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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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2.发明公开公开(公告)号：US20240247387A1
公开(公告)日：2024-07-25
申请号：US18157114
申请日：2023-01-20
Inventor： Muhammad Ali EHSAN
IPC: C25B11/075 , C25B1/04 , C25B11/031 , C25B11/081
CPC classification number: C25B11/075 , C25B1/04 , C25B11/031 , C25B11/081
Abstract: An electrocatalyst including a nickel foam (NF) substrate and a layer of metallic nickel particles on the nickel foam substrate. The metallic nickel particles are spherical and have an average diameter of 100-500 nanometers (nm). Further, the metallic nickel particles are aggregated with aggregates having an average size of 0.5 to 5 micrometers (μm).
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3.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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公开(公告)号：US20210237037A1
公开(公告)日：2021-08-05
申请号：US16781597
申请日：2020-02-04
Inventor： Muhammad Ali EHSAN , Khurram Saleem JOYA
Abstract: A noble metal-free water oxidation electrocatalyst can be stable and obtained from earth-abundant materials, e.g., using copper-colloidal nanoparticles. The catalyst may contain nanobead and nanorod morphological features with narrow size distribution. The onset for oxygen evolution reaction can occur at a potential of 1.45 VRHE (η=220 mV). Such catalysts may be stable during long-term water electrolysis and/or exhibit a high electroactive area, e.g., with a Tafel slope of 52 mV/dec, TOF of 0.81 s−1, and/or mass activity of 87 mA/mg. The copper may also perform CO2 reduction at the cathode side. The Cu-based electrocatalytic system may provide a flexible catalyst for electrooxidation of water and for chemical energy conversion, without requiring Pt, Ir, or Ru.
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Patent Agency Ranking
公开(公告)号：US20250051940A1
公开(公告)日：2025-02-13
申请号：US18448681
申请日：2023-08-11
Inventor： Muhammad Ali EHSAN , Abuzar KHAN
IPC: C25B11/089 , C25B1/04 , C25B11/02 , C25B11/061
Abstract: A method of generating oxygen including applying a potential of greater than 0 to 2.0 V to an electrochemical cell. The electrochemical cell is at least partially submerged in an aqueous solution, 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 a FeNi alloy on the surface of the nickel foam substrate, where the particles of the FeNi alloy are in the form of nanosheets, where the nanosheets have average width of 1-5 μm and an average length of 1-10 μm, and where the nanosheets are vertically aligned to form a flower shape.
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公开(公告)号：US20240271299A1
公开(公告)日：2024-08-15
申请号：US18606793
申请日：2024-03-15
Inventor： Abdul REHMAN , Abbas Hakeem SAEED , Muhammad Ali EHSAN
CPC classification number: C25B11/073 , C01G31/006 , C01G51/42 , C25B1/04 , H01M4/485 , H01M4/525
Abstract: A CoVOx composite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 μm thick layer of CoVOx having pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOx composite electrode is capable of being used in an electrochemical cell for water oxidation.
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公开(公告)号：US20240124991A1
公开(公告)日：2024-04-18
申请号：US18336394
申请日：2023-06-16
Inventor： Muhammad Ali EHSAN , Abuzar KHAN
IPC: C25B11/02 , C23C16/40 , C23C16/448 , C25B1/04 , C25B11/052 , C25B11/061 , C25B11/077
CPC classification number: C25B11/02 , C23C16/405 , C23C16/406 , C23C16/4486 , C25B1/04 , C25B11/052 , C25B11/061 , C25B11/077
Abstract: A rapid method of synthesizing nanoflowers made of nanoflakes of nickel molybdate (NiMoO4) directly on nickel foam (NF) through an aerosol-assisted chemical vapor deposition (AACVD) process is disclosed. The nickel molybdate nanoflowers were grown on NF by varying the deposition time for 60 and 120 min at a fixed temperature of 480° C. and their efficiency was investigated as oxygen evolution reaction (OER) catalysts in 1 M KOH electrolyte. The NiMoO4 nanoflowers of NF obtained after 60 minutes of AACVD process showed OER performance with lowest overpotential of 320 mV to reach standard current density of 10 mA cm−2. The catalyst continuously performed the OER for 15 h, signifying its prominent stability under electrochemical conditions.
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公开(公告)号：US20220396872A1
公开(公告)日：2022-12-15
申请号：US17818420
申请日：2022-08-09
Inventor： Muhammad Ali EHSAN , Abdul REHMAN
IPC: C23C16/40 , C25B1/04 , B01J19/12 , H01G9/20 , H01G9/00 , C23C16/448 , C25B1/55 , C25B11/081 , C25B11/091
Abstract: A simple, one-step method for producing a homogenous CeO2—TiO2 composite thin film using aerosol-assisted chemical vapor deposition (“CVD”) of a solution containing triacetatocerium (III) and tetra isopropoxytitanium (IV) on a fluorine-doped tin oxide (“FTO”) substrate at a temperature ranging from about 500 to about 650° C. Methods for using the film produced by this method.
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公开(公告)号：US20210115578A1
公开(公告)日：2021-04-22
申请号：US16660160
申请日：2019-10-22
Inventor： Abdul REHMAN , Abbas Hakeem SAEED , Muhammad Ali EHSAN
Abstract: A CoVOx composite electrode and method of making is described. The composite electrode comprises a substrate with an average 0.5-5 μm thick layer of CoVOx having pores with average diameters of 2-200 nm. The method of making the composite electrode involves contacting the substrate with an aerosol comprising a solvent, a cobalt complex, and a vanadium complex. The CoVOx composite electrode is capable of being used in an electrochemical cell for water oxidation.
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