公开(公告)号：US20230400409A1

公开(公告)日：2023-12-14

申请号：US17840045

申请日：2022-06-14

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Aasif HELAL ,  Muhammed NAEEM ,  Mohammed FETTOUHI ,  Md. Hasan ZAHIR

IPC: G01N21/3577

CPC classification number: G01N21/3577 ,  G01N2021/174

Abstract: A method of detecting Hg2+ ions in an aqueous solution is described. The method includes contacting the aqueous solution with a metal-organic framework (MOF) chemosensor composite to form a mixture and monitoring a change in an absorption and/or a fluorescence profile of the MOF chemosensor composite in the mixture to determine a presence or absence of Hg2+ ions in the aqueous solution. The MOF chemosensor composite includes fluorescein hydrazide (FH); and a MOF, including nickel as a metal ion and at least one trimesic acid (BTC) ligand. A hydrazide group on the fluorescein hydrazide coordinates to the metal ion of the MOF.

公开(公告)号：US20170239624A1

公开(公告)日：2017-08-24

申请号：US15176386

申请日：2016-06-08

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Md. Hasan ZAHIR ,  Alhooshani KHALID

IPC: B01D69/12 ,  B01D69/04 ,  B01D69/10 ,  B01D67/00 ,  B01D71/56 ,  B01D71/38 ,  B01D71/52 ,  B01D71/62 ,  B01D71/40 ,  B01D53/22 ,  B01D71/02

CPC classification number: B01D69/12 ,  B01D53/228 ,  B01D67/0093 ,  B01D69/04 ,  B01D69/10 ,  B01D71/025 ,  B01D71/027 ,  B01D71/38 ,  B01D71/40 ,  B01D71/52 ,  B01D71/56 ,  B01D71/62 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/108 ,  B01D2257/11 ,  B01D2257/502 ,  B01D2323/00 ,  B01D2323/08 ,  B01D2325/02 ,  B01D2325/20

Abstract: A semi-porous composite membrane and a method of manufacturing the semi-porous composite membrane. The semi-porous composite membrane includes a base supporting substrate comprising α-Al2O3, an outer layer comprising silica, and an intermediate layer comprising crystalline fibers of boehmite, and at least one of a secondary metal oxide and a synthetic polymer, wherein the intermediate layer is disposed between the base supporting substrate and the outer layer. The crystalline fibers of boehmite are a length of 5-150 nm. The semi-porous composite membrane may be employed in membrane reactors.

公开(公告)号：US20240274740A1

公开(公告)日：2024-08-15

申请号：US18606461

申请日：2024-03-15

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Kashif IRSHAD ,  Md. Hasan ZAHIR

IPC: H01L31/0525 ,  H10N10/10 ,  H10N10/82

CPC classification number: H01L31/0525 ,  H10N10/10 ,  H10N10/82

Abstract: A thermal management device for a photovoltaic panel includes a phase change material layer attached to a back side of the photovoltaic panel. The thermal management device includes a Seebeck thermoelectric generator having a first surface attached to the phase change material layer. The thermal management further device includes a heat sink attached to a second surface of the Seebeck thermoelectric generator. The heat sink is configured with a sinuous coil, a water inlet port and a water outlet port connected to the sinuous coil, and a plurality of heat fins. The thermal management further device includes a casing box configured to enclose its various components, and a glass cover attached to the casing box and configured to cover a top surface of the photovoltaic panel.

公开(公告)号：US20200270534A1

公开(公告)日：2020-08-27

申请号：US16282398

申请日：2019-02-22

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Mohammad Mozahar HOSSAIN ,  Md. Hasan ZAHIR ,  Tareq Ali Salem AL-ATTAS

IPC: C10G47/02 ,  C10G47/26 ,  B01J31/06

Abstract: A method of utilizing a catalytic complex having a transition metal (e.g. nickel, cobalt) ion coordinated to a calixarene ligand in upgrading hydrocarbon feedstocks containing C20 through C50 hydrocarbons (e.g. vacuum gas oil) to produce light petroleum products (e.g. medium distillate, naphtha) is specified. A method of using the catalytic complex with a supported co-catalyst to synergistically hydrocrack the feedstocks is also provided.

公开(公告)号：US20240266456A1

公开(公告)日：2024-08-08

申请号：US18606427

申请日：2024-03-15

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Kashif IRSHAD ,  Md. Hasan ZAHIR

IPC: H01L31/0525 ,  H10N10/10 ,  H10N10/82

CPC classification number: H01L31/0525 ,  H10N10/10 ,  H10N10/82

Abstract: A thermal management device for a photovoltaic panel includes a phase change material layer attached to a back side of the photovoltaic panel. The thermal management device includes a Seebeck thermoelectric generator having a first surface attached to the phase change material layer. The thermal management further device includes a heat sink attached to a second surface of the Seebeck thermoelectric generator. The heat sink is configured with a sinuous coil, a water inlet port and a water outlet port connected to the sinuous coil, and a plurality of heat fins. The thermal management further device includes a casing box configured to enclose its various components, and a glass cover attached to the casing box and configured to cover a top surface of the photovoltaic panel.

