公开(公告)号：US20170113179A1

公开(公告)日：2017-04-27

申请号：US14920483

申请日：2015-10-22

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Md. Hasan ZAHIR

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

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.

公开(公告)号：US20240266457A1

公开(公告)日：2024-08-08

申请号：US18606549

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：US20240018404A1

公开(公告)日：2024-01-18

申请号：US17864056

申请日：2022-07-13

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Md. Hasan ZAHIR ,  Kashif IRSHAD ,  Amjad ALI ,  Ridha Ben Ali Ben MANSOUR ,  Hafiz ALI

IPC: C09K5/06

CPC classification number: C09K5/063

Abstract: A method includes mixing a dopant salt of at least one of cobalt, nickel, zinc, and scandium with a silicate, in a solvent, to form a first solution. The method includes mixing the first solution with a solvent mixture to form a second solution. The method further includes mixing the second solution with an acid to form an acid solution. The method further includes adding a catalyst and a polymer to the acid solution to form the doped PCM. The doped PCM includes the catalyst, the polymer, at least one of cobalt, nickel, zinc, and scandium, and SiO2.

公开(公告)号：US20210102106A1

公开(公告)日：2021-04-08

申请号：US16592292

申请日：2019-10-03

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Md. Hasan ZAHIR ,  Mohammed Mozahar HOSSAIN ,  Mohammad Mizanur RAHMAN ,  Salhi BILLEL

IPC: C09K5/06 ,  F28D20/02

Abstract: A heat storage material comprising mesoporous Mg(OH)2 and having pores loaded with a phase change material is described. The heat storage material has a cooling latent heat of 130-140 J/g, and a solidification enthalpy of 120-135 J/g, and a thermal conductivity of 25-45 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 mesoporous Mg(OH)2 when heating or cooling over phase transitions.

公开(公告)号：US20200306725A1

公开(公告)日：2020-10-01

申请号：US16363353

申请日：2019-03-25

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Md. Hasan ZAHIR

IPC: B01J20/28 ,  B01J20/04 ,  B01J20/02 ,  C01F17/00

Abstract: Nanosheets of Ca2+ and Y3+, with CO32− in the interlayer with a uniform diameter and lengths of several tens of microns have been successfully synthesized in a hydrotalcite layer structure (a layered double hydroxide), using a hydrothermal method. The formation mechanism of lamellar CaY—CO32− layered double hydroxides (LDHs) depends on the molar ratio of Ca and Y and the reaction time and temperature. The resulting LDH materials exhibit excellent affinity and selectivity for heavy transition metal and metalloid ions.

公开(公告)号：US20200254361A1

公开(公告)日：2020-08-13

申请号：US16273206

申请日：2019-02-12

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Md. Hasan ZAHIR ,  Shakhawat CHOWDHURY ,  Khalid ALHOOSHANI

IPC: B01D11/04 ,  C02F1/26

Abstract: A liquid-liquid extraction method for the removal of metal ions from contaminated water using calix[n]arene compound and a nitrogen base is disclosed. The method is particularly useful for removal of transition metal ions from contaminated water.

公开(公告)号：US20190270076A1

公开(公告)日：2019-09-05

申请号：US16392029

申请日：2019-04-23

Applicant: King Fahd University of Petroleum and Minerals

Inventor： Md. Hasan ZAHIR

IPC: B01J27/236 ,  B01D53/86 ,  B01J35/00 ,  B01J37/10 ,  B01J37/00 ,  B01D53/94 ,  C01F17/00

Abstract: A hydrothermal method of preparing uniform, monodisperse ceramic lanthanum hydroxyl carbonate (LaCO3OH) having cherry-blossom-like nanogears and/or nanocubes is described. The method produced a hexagonal crystal with a crystal lattice in which at least on lanthanum ion is substituted with calcium ion. The ceramic nanoparticles produced by the method are good catalyst for the reduction of nitrogen oxides with a hydrocarbon. A method of reducing exhaust gases is described.