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公开(公告)号：US20170369792A1
公开(公告)日：2017-12-28
申请号：US15190435
申请日：2016-06-23
申请人： KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS , COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
发明人： Zain Hassan YAMANI , Nouar Tabet , Syed Ahmed Ali , Yann Leconte , Frederic Schuster , Axelle Quinsac
CPC分类号： C10G45/08 , B01J23/28 , B01J23/30 , B01J23/882 , B01J23/883 , B01J27/051 , B01J27/0515 , B01J35/0013 , B01J35/006 , B01J35/023 , B01J37/08 , B01J37/082 , B01J37/20 , B01J37/34 , B01J37/349 , C10G45/00 , C10G45/04 , C10G2300/202
摘要： A process for producing an unsupported molybdenum sulfide nanocatalyst comprising atomizing a molybdenum oxide solution to form a molybdenum oxide aerosol, pyrolyzing the molybdenum oxide aerosol with a laser beam to form the unsupported molybdenum-based nanocatalyst, and pre-sulfiding at least a portion of the unsupported molybdenum-based nanocatalyst to form an unsupported molybdenum sulfide nanocatalyst, wherein the unsupported molybdenum-based nanocatalyst, the unsupported molybdenum sulfide catalyst or both are in the form of nanoparticles with a diameter of 1-10 nm and in a distorted rutile crystalline structure. A method of selective deep hydrodesulfurization whereby a hydrocarbon feedstock having at least one sulfur-containing component and at least one hydrocarbon is contacted with the unsupported molybdenum sulfide nanocatalyst.
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公开(公告)号：US20240133017A1
公开(公告)日：2024-04-25
申请号：US17971683
申请日：2022-10-23
IPC分类号： C23C14/00 , C23C14/08 , C25B1/04 , C25B1/55 , C25B11/091
CPC分类号： C23C14/0036 , C23C14/083 , C23C14/086 , C25B1/04 , C25B1/55 , C25B11/091
摘要： A method for coating a substrate with a Co-Pi modified BiVO4/WO3 heterostructure film includes direct current reactive sputtering tungsten (W) onto a substrate in a gaseous mixture containing oxygen to form a tungsten trioxide (WO3) film, direct current reactive sputtering bismuth (Bi) onto the tungsten trioxide (WO3) film in a gaseous mixture containing oxygen to form a dibismuth trioxide (Bi2O3) film, drop-casting a vanadyl acetylacetonate solution onto the Bi2O3 film and heating at a temperature of at least 450° C. in ambient air to convert the Bi2O3 film to a BiVO4 film, and photoelectrochemically coating the BiVO4 film with a cobalt-phosphate (Co-Pi) to form a modified film on the surface of the substrate. A photoanode containing the Co-Pi modified BiVO4/WO3 heterostructure film prepared by the method, and its application in water splitting.
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公开(公告)号：US20190339227A1
公开(公告)日：2019-11-07
申请号：US15970575
申请日：2018-05-03
IPC分类号： G01N27/414 , G01N27/416 , G01N27/333 , C23C14/08 , C23C14/34 , C23C14/16 , C01G55/00 , C01G19/02
摘要： A room temperature hydrogen gas sensor comprising tin(IV) oxide and platinum layered on an electrode substrate is described. The tin(IV) oxide may be polycrystalline with an average layer thickness of 10-700 nm, and topped with platinum having an average layer thickness of 1-15 nm. The room temperature hydrogen gas sensor may be used to detect and measure levels of H2 gas at room temperature and at concentrations of 50-1800 ppm, with fast response and high stability. A method of making the room temperature hydrogen gas sensor is also described, and involves sputtering to deposit tin(IV) oxide and platinum on a substrate, which is then subjected to low-temperature annealing step.
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公开(公告)号：US20240229218A9
公开(公告)日：2024-07-11
申请号：US17971683
申请日：2022-10-24
IPC分类号： C23C14/00 , C23C14/08 , C25B1/04 , C25B1/55 , C25B11/091
CPC分类号： C23C14/0036 , C23C14/083 , C23C14/086 , C25B1/04 , C25B1/55 , C25B11/091
摘要： A method for coating a substrate with a Co-Pi modified BiVO4/WO3 heterostructure film includes direct current reactive sputtering tungsten (W) onto a substrate in a gaseous mixture containing oxygen to form a tungsten trioxide (WO3) film, direct current reactive sputtering bismuth (Bi) onto the tungsten trioxide (WO3) film in a gaseous mixture containing oxygen to form a dibismuth trioxide (Bi2O3) film, drop-casting a vanadyl acetylacetonate solution onto the Bi2O3 film and heating at a temperature of at least 450° C. in ambient air to convert the Bi2O3 film to a BiVO4 film, and photoelectrochemically coating the BiVO4 film with a cobalt-phosphate (Co-Pi) to form a modified film on the surface of the substrate. A photoanode containing the Co-Pi modified BiVO4/WO3 heterostructure film prepared by the method, and its application in water splitting.
