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公开(公告)号：US12109620B2
公开(公告)日：2024-10-08
申请号：US16961174
申请日：2019-01-10
发明人： Jwa-Min Nam , Minho Kim , Sung Min Ko
摘要： The present invention relates to a method for preparing a core-gap-shell nanoparticle having an average height of 0.1 nm to 10 nm, in which a Raman-active material is disposed between a core and a shell, and more specifically, to a method for preparing a core-gap-shell nanoparticle, which comprises introducing a shell made of an alloy of a second metal and a third metal, on the core particles of the first metal, the surface of which is modified with a Raman-active material; selectively removing the second metal by treating with a second metal etchant, followed by dealloying; the core-gap-shell nanoparticle prepared by the above method comprising a Raman-active material disposed in the gap, and uses of the core-gap-shell nanoparticle for biosensing and/or bioimaging.
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公开(公告)号：US20240253113A1
公开(公告)日：2024-08-01
申请号：US18560990
申请日：2022-02-18
CPC分类号： B22F1/054 , B22F9/04 , B22F9/24 , B22F2301/10 , B22F2304/052 , B22F2998/10
摘要： A copper powder containing copper particles, wherein the copper powder has a packed bulk density of 1.30 g/cm3 to 2.96 g/cm3, and wherein a 50% particle diameter D50 when a cumulative frequency is 50% in a volume-based particle diameter histogram of the copper particles, and a crystallite diameter D determined from a diffraction peak of a Cu (111) plane in an X-ray diffraction profile obtained by powder X-ray diffractometry of the copper powder using Scherrer's formula satisfies D/D50≥0.060.
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公开(公告)号：US20240191323A1
公开(公告)日：2024-06-13
申请号：US18210646
申请日：2023-06-15
申请人： Nanjing University
发明人： Zhan QU , Xianze WANG , Hongqiang REN , Jinfeng WANG , Junzhen LIU , Yusen CHEN
CPC分类号： C22B11/046 , B22F9/04 , B22F9/24 , C01G3/02 , C22B1/005 , C22B3/22 , C22B3/44 , C22B7/007 , B22F2301/255
摘要： A method for recycling silver from a waste IC chip include: heating to disassemble an IC chip, and crushing the IC chip into powders; adding the powders to a nitric acid solution, heating, centrifuging and collecting a first filtrate; adding soluble starch to the first filtrate, where a mass concentration ratio of the soluble starch to Fe in the first filtrate is 5.20-7.30; heating a resulting mixture to 130-175° C. for a first hydrothermal reaction, separating a precipitate from the first hydrothermal reaction and collecting a second filtrate; heating the second filtrate to 160-230° C. for a second hydrothermal reaction, separating a solid from the second hydrothermal reaction and collecting a third filtrate; drying, grinding, and sieving the solid to obtain silver powders; and adding alkali to the third filtrate to form a precipitate of Cu, and separating the precipitate to yield copper hydroxide.
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4.发明授权公开(公告)号：US11987869B2
公开(公告)日：2024-05-21
申请号：US17273918
申请日：2020-07-17
发明人： Csilla Miko , Rémi Grosjean , Jean-Luc Bazin
IPC分类号： C22C5/02 , B22F1/00 , B22F1/05 , B22F1/052 , B22F1/102 , B22F9/24 , B28B1/00 , B28B11/24 , B33Y10/00 , B33Y40/10 , B33Y70/00 , C01B35/04 , C22C29/14 , B22F10/14 , B22F10/28
CPC分类号： C22C5/02 , B22F1/05 , B22F1/052 , B22F1/09 , B22F1/102 , B22F9/24 , B28B1/001 , B28B11/243 , B33Y10/00 , B33Y40/10 , B33Y70/00 , C01B35/04 , C22C29/14 , B22F10/14 , B22F10/28 , B22F2301/255 , B22F2302/05 , B22F2304/10 , C01P2004/50
摘要： A method for manufacturing an alloy formed from a boride of a precious metal, may involve reacting a source of the precious metal with a source of boron in a salt or a mixture of salts in the molten state. An alloy formed from a boride of a precious metal may include crystalline nanoparticles of MxBy with M being a precious metal, distributed in an amorphous matrix of B or in an amorphous matrix of B and of MzBa.
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公开(公告)号：US20240149345A1
公开(公告)日：2024-05-09
申请号：US18383737
申请日：2023-10-25
发明人： Reimi YAMADA , Jyunya MURAI
CPC分类号： B22F9/24 , B01J19/126 , B22F1/054 , B01J2219/1269 , B01J2219/1296 , B22F2202/11
摘要： There are provided a microwave irradiation apparatus and a production method of metal nanoparticles for producing the metal nanoparticles that allow efficiently preparing the metal nanoparticles having small and uniform particle sizes. The present disclosure relates to the microwave irradiation apparatus that includes two microwave irradiation sources, two waveguides, and one reaction portion. The two microwave irradiation sources are disposed such that respective microwave emission units thereof face one another. The two microwave irradiation sources, the two waveguides, and the one reaction portion are disposed such that respective microwaves emitted from the two microwave irradiation sources pass through the two waveguides and contact an entire surface of the one reaction portion. Furthermore, the reaction portion is adjusted to have a specific size.
