Patents by Inventor MD ABDUL AZIZ

MD ABDUL AZIZ has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11980875
    Abstract: A method for making a magnetic-nanoparticle-supported catalyst includes reacting a ferrocenyl phosphine compound with an amino alcohol compound to form a ligand having a phosphine group, an amine group and at least one hydroxyl group; anchoring the ligand to a surface of magnetic nanoparticles via an oxygen atom of the hydroxyl group to form a ligand complex; combining the ligand complex with a metal precursor comprising Rh to bind the metal precursor with the ligand complex and form the magnetic-particle-supported catalyst. The magnetic-particle-supported catalyst is a Rh complex of magnetic-Fe3O4-nanoparticle-supported ferrocenyl phosphine catalyst.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: May 14, 2024
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: M. Nasiruzzaman Shaikh, S. M. Shakil Hussain, Md. Abdul Aziz
  • Publication number: 20240091753
    Abstract: A method for making a magnetic-nanoparticle-supported catalyst includes reacting a ferrocenyl phosphine compound with an amino alcohol compound to form a ligand having a phosphine group, an amine group and at least one hydroxyl group; anchoring the ligand to a surface of magnetic nanoparticles via an oxygen atom of the hydroxyl group to form a ligand complex; combining the ligand complex with a metal precursor comprising Rh to bind the metal precursor with the ligand complex and form the magnetic-particle-supported catalyst. The magnetic-particle-supported catalyst is a Rh complex of magnetic-Fe3O4-nanoparticle-supported ferrocenyl phosphine catalyst.
    Type: Application
    Filed: August 23, 2022
    Publication date: March 21, 2024
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: M. Nasiruzzaman SHAIKH, S. M. Shakil HUSSAIN, Md. Abdul AZIZ
  • Publication number: 20240067832
    Abstract: A method for producing a submicron-/nano-jute carbon/epoxy composite anti-corrosion coating is described. The method includes heating a jute stick, grinding the jute stick to form a first powder; pyrolyzing the first powder to form a pyrolyzed carbon; grinding the pyrolyzed carbon to form a second powder; ball milling the second powder under the wet conditions to form a submicron-/nano-jutecarbon; mixing the submicron-/nano-jutecarbon, and an epoxy resin to form a first mixture; mixing a hardener with the first mixture to form a second mixture, and coating the second mixture on a mild steel substrate and curing to form the submicron-/nano-jutecarbon/epoxy composite anti-corrosion coating.
    Type: Application
    Filed: August 26, 2022
    Publication date: February 29, 2024
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul AZIZ, Shaik Inayath BASHA, Mohammed MASLEHUDDIN, Shamsad AHMAD
  • Publication number: 20240010846
    Abstract: An anticorrosive nanocomposite is described. The anticorrosive nanocomposite includes a cured epoxy and jute carbon. The jute carbon is in the form of flakes. The flakes have a particle size of 0.05-15 micrometers (?m). Particles of the jute carbon are dispersed in the cured epoxy. A method of preparing the jute carbon is also described.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 11, 2024
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul AZIZ, Shaik Inayath BASHA, Mohammed MASLEHUDDIN, Shamsad AHMAD
  • Patent number: 11845894
    Abstract: A method of recovering a hydrocarbon from a reservoir is described. The method includes injecting an oil recovery formulation into the reservoir, and collecting the hydrocarbon from the reservoir. The oil recovery formulation includes date leaf particles selected from the group consisting of carboxylic acid functionalized date leaf particles and non-functionalized date leaf particles. The date leaf particles have an average particle size of 30 to 950 nanometers (nm). A method for preparing the carboxylic acid functionalized date leaf particles is also provided.
    Type: Grant
    Filed: March 7, 2023
    Date of Patent: December 19, 2023
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Bashirul Haq, Md. Abdul Aziz, Abbad Saeed Hakeem, Dhafer Al Shehri
  • Patent number: 11795555
    Abstract: A method of making NiO nanoparticles is described, as well as a method of using NiO nanoparticles as an electrocatalyst component to a porous carbon electrode. The carbon electrode may be made of carbonized filter paper. Together, this carbon-supported NiO electrode may be used for water electrolysis. Using a pamoic acid salt in the NiO nanoparticle synthesis leads to smaller and monodisperse nanoparticles, which support higher current densities.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: October 24, 2023
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Md. Abdul Aziz, Mohammed Ameeh Ahmed Qasem
  • Publication number: 20230295817
    Abstract: A synthetic methodology for robust, nanostructured films of cobalt oxide over metal evaporated gold or similar material layer of, e.g., 50 nm, directly onto glass or other substrates via aerosol assisted chemical vapor deposition (AACVD). This approach allows film growth rates in the range of, e.g., 0.8 nm/s, using a commercially available precursor, which is ~10-fold the rate of electrochemical synthetic routes. Thus, 250 nm thick cobalt oxide films may be generated in only 5 minutes of deposition time. The water oxidation reaction for such films may start at ~0.6 V vs Ag/AgCl with current density of 10 mA/cm2 and is achieved at ~0.75 V corresponding to an overpotential of 484 mV. This current density is further increased to 60 mA/cm2 at ~1.5 V (vs Ag/AgCl). Electrochemically active surface area (ECSA) calculations indicate that the synergy between a Au-film, acting as electron sink, and the cobalt oxide film(s), acting as catalytic layer(s), are more pronounced than the surface area effects.