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公开(公告)号：US20240043279A1
公开(公告)日：2024-02-08
申请号：US17881173
申请日：2022-08-04
IPC分类号： C01B39/38
CPC分类号： C01B39/38 , C01P2004/38 , C01P2004/61 , C01P2004/62 , C01P2002/72 , C01P2004/03 , C01P2002/88
摘要： The present disclosure relates to a method of making a zeolite. The method includes mixing an aluminum nitrate with an aqueous solution of NaOH to form a first mixture followed by mixing silica gel with the first mixture to form a second mixture. The second mixture is heated with microwave irradiation to form a first sample. The method further includes washing, drying, and ion exchanging the first sample with ammonium nitrate to form a second sample. The method includes calcining the second sample to form the zeolite, wherein the method does not use a seed or a structural directing agent.
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公开(公告)号：US20210095384A1
公开(公告)日：2021-04-01
申请号：US16589711
申请日：2019-10-01
摘要： A method for making an electrocatalyst containing manganese oxide nanoparticles present on carbon obtained from Albizia procera (MnOxNPs-C) for electrochemical water oxidation. The method includes a thermal decomposition and forms a product with specific morphological variations, including crystalline structure, elemental composition, and chemical compatibility. The manganese oxide nanoparticles are well dispersed over the carbon. The amount of manganese oxide nanoparticles increases by increasing the amount of precursor. Single-phase formation of the Mn3O4, and Mn3O4 along with MnO phase occurs at low and high amount of the precursor materials, respectively. The electrocatalyst can be used for the purpose electrolytic water splitting.
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公开(公告)号：US20230070856A1
公开(公告)日：2023-03-09
申请号：US17976466
申请日：2022-10-28
IPC分类号： G01N33/00 , C23C8/16 , G01N27/407 , G01N27/12
摘要： A hydrogen gas sensor with a substrate and a zinc oxide nanostructured thin film deposited on the substrate, wherein the zinc oxide nanostructured thin film has a lattice structure with a weight ratio of low binding energy O2− ions to medium binding energy oxygen vacancies in a range of 0.1 to 1.0, and a method of fabricating a gas sensor by thermally oxidizing a metal thin film under low oxygen partial pressure. Various combinations of embodiments of the hydrogen gas sensor and the method of fabricating the gas sensor are provided.
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公开(公告)号：US20210087062A1
公开(公告)日：2021-03-25
申请号：US16582748
申请日：2019-09-25
IPC分类号： C01B32/18 , H01G9/04 , C01B32/348
摘要： A method of preparing porous nitrogen-doped carbon nanosheets by pyrolysis of Albizia procera leaves. The nitrogen-doped carbon nanosheets display enhanced electrochemical properties including large surface area and specific capacitance. Electrodes coated with the nitrogen-doped carbon nanosheets are particularly suitable for use in supercapacitors and solar cells.
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公开(公告)号：US20200064304A1
公开(公告)日：2020-02-27
申请号：US16667258
申请日：2019-10-29
IPC分类号： G01N27/407 , G01N27/12 , C23C8/16
摘要： A hydrogen gas sensor with a substrate and a zinc oxide nanostructured thin film deposited on the substrate, wherein the zinc oxide nanostructured thin film has a lattice structure with a weight ratio of low binding energy O2− ions to medium binding energy oxygen vacancies in a range of 0.1 to 1.0, and a method of fabricating a gas sensor by thermally oxidizing a metal thin film under low oxygen partial pressure. Various combinations of embodiments of the hydrogen gas sensor and the method of fabricating the gas sensor are provided.
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公开(公告)号：US20190085475A1
公开(公告)日：2019-03-21
申请号：US16192133
申请日：2018-11-15
发明人： Md. Abdul AZIZ , Mohammed Nasiruzzaman SHAIKH , Zain Hassan YAMANI , Wael MAHFOZ , Fatai Olawale BAKARE
摘要： A method for manufacturing a palladium coated doped metal oxide conducting electrode including immersing a metal oxide conducting electrode into an aqueous solution having a palladium precursor salt to form the metal oxide conducting electrode having at least one surface coated with palladium precursor. To form a layer of palladium nanoparticles on the metal oxide conducting electrode the palladium precursor on the metal oxide conducting is reduced with a borohydride compound. The palladium nanoparticles on the metal oxide conducting electrode have an average diameter of 8 nm to 22 nm and are present on the surface of the metal oxide conducting electrode at a density from 1.5×10−3 Pd·nm−2 to 3.5×10−3 Pd·nm−2.
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