专利号:WO-2025062384-A2 优先权日:2023-09-23 标题 :A method for synthesis of metal halide perovskite (cspbbr3) nano/microcrystals 发明人:M A GOKUL; RAHMAN ATIKUR 权利人:INDIAN INSTITUTE OF SCIENCE EDUCATION AND RES PUNE IISER PUNE 摘要:The present invention relates to metal halide perovskite (CsPbBr3) nano/microcrystals. Specifically, the present invention relates to a method for the synthesis of metal halide perovskite (CsPbBr3) nano/microcrystals. The present invention uses an easy, scalable low temperature growth of metal halide nanoparticles like CsPbBr3. The method uses a clever play on the solubility and ion exchange mechanism to precipitate nano and microcrystals of metal halide perovskites. The synthesis resulted in stable perovskite crystals with high photo- luminescence, ultralow dark current and control over their morphology. The combination of ultralow dark current, high responsivity, exceptional detectivity, and broad-band photon detection capabilities makes these crystals an excellent choice for upcoming sensors and detector technologies.
专利号:WO-2021014395-A1 优先权日:2019-07-24 标题:Process for the synthesis of deuterated capsaicin, capsaicinoids and synthetic capsaicin analogs 发明人:ORUGANTI SRINIVAS; AMRUTAPU SRAVANTH KUMAR; SAMPATH MAGESH; SEN SAIKAT 权利人:DR REDDY’S INST OF LIFE SCIENCES 摘要:The present application provides novel processes for the synthesis of deuterated intermediates of capsaicinoids, particularly II, III, IV and V of capsaicinoids, relating to pharmaceutical applications. The invention also provides novel intermediates of compounds of formula IX, XIV, XV, XVI, XVII, XVIII, XX and XXI utilized in the process of making deuterated capsaicin II, III, IV and V.
专利号:WO-2018020240-A1 优先权日:2016-07-27 标 题:Process for the synthesis of semiconductor nanocrystals 发明人:HOU BO; CHA SEUNGNAM 权利人:UNIV OXFORD INNOVATION LTD 摘要:The invention relates to a process for the synthesis of semiconductor nanocrystals, comprising mixing a nonaqueous solution of a metal precursor with a solid-state chalcogen and reacting the resulting mixture at a temperature of about 90 °C or greater. In another aspect the invention relates to the use of a solid chalcogen in the heterogeneous synthesis of metal chalcogenide semiconductor nanocrystals. Semiconductor nanocrystals obtainable by the processes of the invention are further provided. In particular, nanocrystalline PbS or PbSe having a band gap of greater than 1.6 eV and/or a photoluminescence emission wavelength of about 440 to about 515 nm, and nanocrystalline ZnS or ZnSe having a photoluminescence emission wavelength of about 410 to about 430 nm, and solar cells comprising such nanocrystals, are provided.
专利号:US-10913056-B2 优先权日:2017-07-31 标 题:Method for synthesis of copper/copper oxide nanocrystals 发明人:CHEN GUGANG; HARUTYUNYAN AVETIK; RAO YI; LI XIA 权利人:HONDA MOTOR CO LTD; UNIV TEMPLE; TEMPLE UNIV OF THE COMMONWEALTH SYSTEM OF HI 摘要:A simple approach to produce mixed Cu/Cu 2 O nanocrystals having a specific morphology by controlling the reaction temperature during Cu/Cu 2 O nanocrystals synthesis. Other variables are kept constant, such as the amount of reactants, while the reaction temperatures is maintained at a predetermined temperature of 70° C., 30° C. or 0° C., which are used to produce different and controlled morphologies for the Cu/Cu 2 O nanocrystals. The reaction mixture includes a copper ion contributor, a capping agent, a pH adjustor, and reducing agent. The reaction mixture is held at the predetermined temperature for three hours to produce the Cu/Cu 2 O nanocrystals. The synthesis method has advantages such as mass production, easy operation, and high reproducibility.
专利号:US-8110021-B2 优先权日:2008-07-28 标题:Synthesis of PtCo nanoparticles 发明人:ZHONG CHUAN-JIAN; LUO JIN; XU ZHICHAUN; HE TING 权利人:ZHONG CHUAN-JIAN; LUO JIN; XU ZHICHAUN; HE TING; HONDA MOTOR CO LTD; UNIV NEW YORK STATE RES FOUND 摘要:Synthesis of nanoparticles with particle size control is provided by the method of using two different metal-containing precursors, a capping component, an optional reducing agent, and then contacting the two precursors with the capping component to form a reaction solution, which is heated to produce first and second metals-containing nanoparticles. By controlling the ratio of the concentration of the capping component to the total concentration of the two metal-containing precursors, the nanoparticles can have diameters ranging between about 1 nm to about 15 nm. A decrease in the concentration of the capping component typically increases the size of the nanoparticles. Preferred compositions include Pt and Co-containing alloy nanoparticles. Controlled synthesis of larger, about 6 nm to about 12 nm, sized nanoparticles can be achieved in a solvent-free reaction process.
专利号:US-2014194584-A1 优先权日:2013-01-07 标题 :Process for the synthesis of w-Unsaturated nitrile-acid/ester in which two types of cross metathesis are alternated consecutively swing process 发明人:DUBOIS JEAN-LUC; COUTURIER JEAN-LUC 权利人:ARKEMA FRANCE 摘要:The invention relates to a process for the synthesis of a monounsaturated nitrile-ester (acid) by cross metathesis starting from an unsaturated compound I comprising at least one trivalent nitrile, acid or ester functional group, characterized in that it comprises a stage in which two types of cross metathesis are alternated consecutively:n a first type of cross metathesis cm1 with an acrylic compound II chosen from acrylonitrile, acrylic acid or an acrylic ester, one of the compounds I or II comprising a nitrile functional group and the other of these compounds II or I comprising an acid or ester functional group, and a second type of cross metathesis cm2 with a light C 2 to C 4 alkene compound III, preferably with ethylene. nn The invention also relates to a process for the synthesis of an α,ω-amino ester (acid) obtained by a process comprising a stage in which the two types of cross metathesis defined above are alternated consecutively, followed by a hydrogenation stage.
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