专利号:US-11306002-B2 优先权日:2017-03-07 标题:Process for synthesis of MG2SI/MGO nanocomposites 发明人:KINGE SACHIN; ELSAESSER MICHAEL S; BERGER RAPHAEL; HAYATI-ROODBARI NASTARAN 权利人:TOYOTA MOTOR EUROPE; UNIV SALZBURG 摘要:The present invention relates to a process for the synthesis of a composite material comprising steps of:(a) reacting gaseous magnesium (Mg) and silica (SiO2) in an inert atmosphere;(b) washing the product obtained in step (a) in an acidic medium; and(c) reacting further gaseous magnesium (Mg) with the silica (SiO2) and silicon (Si) product obtained in step (b).The process of the invention allows Mg2Si/MgO nanocomposites to be prepared without too many separate steps, and wherein the MgO phase is homogeneously dispersed within the Mg2Si matrix. The nanocomposites obtained may for example find practical application as thermoelectric materials in thermoelectric generators.
专利号:US-2024097109-A1 优先权日:2021-02-11 标 题:Bottom-Up, Scalable Synthesis Of Oxide-Based Sub-Nano And Nanofilaments And Nanofilament-Based Two-Dimensional Flakes And Mesoporous Powders 发明人:BARSOUM MICHEL W; BADR HUSSEIN OSAMA 权利人:UNIV DREXEL 摘要:Provided are methods to convert—through a bottom-up approach—binary and ternary titanium carbides, nitrides, borides, phosphides, aluminides, and silicides into lepidocrocitic nanofilaments that in some cases self-assemble into 2D flakes by immersing them in a quaternary ammonium solution at moderate temperatures. The resulting flakes can comprise nanofilaments in cross-section, some of which nanofilaments can be few microns long in some instances.
专利号:US-8591758-B2 优先权日:2010-06-23 标题:Mechanochemical synthesis and thermoelectric properties of magnesium silicide and related alloys 发明人:FLEURIAL JEAN-PIERRE; BUX SABAH K; KANER RICHARD B 权利人:FLEURIAL JEAN-PIERRE; BUX SABAH K; KANER RICHARD B; CALIFORNIA INST OF TECHN 摘要:The present invention provides a method of making a substantially phase pure compound including a cation and an anion. The compound is made by mixing in a ball-milling device a first amount of the anion with a first amount of the cation that is less than the stoichiometric amount of the cation, so that substantially all of the first amount of the cation is consumed. The compound is further made by mixing in a ball-milling device a second amount of the cation that is less than the stoichiometric amount of the cation with the mixture remaining in the device. The mixing is continued until substantially all of the second amount of the cation and any unreacted portion of anion X are consumed to afford the substantially phase pure compound.
专利号:WO-2022174264-A1 优先权日:2021-02-11 标题:Bottom-up, scalable synthesis of oxide-based sub-nano and nanofilaments and nanofilament-based two-dimensional flakes and mesoporous powders 发明人:BADR HUSSEIN O; BARSOUM MICHEL W 权利人:UNIV DREXEL 摘要:Provided are methods to convert - through a bottom-up approach – binary and ternary titanium carbides, nitrides, borides, phosphides, aluminides, and silicides into nanofilaments that in some cases self-assemble into 2D flakes by immersing them in a quaternary ammonium solution at moderate temperatures. The resulting flakes can be C-containing anatase-based layers that are in turn comprised of nanofilaments in cross-section, some of which nanofilaments can be few microns long in some instances. Electrodes made from these materials performed well in energy systems. The materials also reduce the viability of some cancer cells. Also provided are mesoporous materials, devices, and related methods.
专利号:US-5110768-A 优先权日:1991-01-28 标题:Rapid solid-state synthesis of refractory materials 发明人:KANER RICHARD B; BONNEAU PHILIPPE R; GILLAN EDWARD G; WILEY JOHN B; JARVIS JR ROBERT F; TREECE RANDE 权利人:KANER RICHARD B; BONNEAU PHILIPPE R; GILLAN EDWARD G; WILEY JOHN B; JARVIS JR ROBERT F; TREECE RANDE 摘要:A process for producing a refractory material having the form TB o , e.g. zirconium nitride (ZrN), includes a first step of mixing a first salt having the form TX n , e.g. zirconium tetrachloride (ZrCl 4 ) and a second salt having the form A m B, e.g. lithium nitride (Li 3 N) in a ratio of n/m in a container. The process also includes a second step of igniting the mixture of the first and second salts, e.g. ZrCl 4 and Li 3 N, whereby the refractory material, e.g. ZrN, is produced along with byproducts having forms nAX and (n/m-o)B, e.g. 4LiCl and (1/6)N 2 , respectively. The process further includes a third step of separating the refractory material from the byproducts by solvent extraction. The stoichiometric ratio of the second salt to the first salt is n/m, e.g. 4/3. T is selected from the group consisting of transition metals, e.g. zirconium, and tetrelides, i.e. carbon, silicon, germanium, tin and lead. X is selected from the halide group consisting of fluorine, chlorine, bromine and iodine. A is selected from the group consisting of alkali metals, i.e. lithium, sodium, potassium, rubidium and cesium, and alkaline earth metals, i.e. beryllium, magnesium, calcium, strontium and barium. B is a base selected from the group consisting of pnictides, i.e. nitrogen, hosphorus, arsenic, antimony and bismuth, and tetrelides, i.e. carbon, silicon, germanium, tin and lead, m and n are integers and o is a fraction, e.g. 3/3=1.
专利号:US-8575381-B2 优先权日:2010-09-17 标题:Trihydridosilyl-terminated polysilanes and methods of preparation 发明人:ARKLES BARRY C; PAN YOULIN; LARSON GERALD L 权利人:ARKLES BARRY C; PAN YOULIN; LARSON GERALD L; GELEST TECHNOLOGIES INC 摘要:Novel trihydridosilyl-terminated polysilanes and methods for their synthesis, which are applicable to other polysilanes, are provided. The synthetic methods provide for facile preparation of products with minimal handling of pyrophoric intermediates and byproducts. The novel compounds contain at least three silicon-silicon bonds and at least one terminal silicon atom having three hydrogen substituents.
摘要:2024 Emergency Response Guidebook, 摘要:Merck Index - O'Neil MJ, Heckelman PE, Dobbelaar PH, Roman KJ (eds). The Merck Index, An Encyclopedia of Chemicals, Drugs, and Biologicals, 15th Ed. Cambridge, UK: The Royal Society of Chemistry, 2013.