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公开(公告)号：US20190077717A1
公开(公告)日：2019-03-14
申请号：US16189581
申请日：2018-11-13
Inventor： Abbas Saeed HAKEEM , Tahar Laoui , Muhammad Ali Ehsan , Bilal Anjumn Ahmed
IPC: C04B35/626 , C04B35/645 , C04B35/628 , C04B35/597
CPC classification number: C04B35/62635 , C04B35/597 , C04B35/62615 , C04B35/62625 , C04B35/62842 , C04B35/645 , C04B2235/3206 , C04B2235/3418 , C04B2235/386 , C04B2235/3865 , C04B2235/3878 , C04B2235/405 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/666 , C04B2235/762 , C04B2235/766 , C04B2235/767 , C04B2235/80 , C04B2235/96
Abstract: A method for producing a composite of cubic boron nitride dispersed in a SiAlON ceramic. This method involves mixing silicon nitride nanoparticles, aluminum nitride nanoparticles, silica nanoparticles, calcium oxide nanoparticles, and cubic boron nitride microparticles to produce a mixture. The cubic boron nitride may be coated with nickel. The mixture is sintered to produce the composite, and this sintering may involve spark plasma sintering and/or sintering at a relatively low temperature. The composite may comprise a mixture of Ca-α-SiAlON and β-SiAlON ceramic reinforced by boron nitride in either or both cubic and hexagonal phases.
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公开(公告)号：US20170267589A1
公开(公告)日：2017-09-21
申请号：US15074646
申请日：2016-03-18
Inventor： Abbas Saeed HAKEEM , Tahar Laoui , Moath Mohammad Almaliki , Awais Muhammad Raja Khan , Faheemuddin Patel
IPC: C04B35/597 , C04B35/64
CPC classification number: C04B35/597 , C04B35/64 , C04B35/645 , C04B2235/3208 , C04B2235/3869 , C04B2235/3878 , C04B2235/402 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/6562 , C04B2235/666 , C04B2235/766 , C04B2235/767 , C04B2235/78 , C04B2235/788 , C04B2235/80
Abstract: A Ca—SiAlON ceramic with enhanced mechanical properties and a method employing micron-sized and submicron precursors to form the Ca—SiAlON ceramic. The Ca—SiAlON ceramic comprises not more than 42 wt % silicon, relative to the total weight of the Ca—SiAlON ceramic. The method employs submicron particles and also allows for substituting a portion of aluminum nitride with aluminum to form the Ca—SiAlON ceramic with enhanced mechanical properties.
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公开(公告)号：US20250091960A1
公开(公告)日：2025-03-20
申请号：US18467936
申请日：2023-09-15
Inventor： Syed Sohail AKHTAR , Amer Duraywish ALOTAIBI , Abba Abdulhamid ABUBAKAR , Abbas Saeed HAKEEM , Khaled S. AL-ATHEL , Akeem Yusuf ADESINA
IPC: C04B35/597 , C04B35/64
Abstract: A functionally graded (FG) SiAlON composite cutting tool includes a cutting head having a cutting surface containing the FG SiAlON composite. The FG SiAlON composite is obtained by sintering one or more powder compositions containing SiO2 particles having a particle size of 20 to 50 nanometers (nm), AlN particles having a particle size of up to 100 nm, Si3N4 particles having a particle size of 300 to 500 nm, Al2O3 particles having a particle size of up to 100 nm, Yb2O3 particles having a particle size of up to 100 nm, and one or more reinforcement additives selected from the group consisting of cobalt (Co) particles, titanium carbonitride (TiCN) particles, cobalt alloy particles, and a boron nitride compound. The one or more reinforcement additives have an average particle size in a range of 50 nm to 35 micrometers (μm).
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公开(公告)号：US20210214850A1
公开(公告)日：2021-07-15
申请号：US16738597
申请日：2020-01-09
Inventor： Muhammad Ali EHSEN , Abbas Saeed HAKEEM , Abdul REHMAN
Abstract: A thin film electrode involving a nanostructured catalytic material deposited onto a surface of a conducting substrate and method of making is described. The nanostructured catalytic material contains cobalt oxide nanoflowers having a central core and nanopetals extending from the central core. The method of making the thin film electrode involves contacting the conducting substrate with an aerosol containing a cobalt complex and a solvent. A method of using the thin film electrode in an electrochemical cell for water splitting is also provided.