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公开(公告)号：US11929341B2
公开(公告)日：2024-03-12
申请号：US17255289
申请日：2019-06-21
发明人： Shamik Ghosal , Remya Chandran , Venodh Manoharan , Siuli Sarkar , Bawa Singh , Rahul Raut
IPC分类号： B22F1/102 , B22F1/052 , B22F1/07 , B22F5/00 , B22F9/24 , B23K35/02 , B23K35/30 , H01L23/00 , B82Y40/00
CPC分类号： H01L24/29 , B22F1/052 , B22F1/07 , B22F1/102 , B22F5/006 , B22F9/24 , B23K35/025 , B23K35/302 , B22F2301/10 , B22F2304/054 , B22F2304/056 , B22F2304/058 , B82Y40/00
摘要： A sintering powder comprising copper particles, wherein: the particles are at least partially coated with a capping agent, and the particles exhibit a D10 of greater than or equal to 100 nm and a D90 of less than or equal to 2000 nm.
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公开(公告)号：US11905427B2
公开(公告)日：2024-02-20
申请号：US17347813
申请日：2021-06-15
申请人： XEROX CORPORATION
发明人： Guiqin Song , Sarah J. Vella , Barkev Keoshkerian
IPC分类号： C09D11/52 , B22F9/24 , C09D11/38 , B22F1/054 , B22F1/107 , B82Y40/00 , B82Y30/00 , B22F1/068
CPC分类号： C09D11/52 , B22F1/054 , B22F1/056 , B22F1/107 , B22F9/24 , C09D11/38 , B22F1/068 , B22F2301/30 , B22F2303/01 , B22F2303/05 , B22F2304/054 , B22F2304/056 , B82Y30/00 , B82Y40/00 , B22F2999/00 , B22F1/107 , C22C1/0466 , C22C1/0483 , B22F1/054 , B22F1/056
摘要： Provided herein is a composition for eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers and at least one organoamine stabilizer. Also provided herein is a process for preparing eutectic metal alloy nanoparticles comprising mixing at least one organic polar solvent, at least one organoamine stabilizer, and a eutectic metal alloy to create a mixture; sonicating the mixture at a temperature above the melting point of the eutectic metal alloy; and collecting a composition comprising a plurality of eutectic metal alloy nanoparticles having an average particle size ranging from about 0.5 nanometers to less than about 5000 nanometers. Further disclosed herein are hybrid conductive ink compositions comprising a component comprising a plurality of metal nanoparticles and a component comprising a plurality of eutectic metal alloy nanoparticles.
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公开(公告)号：US11897766B2
公开(公告)日：2024-02-13
申请号：US17980209
申请日：2022-11-03
申请人： SHOEI CHEMICAL INC.
发明人： Patrick Haben
CPC分类号： C01B19/007 , B22F1/054 , B22F1/16 , B22F9/24 , B22F2301/10 , B22F2301/20 , B22F2304/05 , B82Y30/00 , B82Y40/00
摘要： In a method for producing nanoparticles of copper selenide, a flowable copper precursor is formed by combining a copper starting material and a ligand, and a flowable selenium precursor is formed by suspending a selenium starting material in a liquid. Then a flowable copper-selenium mixture including a lower-polarity solvent is formed by combining the flowable copper precursor and the flowable selenium precursor. The flowable copper-selenium mixture is conducted through at least one heating unit, and the nanoparticles of copper selenide are isolated in an oxygen-depleted environment. The isolation includes combining a solution containing the nanoparticles of copper selenide and a deoxygenated, higher-polarity solvent to precipitate the nanoparticles.
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公开(公告)号：US11897036B2
公开(公告)日：2024-02-13
申请号：US17937634
申请日：2022-10-03
IPC分类号： B22F9/24 , B22F1/054 , B82Y40/00 , B22F1/0545
CPC分类号： B22F9/24 , B22F1/0553 , B22F1/054 , B22F1/056 , B22F1/0545 , B22F2202/11 , B22F2301/15 , B22F2301/25 , B22F2999/00 , B82Y40/00 , B22F2999/00 , B22F1/0553 , B22F2003/1054 , B22F2998/10 , C22C1/0433 , B22F1/0545 , B22F9/24 , B22F1/0553
摘要： Methods of forming metal multipod nanostructures. The methods may include providing a mixture that includes a metal acetylacetonate, a reducing agent, and a carboxylic acid. The mixture may be contacted with microwaves to form the metal multipod nanostructures. The methods may offer control over the structure and/or morphology of the metal multipod nanostructures.
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公开(公告)号：US11872635B2
公开(公告)日：2024-01-16
申请号：US17205140
申请日：2021-03-18
发明人： Yossi Weizmann , Kyle Gibson , Jung-Hoon Lee , Zoya Cheglakov
IPC分类号： C12Q1/6806 , B22F9/24 , B82Y40/00 , C30B7/00 , C30B7/14 , C30B29/52 , C30B29/34 , C30B29/02 , B22F1/054 , C30B29/66 , B82Y20/00 , B82Y30/00 , B22F1/052
CPC分类号： B22F9/24 , B22F1/0553 , B82Y40/00 , C30B7/005 , C30B7/14 , C30B29/02 , C30B29/34 , C30B29/52 , C30B29/66 , B22F1/052 , B82Y20/00 , B82Y30/00
摘要： Methods for forming samples of noble metal bipyramid nanocrystals having very low size and shape polydispersities from samples of mixed noble metal nanocrystals are provided. The samples include those comprising high purity, substantially monodisperse, plasmonic gold bipyramid nanocrystals. Also provided are methods of growing secondary twinned metal nanocrystals using the noble metal bipyramid nanocrystals as seed particles. Like the seed bipyramid nanocrystals from which they are grown, the secondary nanocrystals are twinned nanocrystals and may also be characterized by very low size and shape polydispersities. Secondary twinned nanocrystals grown by these methods include enlarged metal bipyramid nanocrystals and nanocrystals with anisotropic “dumbbell” shapes having a variety of tip geometries. Methods for using noble metal bipyramid nanocrystals as plasmonic heaters to heat reaction solutions via plasmonic-photothermal radiation-to-heat conversion are also provided.
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