Patents by Inventor Ibrahim M Al-Najjar

Ibrahim M Al-Najjar 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).

  • Combination catalysts based on iron for the substantial synthesis of multi-walled carbon nanotubes by chemical vapor deposition
    Patent number: 8388923
    Abstract: Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: March 5, 2013
    Assignee: King Abdulaziz City for Science and Technology
    Inventors: Mohammed Abdullah Bahattab, Abdulaziz A Bagabas, Ibrahim M Al-Najjar
  • Combination catalysts based on iron for the substantial synthesis of multi-walled carbon nanotubes by chemical vapor deposition
    Patent number: 8252713
    Abstract: Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: August 28, 2012
    Assignee: King Abdulaziz City Science and Technology
    Inventors: Mohammed Abdullah Bahattab, Ibrahim M Al-Najjar, Abdulaziz A Bagabas
  • Combination catalysts based on iron for the substantial synthesis of multi-walled carbon nanotubes by chemical vapor deposition
    Patent number: 8236272
    Abstract: Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: August 7, 2012
    Assignee: King Abdulaziz City for Science and Technology
    Inventors: Mohammed Abdullah Bahattab, Ibrahim M Al-Najjar, Abdulaziz A Bagabas
  • NOVEL COMBINATION CATALYSTS BASED ON IRON FOR THE SUBSTANTIAL SYNTHESIS OF MULTI-WALLED CARBON NANOTUBES BY CHEMICAL VAPOR DEPOSITION
    Publication number: 20120177545
    Abstract: Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.
    Type: Application
    Filed: March 9, 2012
    Publication date: July 12, 2012
    Applicant: King Abdulaziz City Science and Technology
    Inventors: MOHAMMED ABDULLAH BAHATTAB, IBRAHIM M. AL-NAJJAR, ABDULAZIZ A. BAGABAS
  • NOVEL COMBINATION CATALYSTS BASED ON IRON FOR THE SUBSTANTIAL SYNTHESIS OF MULTI-WALLED CARBON NANOTUBES BY CHEMICAL VAPOR DEPOSITION
    Publication number: 20120114550
    Abstract: Methods and systems of preparing a catalyst to be used in the synthesis of carbon nanotubes through Chemical Vapor Depositions are disclosed. The method may include a mixture comprising at least one of an iron catalyst source and a catalyst support. In another aspect, a method of synthesizing multi-walled carbon nanotubes using the catalyst is disclosed. The method may include driving a reaction in a CVD furnace and generating at least one multi-walled carbon nanotube through the reaction. The method also includes depositing the catalyst on the CVD furnace and driving a carbon source with a carrier gas to the CVD furnace. The method further includes decomposing the carbon source in the presence of the catalyst under a sufficient gas pressure for a sufficient time to grow at least one multi-walled carbon nanotube.
    Type: Application
    Filed: June 2, 2011
    Publication date: May 10, 2012
    Applicant: King Abdulaziz City Science and Technology
    Inventors: Mohammed Abdullah Bahattab, Ibrahim M. Al-Najjar, Abdulaziz A. Bagabas