    Type: Application
    Filed: April 13, 2023
    Publication date: September 21, 2023
    Inventors: Muhammad Ali EHSAN, Md. Abdul AZIZ, Abbas Saeed HAKEEM
  • Patent number: 11712680
    Abstract: A supported catalyst having rhodium particles with an average diameter of less than 1 nm disposed on a support material containing magnetic iron oxide (e.g. Fe3O4). A method of producing the supported catalyst and a process of reducing nitroarenes to corresponding aromatic amines employing the supported catalyst with a high product yield are also described. The supported catalyst may be recovered with ease using an external magnet and reused.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: August 1, 2023
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: M. Nasiruzzaman Shaikh, Md. Abdul Aziz
  • Patent number: 11702756
    Abstract: A synthetic methodology for robust, nanostructured films of cobalt oxide over metal evaporated gold or similar material layer of, e.g., 50 nm, directly onto glass or other substrates via aerosol assisted chemical vapor deposition (AACVD). This approach allows film growth rates in the range of, e.g., 0.8 nm/s, using a commercially available precursor, which is ˜10-fold the rate of electrochemical synthetic routes. Thus, 250 nm thick cobalt oxide films may be generated in only 5 minutes of deposition time. The water oxidation reaction for such films may start at ˜0.6 V vs Ag/AgCl with current density of 10 mA/cm2 and is achieved at ˜0.75 V corresponding to an overpotential of 484 mV. This current density is further increased to 60 mA/cm2 at ˜1.5 V (vs Ag/AgCl). Electrochemically active surface area (ECSA) calculations indicate that the synergy between a Au-film, acting as electron sink, and the cobalt oxide film(s), acting as catalytic layer(s), are more pronounced than the surface area effects.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: July 18, 2023
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Muhammad Ali Ehsan, Md. Abdul Aziz, Abbas Saeed Hakeem
  • Patent number: 11680329
    Abstract: 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.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: June 20, 2023
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul Aziz, Syed Shaheen Shah, Zain Hassan Yamani
  • Publication number: 20220401927
    Abstract: A supported catalyst having rhodium particles with an average diameter of less than 1 nm disposed on a support material containing magnetic iron oxide (e.g. Fe3O4). A method of producing the supported catalyst and a process of reducing nitroarenes to corresponding aromatic amines employing the supported catalyst with a high product yield are also described. The supported catalyst may be recovered with ease using an external magnet and reused.
    Type: Application
    Filed: August 16, 2022
    Publication date: December 22, 2022
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: M. Nasiruzzaman SHAIKH, Md. Abdul AZIZ
  • Patent number: 11452992
    Abstract: A supported catalyst having rhodium particles with an average diameter of less than 1 nm disposed on a support material containing magnetic iron oxide (e.g. Fe3O4). A method of producing the supported catalyst and a process of reducing nitroarenes to corresponding aromatic amines employing the supported catalyst with a high product yield are also described. The supported catalyst may be recovered with ease using an external magnet and reused.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: September 27, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: M. Nasiruzzaman Shaikh, Md. Abdul Aziz
  • Patent number: 11345602
    Abstract: Jute stick/stalk can be used to prepared and carboxylated to yield useful activated carbons, e.g., for removing Pb2+ from drinking water. Such activated carbons can act as an inexpensive adsorbents using agricultural waste or by-products. Carboxylation of jute stick activated carbon (JSAC) can improve its efficiency for Pb2+ removal, e.g., from aqueous solutions, even if its BET surface area is reduced. Carboxylated JSAC (JSAC-COO?) can have surface areas around 615.3±0.5, 1, 2.5, 5, 10, 15, 20, or 25 m2/g. JSAC-COO? can treat varied Pb2+ concentrations, 10, 25 mg/L, etc., pHs, e.g., 4.0, 7.0, etc., temperatures, e.g., 15° C., 27° C., etc., and contact periods, e.g., 1, 5, 10, 15, 30, 60 minutes, etc., achieving up to 99.8% Pb2+ removal within 15 minutes of contact JSAC-COO? adsorption capacity can be >25.0 mg Pb2+/g, as well as other metal ions, with potential for water and/or gas treatment.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: May 31, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul Aziz, Shakhawat Hossain Chowdhury, Mohammad Abu Jafar Mazumder, Md Imran Rahman Chowdhury
  • Patent number: 11305995
    Abstract: A method of producing submicron carbon particles from oil ash. The method comprises pyrolyzing the oil ash to produce a pyrolyzed oil ash and milling the pyrolyzed oil ash to produce carbon particles having a mean particle size in the submicron regime. The method produces submicron carbon particles which have a very high carbon content (90 to 99 atom %) and a very low content of oxygen, the particles having a ratio of carbon to oxygen ratio of 10:1 to 99:1. The size of the particles may be controlled by the duration of the milling. The submicron carbon particles are devoid of functionalities containing carbon-oxygen double bonds as measured by Raman spectroscopy and X-ray photoelectron spectroscopy (XPS).
