outer surface of the element. High temperature gradients generate tensile stresses that may exceed the tensile strength o…
Organo-metal halide perovskite-based solar cells with CuSCN as the inorganic hole selective contact
The viability of using solution-processed CuSCN films as inorganic hole selective contacts in perovskite solar cells is demonstrated, by reaching a power conversion efficiency of 6.4% in planar heterojunction-based devices.
Drug Delivery Nanoparticles in Skin Cancers
Nanotechnology involves the engineering of functional systems at nanoscale, thus being attractive for disciplines ranging from materials science to biomedicine. One of the most active research areas of the nanotechnology is nanomedicine, which applies nanotechnology to highly specific medical interventions for prevent…
An Overview of Equivalent Circuit Modeling Techniques of Frequency Selective Surfaces and Metasurfaces
Circuit analysis of frequency selective surfaces is reviewed with the aim to underline range of validity of different models and their advantages in terms of simplicity and physical insight. The circuit approach is based on an equivalent representation of the FSSs with series or shunt connections of inductances and ca…
Highly efficient reusable catalyst based on silicon nanowire arrays decorated with copper nanoparticles
Non-noble metal copper (Cu) nanoparticles (NPs) with controlled size and surface coverage are decorated on silicon nanowire arrays (SiNWAs) by a simple galvanic displacement reaction. Using the combined efforts of all these approaches, SiNWAs-supported Cu NPs (SiNWAs–Cu) exhibit excellent and stable activity for the c…
Zirconium–Beta zeolite as a robust catalyst for the transformation of levulinic acid to γ-valerolactone via Meerwein–Ponndorf–Verley reduction
Zr–Beta zeolite is a robust and active catalyst for the Meerwein–Ponndorf–Verley reduction of levulinic acid to γ-valerolactone, a versatile intermediate for bio-fuels and chemicals.
Direct large-scale synthesis of 3D hierarchical mesoporous NiO microspheres as high-performance anode materials for lithium ion batteries
Hierarchically porous materials are an ideal material platform for constructing high performance Li-ion batteries (LIBs), offering great advantages such as large contact area between the electrode and the electrolyte, fast and flexible transport pathways for the electrolyte ions and the space for buffering the strain…
Photochemical synthesis of ZnO/Ag 2 O heterostructures with enhanced ultraviolet and visible photocatalytic activity
ZnO/Ag 2 O heterostructures were successfully synthesized via a simple one-step photochemical route.
A Multilayer Circular Polarizer Based on Bisected Split-Ring Frequency Selective Surfaces
This letter presents a circular polarizer using a multilayer frequency selective surface based on split rings bisected by a metal strip. This geometry provides the advantages of both low cross-polarization level and low sensibility with respect to the incidence angle of the ring-based topology. To validate the propose…
Synthesis and characterization of tin oxide nanoparticles via the Co-precipitation method
The present study illustrates the characteristics and co-precipitation method for synthesis of tin oxide nanoparticles. The tin oxide nanoparticles were produced using tin chloride, Triton X-100 and ammonia precipitators. Structure, size and surface morphology of the tin oxide was studied by X-ray diffraction (XRD), F…
Electrochemical characteristics of nanostructured platinum electrodes – a cyclic voltammetry study
Platinum surfaces play a decisive role in catalysis in sensors, fuel cells, solar cells and other applications like neuronal stimulation and recording. Technical advances in nanotechnology contributed tremendously to the progress in these fields. A fundamental understanding of the chemical and physical interactions be…
Nitrogen-enriched electrospun porous carbon nanofiber networks as high-performance free-standing electrode materials
Nitrogen-enriched electrospun carbon nanofiber networks were prepared to use as a free-standing LIB anode material with ultrahigh capacity and good rate capability.
Trianionic pincer and pincer-type metal complexes and catalysts
Trianionic pincer and pincer-type ligands are the focus of this review. Metal ions from across the periodic table, from main group elements, transition metals, and the rare earths, are combined with trianionic pincer ligands to produce some of the most interesting complexes to appear in the literature over the past de…
SPH Fluids in Computer Graphics
Smoothed Particle Hydrodynamics (SPH) has been established as one of the major concepts for fluid animation in computer graphics. While SPH initially gained popularity for interactive free-surface scenarios, it has emerged to be a fully fledged technique for state-of-the-art fluid animation with versatile effects. Now…
Solution-processed copper–nickel nanowire anodes for organic solar cells
This work describes a process to make anodes for organic solar cells from copper-nickel nanowires with solution-phase processing. Copper nanowire films were coated from solution onto glass and made conductive by dipping them in acetic acid. Acetic acid removes the passivating oxide from the surface of copper nanowires…
Stimuli-responsive blue fluorescent supramolecular polymers based on a pillar[5]arene tetramer
A tetraphenylethene-bridged pillarene tetramer with aggregation-induced emission properties forms an A4/B2-type supramolecular polymer and a gel with a symmetric neutral guest linker, showing a remarkable fluorescence emission enhancement in solution and the solid state and a good responsiveness to temperature and sol…