Patents by Inventor Qingzhe ZHANG

Qingzhe ZHANG 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).

  • Metal-free few-layer phosphorous nanomaterial: method for its preparation and use thereof
    Patent number: 12214336
    Abstract: A method for preparing a metal-free few-layer phosphorous nanomaterial. The method comprises an ice-assisted exfoliation process (or solvent ice-assisted exfoliation process). The method allows for the preparation of a few-layer phosphorous nanomaterial with improved yield and reduced duration and exfoliation power. The few-layer phosphorous nanomaterial is used in the preparation of a photocatalyst. The photocatalyst exhibits a long-term stability, high photocatalytic H2 evolution efficiency from water, and good stability under visible light irradiation.
    Type: Grant
    Filed: February 15, 2024
    Date of Patent: February 4, 2025
    Assignee: INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Qingzhe Zhang, Dongling Ma, Mohamed Chaker
  • METAL-FREE FEW-LAYER PHOSPHOROUS NANOMATERIAL: METHOD FOR ITS PREPARATION AND USE THEREOF
    Publication number: 20240307857
    Abstract: A method for preparing a metal-free few-layer phosphorous nanomaterial. The method comprises an ice-assisted exfoliation process (or solvent ice-assisted exfoliation process). The method allows for the preparation of a few-layer phosphorous nanomaterial with improved yield and reduced duration and exfoliation power. The few-layer phosphorous nanomaterial is used in the preparation of a photocatalyst. The photocatalyst exhibits a long-term stability, high photocatalytic H2 evolution efficiency from water, and good stability under visible light irradiation.
    Type: Application
    Filed: February 15, 2024
    Publication date: September 19, 2024
    Inventors: Qingzhe ZHANG, Dongling MA, Mohamed CHAKER
  • METAL-FREE FEW-LAYER PHOSPHOROUS NANOMATERIAL: METHOD FOR ITS PREPARATION AND USE THEREOF
    Publication number: 20210362135
    Abstract: A method for preparing a metal-free few-layer phosphorous nanomaterial. The method comprises an ice-assisted exfoliation process (or solvent ice-assisted exfoliation process). The method allows for the preparation of a few-layer phosphorous nanomaterial with improved yield and reduced duration and exfoliation power. The few-layer phosphorous nanomaterial is used in the preparation of a photocatalyst. The photocatalyst exhibits a long-term stability, high photocatalytic H2 evolution efficiency from water, and good stability under visible light irradiation.
    Type: Application
    Filed: June 10, 2019
    Publication date: November 25, 2021
    Inventors: Qingzhe ZHANG, Dongling MA, Mohamed CHAKER