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: April 19, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul Aziz, Shaik Inayath Basha, Abbas Saeed Hakeem, Mohammed Maslehuddin, Shamsad Ahmad
  • Patent number: 11124415
    Abstract: 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.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: September 21, 2021
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Md. Abdul Aziz, Amar Kamal Mohamedkhair, Zain Hassan Yamani
  • Patent number: 11118108
    Abstract: Monodisperse carboxylate functionalized gold nanoparticles comprising a capping agent layer of pamoic acid and colloidal suspensions thereof are disclosed. These gold nanoparticles have an average particle size of greater than 15 nm or less than 8 nm and demonstrate significant fluorescent properties. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles wherein pamoic acid acts as both a reducing and capping agent and wherein the size of the particles can be controlled by the pH of the process is disclosed. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles utilizing seed mediated growth is disclosed.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 14, 2021
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul Aziz, Mohammed Nasiruzzaman Shaikh, Zain Hassan Yamani
  • Publication number: 20210276870
    Abstract: A method of producing submicron carbon particles from oil ash. The method comprises pyrolyzing the oil ash to produce a pyrolyzed oil ash and milling the pyrolyzed oil ash to produce carbon particles having a mean particle size in the submicron regime. The method produces submicron carbon particles which have a very high carbon content (90 to 99 atom %) and a very low content of oxygen, the particles having a ratio of carbon to oxygen ratio of 10:1 to 99:1. The size of the particles may be controlled by the duration of the milling. The submicron carbon particles are devoid of functionalities containing carbon-oxygen double bonds as measured by Raman spectroscopy and X-ray photoelectron spectroscopy (XPS).
    Type: Application
    Filed: March 9, 2020
    Publication date: September 9, 2021
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul AZIZ, Shaik BASHA, Abbas Saeed HAKEEM, Mohammed MASLEHUDDIN, Shamsad AHMAD
  • Publication number: 20210095384
    Abstract: 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.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 1, 2021
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul AZIZ, Syed Shaheen SHAH, Zain Hassan YAMANI
  • Publication number: 20210087062
    Abstract: 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.
    Type: Application
    Filed: September 25, 2019
    Publication date: March 25, 2021
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Md. Abdul AZIZ, Amar Kamal MOHAMEDKHAIR, Zain Hassan YAMANI
  • Publication number: 20210032113
    Abstract: Jute stick/stalk can be used to prepared and carboxylated to yield useful activated carbons, e.g., for removing Pb2+ from drinking water. Such activated carbons can act as an inexpensive adsorbents using agricultural waste or by-products. Carboxylation of jute stick activated carbon (JSAC) can improve its efficiency for Pb2+ removal, e.g., from aqueous solutions, even if its BET surface area is reduced. Carboxylated JSAC (JSAC-COO?) can have surface areas around 615.3±0.5, 1, 2.5, 5, 10, 15, 20, or 25 m2/g. JSAC-COO? can treat varied Pb2+ concentrations, 10, 25 mg/L, etc., pHs, e.g., 4.0, 7.0, etc., temperatures, e.g., 15° C., 27° C., etc., and contact periods, e.g., 1, 5, 10, 15, 30, 60 minutes, etc, achieving up to 99.8% Pb2+ removal within 15 minutes of contact JSAC-COO? adsorption capacity can be >25.0 mg Pb2+/g, as well as other metal ions, with potential for water and/or gas treatment.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 4, 2021
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Md. Abdul AZIZ, Shakhawat Hossain CHOWDHURY, Mohammad Abu Jafar MAZUMDER, Md lmran Rahman CHOWDHURY