Abstract:
A method for forming a magnetic hydrochar nanocomposite includes the step of adding basically treated desert date seeds into a vessel containing phosphoric acid and mixing the basically treated desert date seeds with the phosphoric acid to form a mixture. The mixture is transferred to a microwave and heated to 150° C. The mixture is held at this temperature for one hour to form a hydrochar. The magnetic hydrochar nanocomposite is further formed by dissolving ferrous sulphate and ferric chloride to form magnetic nanoparticles. The magnetic nanoparticles are mixed with the hydrochar, then date fruit extract is mixed with the magnetic nanoparticles and hydrochar mixture to form a resultant mixture. The pH of the resultant mixture is raised to 9-11 by adding sodium hydroxide to form a basic resultant mixture. The basic resultant mixture is heated in a microwave to 150° C. for 30 minutes to form the magnetic hydrochar nanocomposite.
Abstract:
The perovskite solar cell (PSC) includes a first layer containing a conducting material coated glass plate as a substrate, a second layer containing copper doped nickel oxide, a third layer containing a perovskite, a fourth layer containing nitrogen (N)-doped graphene quantum dots, a fifth layer containing phenyl-C61-butyric acid methyl ester and a top layer including conductive layer. A method for producing the perovskite solar cell is also discussed.
Abstract:
Discrete, individualized carbon nanotubes having targeted, or selective, oxidation levels and/or content on the interior and exterior of the tube walls are claimed. Such carbon nanotubes can have little to no inner tube surface oxidation, or differing amounts and/or types of oxidation between the tubes' inner and outer surfaces. These new discrete carbon nanotubes are useful in plasticizers, which can then be used as an additive in compounding and formulation of elastomeric, thermoplastic and thermoset composite for improvement of mechanical, electrical and thermal properties.
Abstract:
Photosensitive molecular switch, having a chelate ligand, a metal ion bonded coordinatively to the chelate ligand, the metal ion being selected from the group of metal ions consisting of Mn2+, Mn3+, Fe2+, Fe3+, Co2+ and Ni2+, a photochromic system which is bonded covalently to the chelate ligand and can be isomerized by irradiation, this system being bonded coordinatively to the metal ion in one configuration and not bonded to the metal ion in the other configuration.
Abstract:
A material for use in a magnetic resonance system includes a carrier material and a doping material. The carrier material and the doping material are admixed in a specific proportion. A volume of the material smaller than 1 mm2 contains a substantially homogeneous intermixing of the carrier material and the doping material.
Abstract:
There are provided a rare-earth permanent magnet and a manufacturing method thereof capable of preventing deterioration of magnet properties. In the method, magnet material is milled into magnet powder. Next, a mixture is prepared by mixing the magnet powder and a binder made of long-chain hydrocarbon and/or of a polymer or a copolymer consisting of monomers having no oxygen atoms. Next, the mixture is formed into a sheet-like shape so as to obtain a green sheet. After that, the green sheet is held for a predetermined length of time at binder decomposition temperature in a non-oxidizing atmosphere so as to remove the binder by causing depolymerization reaction or the like to the binder, which turns into monomer. The green sheet from which the binder has been removed is sintered by raising temperature up to sintering temperature. Thereby a permanent magnet 1 is obtained.
Abstract:
In a method for synthesizing polymeric microstructures, a monomer stream is flowed, at a selected flow rate, through a fluidic channel. At least one shaped pulse of illumination is projected to the monomer stream, defining in the monomer stream a shape of at least one microstructure corresponding to the illumination pulse shape while polymerizing that microstructure shape in the monomer stream by the illumination pulse. An article of manufacture includes a non-spheroidal polymeric microstructure that has a plurality of distinct material regions.
Abstract:
Hydro-carbon nanorings may be used in storage. Sufficiently cooled, an externally hydrogen doped carbon nanoring may be used to create a radial dipole field to contain streams of electrons. Similarly, an internally hydrogen doped carbon nanoring may be used to create a radial dipole field to contain streams of positrons. When matched streams of positrons and electrons are sufficiently compressed they may form Cooper pairs with magnetic moments aligned to the movement of the stream. Matched adjacent Cooper pairs of electrons and positrons may contain information within their magnetic moments, and as such, may transmit and store information with little or no energy loss. Information may be similarly encoded in magnetic moments of spins of pairs of positrons and electrons, not in the form of Cooper pairs.
Abstract:
An organic-based magnet is formed by molecular layer deposition (MLD) of a first compound and MLD of a second compound. The first or second compound containing a metal-containing compound. The first and second compounds being reactive with each other to form a first layer organic-based magnet. A laminate composite includes a first monolayer including a metal bonded to a magnet forming organic compound. A second monolayer may be in direct contact with the first monolayer. One of the first monolayer and the second monolayer having an induced magnetization when exposed to a magnetic field. A device includes the laminate composite and a nonmagnetic film thereon. A method of making an organic magnet on a substrate in a vacuum chamber includes depositing a first layer of metal-containing compound on the substrate by MLD.
Abstract:
The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 μm and a particle diameter ×90 of 4.3 to 5.4 μm wherein the ×90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.