Abstract:
Die vorliegende Erfindung betrifft Pigmente basierend auf Bismut-Verbindungen sowie deren Verwendung, vorzugsweise als laserabsorbierendes Additiv, sowie ein Verfahren für deren Herstellung.
Abstract:
The invention relates to a method for preparing a composition of metal oxide nanocrystals from at least one organometallic precursor in an aprotic solvent in the presence of at least one PEG ligand including a carbon chain having: at least one end functionalized by a coordinating group containing at least one heteroatom, and at least one [-OCH2CH2]n group, such that it is soluble in both the aprotic solvent medium and in water. The invention also relates to the resulting water-compatible and organo-compatible composition of metal oxide nanocrystals.
Abstract:
The present invention is related to a secondary battery comprising: (a) primary granules of a metalloid oxide alloyable with lithium; and (b) secondary granules of an oxide containing the same metalloid as that of (a) as well as lithium, and to a secondary battery including such an electrode active material. When the electrode active material according to the present invention is used as an anode active material, reduced amounts of an irreversible phase such as a lithium oxide or a lithium metal oxide are produced during an initial charge-discharge of a battery since lithium is already contained in the secondary granules before the initial charge-discharge of a battery, and thus a dead volume on the side of a cathode can be minimized and a high-capacity battery can be fabricated.
Abstract:
A thermal dissolution catalysis method for preparing liquid fuel from lignite and the catalyst and the solvent suitable for the method. The method comprises the following steps: 1) crushing and drying lignite into coal powder; 2) mixing 30-40% mass of coal powder, 60-70% mass of solvent and 0.5-1% mass of catalyst (based on coal powder) enough to form coal slurry; 3) reacting coal slurry to obtain thermal dissolution liquefied product at 390-450? and 5.0-9.0 MPa for 30-60 minutes; 4) separating the thermal dissolution liquefied product into gas, liquid and solid phases; and 5) upgrading the liquid product into liquid fuel.
Abstract:
Nanocrystalline forms of metal oxides, including binary metal oxide, perovskite type metal oxides, and complex metal oxides, including doped metal oxides, are provided. Methods of preparation of the nanocrystals are also provided. The nanocrystals, including uncapped and uncoated metal oxide nanocrystals, can be dispersed in a liquid to provide dispersions that are stable and do not precipitate over a period of time ranging from hours to months. Methods of preparation of the dispersions, and methods of use of the dispersions in forming films, are likewise provided. The films can include an organic, inorganic, or mixed organic/inorganic matrix. The films can be substantially free of all organic materials. The films can be used as coatings, or can be used as dielectric layers in a variety of electronics applications, for example as a dielectric material for an ultracapacitor, which can include a mesoporous material.
Abstract:
The present invention relates to bismuth oxyfluoride nanocomposites used as positive electrodes in primary and rechargeable electromechanical energy storage systems.
Abstract:
In preferred embodiments, metal nanoparticles, mixed-metal (alloy) nanoparticles, metal oxide nanoparticles and mixed-metal oxide nanoparticles are provided. According to embodiments, the nanoparticles may possess narrow size distributions and high purities. In certain preferred embodiments, methods of preparing metal nanoparticles, mixed-metal nanoparticles, metal oxide nanoparticles and mixed-metal nanoparticles are provided. These methods may provide tight control of particle size, size distribution, and oxidation state. Other preferred embodiments relate to a precursor material that may be used to form nanoparticles. In addition, products prepared from such nanoparticles are disclosed.