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公开(公告)号：US20240417871A1
公开(公告)日：2024-12-19
申请号：US18333606
申请日：2023-06-13
Inventor： Muhammad Ali EHSAN , Abbas Saeed HAKEEM
IPC: C25B11/052 , C23C16/40 , C23C16/448 , C25B1/04 , C25B9/17 , C25B11/031 , C25B11/061 , C25B11/077
Abstract: A method of generating oxygen including applying a potential of greater than 0 to 2.0V to an electrochemical cell, where the electrochemical cell is at least partially submerged in an aqueous solution, and where on applying the potential the aqueous solution is oxidized thereby forming oxygen. The electrochemical cell includes an electrocatalyst; and a counter electrode. The electrocatalyst includes a nickel foam substrate; and a layer of particles of FeNiOx on a surface of the nickel foam substrate, wherein x=3-4. The particles of FeNiOx have a nanorod shape with an average diameter of 100-500 nanometers (nm) and a length longer than 500 nm. The terminal end of the nanorod shape has a cap with a hemispherical shape having a diameter larger than the average diameter of the nanorod shape.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240044026A1
公开(公告)日：2024-02-08
申请号：US17876215
申请日：2022-07-28
Inventor： Muhammad Ali EHSAN , Abbas Saeed HAKEEM
IPC: C25B11/077 , C23C16/40 , C23C16/448 , C23C16/04 , C25B1/04 , C25B11/031 , C25B11/052 , C25B11/061
CPC classification number: C25B11/077 , C23C16/405 , C23C16/4486 , C23C16/045 , C25B1/04 , C25B11/031 , C25B11/052 , C25B11/061
Abstract: An electrocatalyst and a method of preparing the electrocatalyst are described. The electrocatalyst includes a porous foam substrate; and a catalytically active layer comprising NiVOx nanostructures, the catalytically active layer being disposed on an exterior surface and an interior pore surface of the porous metal foam substrate; where “x” is in the range of 1 to 3. A method of using the electrocatalyst for water oxidation is also described.
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公开(公告)号：US20220367844A1
公开(公告)日：2022-11-17
申请号：US17874360
申请日：2022-07-27
Inventor： Muhammad Ali EHSAN , Manzar SOHAIL , Abbas Saeed HAKEEM
Abstract: A method of making a nanostructured palladium thin film electrode is described. The method involves contacting a substrate with an aerosol comprising a solvent and a Pd(II) compound. The substrate is heated, and no hydrogen gas or an additional reducing agent is required to reduce the Pd(II) to form the deposited thin film. The nanostructured palladium thin film electrode is capable of detecting compounds such as hydrazine in an aqueous sample with a 10 nM limit of detection.
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8.发明申请公开(公告)号：US20180155250A1
公开(公告)日：2018-06-07
申请号：US15833020
申请日：2017-12-06
Inventor： Abbas Saeed HAKEEM , Tahar Laoui , Muhammad Ali Ehsan , Bilal Anjum Ahmed
IPC: C04B35/626 , C04B35/597 , C04B35/628 , C04B35/645
CPC classification number: C04B35/62635 , C04B35/597 , C04B35/62615 , C04B35/62625 , C04B35/62842 , C04B35/645 , C04B2235/3206 , C04B2235/3418 , C04B2235/386 , C04B2235/3865 , C04B2235/3878 , C04B2235/405 , C04B2235/5436 , C04B2235/5445 , C04B2235/5454 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/666 , C04B2235/762 , C04B2235/766 , C04B2235/767 , C04B2235/80 , C04B2235/96
Abstract: A method for producing a composite of cubic boron nitride dispersed in a SiAlON ceramic. This method involves mixing silicon nitride nanoparticles, aluminum nitride nanoparticles, silica nanoparticles, calcium oxide nanoparticles, and cubic boron nitride microparticles to produce a mixture. The cubic boron nitride may be coated with nickel. The mixture is sintered to produce the composite, and this sintering may involve spark plasma sintering and/or sintering at a relatively low temperature. The composite may comprise a mixture of Ca-α-SiAlON and β-SiAlON ceramic reinforced by boron nitride in either or both cubic and hexagonal phases.
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公开(公告)号：US20250043392A1
公开(公告)日：2025-02-06
申请号：US18363421
申请日：2023-08-01
Inventor： Abbas Saeed HAKEEM , Muhammad Ali EHSAN , Hafiz Muzammil IRSHAD , Bilal Anjum AHMED
IPC: C22C1/05 , B22F3/10 , C04B35/5831 , C04B35/626 , C04B35/645 , C22C21/00 , C22C26/00
Abstract: A method of making an aluminum-cubic boron nitride (Al-cBN) composite includes mixing an aluminum powder and particles of cubic boron nitride (cBN) in a solvent and sonicating to form an Al-cBN mixture; drying the Al-cBN mixture to form a dried mixture powder; and sintering by pressing and heating the dried mixture powder to form the Al-cBN composite. The aluminum powder has an average particle size of 10 to 100 micrometers (μm). The cBN particles have an average particle size of from 10 to 100 μm, and are uniformly dispersed throughout the Al-cBN composite.
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10.发明公开公开(公告)号：US20230407497A1
公开(公告)日：2023-12-21
申请号：US17844439
申请日：2022-06-20
Inventor： Muhammad Ali EHSAN , Abbas Saeed HAKEEM
IPC: C25B11/052 , C23C16/448 , C23C16/30 , C25B1/04 , C25B11/075 , C25B11/065 , C25B11/061 , C25B11/031
CPC classification number: C25B11/052 , C23C16/4486 , C23C16/305 , C25B1/04 , C25B11/075 , C25B11/065 , C25B11/061 , C25B11/031
Abstract: An aerosol-assisted chemical vapor-deposition (AACVD) method of making nickel sulfide (NiS) nanowires. The method includes depositing a nickel carbamate compound onto a conductive support by an AACVD technique to form nickel sulfide (NiS) nanowires on the conductive support, where the nanowires are present directly on a surface of the conductive support. The NiS electrode prepared by the process of the present disclosure showed excellent OER activity in 1.0 M KOH solution, with a low Tafel value (60 mV dec−1) and good OER stability. The NiS nanowires, as prepared, can be used in energy conversion devices such as batteries, fuel cells, and supercapacitors.
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