Patents by Inventor Elham Shafik Aazam

Elham Shafik Aazam 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).

  • Method of performing coupling reactions
    Patent number: 11027270
    Abstract: A method of preparing an amalgamated transition metal layered double hydroxide (LDH)@Y-zeolite hybrid catalyst is provided. The method includes combining a transition metal with aluminum nitrate and precipitating using an alkali under ultrasound irradiation and an inert atmosphere to form a transition metal-containing LDH catalyst. A Y-zeolite is pretreated by an ion exchange process utilizing ammonia prior to calcination at temperature (250-1000° C.) under an inert atmosphere to form an H—Y-zeolite. Followed by refluxing the transition metal-containing LDH catalyst together with the H—Y-zeolite at 50° C. for a predetermined time to form a precipitate. The precipitate is filtering and washing with distilled water to obtain the amalgamated transitional metal LDH@Y-zeolite hybrid catalyst.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: June 8, 2021
    Assignee: King Abdulaziz University
    Inventors: Mohamed Mokhtar Mohamed Mostafa, Ghalia Saeed Alzhrani, Elham Shafik Aazam, Tamer Said Sayed Saleh