公开(公告)号：US20210147736A1

公开(公告)日：2021-05-20

申请号：US16684738

申请日：2019-11-15

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Md. Hasan ZAHIR ,  Mohammed Mozahar HOSSAIN ,  Md. SHAFIULLAH ,  Abbas Saeed HAKEEM

IPC: C09K5/06 ,  F28D20/02

Abstract: A composite phase-change material containing a hierarchically porous Ca1-xMgxCO3 and having pores loaded with a phase change material is described. The heat storage material has a latent heat of melting 123 to 221 J/g, a latent heat of freezing of 107 to 201 J/g, and a thermal conductivity of 0.22 to 0.45 W·m−1·K−1. The phase change material may be polyethylene glycol, and the polyethylene glycol does not leak from the pores of the hierarchically porous Ca1-xMgCO3 when heating or cooling over phase transitions.

公开(公告)号：US20180161734A1

公开(公告)日：2018-06-14

申请号：US15889705

申请日：2018-02-06

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Md. Hasan ZAHIR ,  Alhooshani Khalid

IPC: B01D69/12 ,  B01D71/56 ,  B01D71/40 ,  B01D71/62 ,  B01D71/52 ,  B01D71/38 ,  B01D71/02 ,  B01D67/00 ,  B01D69/10 ,  B01D69/04 ,  B01D53/22

CPC classification number: B01D69/12 ,  B01D53/228 ,  B01D67/0093 ,  B01D69/04 ,  B01D69/10 ,  B01D71/025 ,  B01D71/027 ,  B01D71/38 ,  B01D71/40 ,  B01D71/52 ,  B01D71/56 ,  B01D71/62 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/108 ,  B01D2257/11 ,  B01D2257/502 ,  B01D2323/00 ,  B01D2323/08 ,  B01D2325/02 ,  B01D2325/20

Abstract: A semi-porous composite membrane and a method of manufacturing the semi-porous composite membrane. The semi-porous composite membrane includes a base supporting substrate comprising α-Al2O3, an outer layer comprising silica, and an intermediate layer comprising crystalline fibers of boehmite, and at least one of a secondary metal oxide and a synthetic polymer, wherein the intermediate layer is disposed between the base supporting substrate and the outer layer. The crystalline fibers of boehmite are a length of 5-150 nm. The semi-porous composite membrane may be employed in membrane reactors.

公开(公告)号：US20250035546A1

公开(公告)日：2025-01-30

申请号：US18913676

申请日：2024-10-11

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Aasif HELAL ,  Muhammed NAEEM ,  Mohammed FETTOUHI ,  Md. Hasan ZAHIR

IPC: G01N21/3577 ,  G01N21/17

Abstract: A method of detecting Hg2+ ions in an aqueous solution is described. The method includes contacting the aqueous solution with a metal-organic framework (MOF) chemosensor composite to form a mixture and monitoring a change in an absorption and/or a fluorescence profile of the MOF chemosensor composite in the mixture to determine a presence or absence of Hg2+ ions in the aqueous solution. The MOF chemosensor composite includes fluorescein hydrazide (FH); and a MOF, including nickel as a metal ion and at least one trimesic acid (BTC) ligand. A hydrazide group on the fluorescein hydrazide coordinates to the metal ion of the MOF.

公开(公告)号：US20200181345A1

公开(公告)日：2020-06-11

申请号：US16794662

申请日：2020-02-19

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Md. Hasan ZAHIR ,  Mohammad Mizanur RAHMAN

IPC: C08J7/14 ,  C08K3/26 ,  C08L71/02

Abstract: A heat energy storage system may have a shape-stabilized composite prepared using an easy impregnation method involving a porous Ca2+-doped MgCO3 matrix and PEG as the functional phase. The heat storage capability, microstructures, and interactions with the PEG/CaMgCO3 composite can be characterized by DSC, SEM imaging, FT-IR spectroscopy, and TGA. Likely because of the synergistic phase change effect of CaMgCO3 and PEG, the PEG/CaMgCO3 composites can have high thermal enthalpies, and their enthalpy efficiencies are substantially higher than those of traditional shape stabilized PCMs. The functional material PEG can permeate porous CaMgCO3 matrices under capillary action. Liquid PEG can be stabilized within the porous matrix, and/or the CaMgCO3 matrix can improve the thermal stability of the PEG. The high heat energy storage properties and good thermal stability of such organic-inorganic composites offers utility in a range of applications, including thermal energy storage.

公开(公告)号：US20170348633A1

公开(公告)日：2017-12-07

申请号：US15683225

申请日：2017-08-22

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Md. Hasan ZAHIR

IPC: B01D53/22 ,  B01D69/12 ,  B01D69/10 ,  B01D71/02

CPC classification number: B01D53/228 ,  B01D67/0048 ,  B01D69/02 ,  B01D69/10 ,  B01D69/12 ,  B01D71/024 ,  B01D71/027 ,  B01D2053/221 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2257/102 ,  B01D2257/504 ,  B01D2323/08 ,  B01D2323/12 ,  B01D2323/48 ,  B01D2325/04 ,  Y02C10/10

Abstract: A nanocomposite membrane including an α-Al2O3 membrane support, a γ-Al2O3 intermediate layer that is 300-1200 nm thick and coats a surface of the membrane support, and a nanocomposite layer including SiO2 and Y2O3 that is 25-150 nm thick and coats a surface of the intermediate layer, wherein the nanocomposite layer is porous with an average largest radius micropore of 0.2-0.6 nm. A method of manufacturing the nanocomposite membrane, whereby the membrane support is coated with the γ-Al2O3, a silica source is hydrolyzed with a mixture of water, an alcohol solvent, and a Y source with a sol-gel technique to yield a Si/Y sol-gel, the membrane support is dip coated with the Si/Y sol-gel, and the nanocomposite membrane is calcined. A method of separating a mixture of gas, whereby the mixture of gas is introduced into a permeance cell and fed through the nanocomposite membrane.