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    Inorganic gel for controlled releasing of fragrance and disinfectant
    5.
    发明授权
    Inorganic gel for controlled releasing of fragrance and disinfectant 有权

    公开(公告)号：US10507257B2

    公开(公告)日：2019-12-17

    申请号：US16175031

    申请日：2018-10-30

    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： King Lun Yeung ,  Wei Han ,  Shengli Cao ,  Wai Kwong Ching

    IPC: A61L9/04 ,  A01N25/04 ,  A01N65/00 ,  A01N65/28 ,  A01N65/36 ,  A01N65/48 ,  A61L9/012

    Abstract: A gel composition for air freshening or disinfecting, comprising a silicon alkoxide or colloidal silica, a volatile or gaseous fragrance and/or disinfectant, water, an acid or base catalyst, a water-soluble solvent, and optionally other volatile components and additives, and a method for preparing the same. The gel can be transparent or colored, has a homogeneous texture and a soft to rigid structure, and contains volatile or gaseous components from 0 vol % to 85 vol % for scented materials (fragrance and oils) and/or 0-8000 ppm of disinfectant, which are released at a steady rate under ambient conditions, controlled by the shape and opening of the gel container. Botanicals or plastic decorations may be added into the gel to improve its aesthetic appeal. The preparation method is easier and requires less energy consumption and the gel is used as an air freshener or disinfectant.

    Moisture-resistant catalyst for air pollution remediation and method of making the same
    6.
    发明授权
    Moisture-resistant catalyst for air pollution remediation and method of making the same 有权

    公开(公告)号：US11511261B2

    公开(公告)日：2022-11-29

    申请号：US16825254

    申请日：2020-03-20

    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： King Lun Yeung ,  Wei Han ,  Hao Chen

    IPC: B01D53/86 ,  B01J23/22 ,  B01D53/02 ,  B01J37/02 ,  B01J37/08 ,  B01J35/10 ,  B01J21/08

    Abstract: The moisture-resistant catalyst for air pollution remediation is a catalyst with moisture-resistant properties, and which is used for removing nitrogen compound pollutants, such as ammonia (NH3), from air. The moisture-resistant catalyst for air pollution remediation includes at least one metal oxide catalyst, at least one inorganic oxide support for supporting the at least one metal oxide catalyst, and a porous framework for immobilizing the at least one metal oxide catalyst and the at least one inorganic oxide support, where the porous framework is moisture-resistant. As non-limiting examples, the at least one metal oxide catalyst may be supported on the at least one inorganic oxide support by precipitation, impregnation, dry milling, ion-exchange or combinations thereof. The at least one metal oxide catalyst supported on the at least one inorganic oxide support may be physically embedded in the porous framework.

    Graphene-based self-humidifying membrane and self-humidifying fuel cell
    10.
    发明授权
    Graphene-based self-humidifying membrane and self-humidifying fuel cell 有权
    石墨烯基自加湿膜和自加湿燃料电池

    公开(公告)号：US09048471B2

    公开(公告)日：2015-06-02

    申请号：US13966972

    申请日：2013-08-14

    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： King Lun Yeung ,  Wei Han ,  Ho Yee Timothy Poon

    IPC: H01M4/02 ,  H01M8/04 ,  H01M8/10

    CPC classification number: H01M8/04291 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1051 ,  H01M8/1067 ,  H01M2008/1095 ,  Y02E60/521

    Abstract: A self-humidifying fuel cell is made by preparing a porous substrate, coating the substrate with a zeolitic material (or a graphene derivative) and filling the pores with a mixture of graphene derivative and proton-conducting material (or a proton-conducting material). The coating of the substrate includes selecting a zeolitic material, and applying coating on the pore walls and surface of the porous substrate, to form zeolitic material-coated pores. The resulting composite material is used as a self-humidifying proton-conducting membrane in a fuel cell.

    Abstract translation: 通过制备多孔基材制备自加湿燃料电池，用沸石材料（或石墨烯衍生物）涂覆基材并用石墨烯衍生物和质子传导材料（或质子传导材料）的混合物填充孔， 。 基材的涂层包括选择沸石材料，并在多孔基材的孔壁和表面上施加涂层，以形成沸石材料涂覆的孔。 所得复合材料用作燃料电池中的自加湿质子传导膜。

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