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公开(公告)号:US10365242B2
公开(公告)日:2019-07-30
申请号:US15724747
申请日:2017-10-04
Inventor: Md. Abdul Aziz
IPC: G01N27/30 , C01B32/205 , G01N27/416 , G01N27/413 , C25B11/12 , C01B32/05
Abstract: An electrode that comprises a nanostructured material that comprises pyrolyzed date palm leaves that are obtained from a pyrolysis of an agro-waste containing date palm leaves in an inert gas and in a temperature range of 800 to 1600° C., an electrochemical cell thereof, and a method of determining a hydroquinone concentration in a hydroquinone-containing solution with the electrochemical cell. Various combinations of embodiments are also provided.
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公开(公告)号:US10161052B2
公开(公告)日:2018-12-25
申请号:US15048560
申请日:2016-02-19
Inventor: Md. Abdul Aziz , Mohammed Nasiruzzaman Shaikh , Zain Hassan Yamani , Wael Mahfoz , Fatai Olawale Bakare
Abstract: A method for manufacturing a palladium coated doped metal oxide conducting electrode including immersing a metal oxide conducting electrode into an aqueous solution having a palladium precursor salt to form the metal oxide conducting electrode having at least one surface coated with palladium precursor. To form a layer of palladium nanoparticles on the metal oxide conducting electrode the palladium precursor on the metal oxide conducting is reduced with a borohydride compound. The palladium nanoparticles on the metal oxide conducting electrode have an average diameter of 8 nm to 22 nm and are present on the surface of the metal oxide conducting electrode at a density from 1.5×10−3 Pd·nm−2 to 3.5×10−3 Pd·nm−2.
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公开(公告)号:US20240293807A1
公开(公告)日:2024-09-05
申请号:US18607139
申请日:2024-03-15
Inventor: M. Nasiruzzaman SHAIKH , S. M. Shakil HUSSAIN , Md. Abdul Aziz
CPC classification number: B01J31/1625 , B01J31/2414 , B01J35/23 , B01J35/393 , B01J37/16 , B01J2231/321 , B82Y30/00
Abstract: A method for making a magnetic-nanoparticle-supported catalyst includes reacting a ferrocenyl phosphine compound with an amino alcohol compound to form a ligand having a phosphine group, an amine group and at least one hydroxyl group; anchoring the ligand to a surface of magnetic nanoparticles via an oxygen atom of the hydroxyl group to form a ligand complex; combining the ligand complex with a metal precursor comprising Rh to bind the metal precursor with the ligand complex and form the magnetic-particle-supported catalyst. The magnetic-particle-supported catalyst is a Rh complex of magnetic-Fe3O4-nanoparticle-supported ferrocenyl phosphine catalyst.
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公开(公告)号:US11124415B2
公开(公告)日:2021-09-21
申请号:US16582748
申请日:2019-09-25
Inventor: Md. Abdul Aziz , Amar Kamal Mohamedkhair , Zain Hassan Yamani
Abstract: A method of preparing porous nitrogen-doped carbon nanosheets by pyrolysis of Albizia procera leaves. The nitrogen-doped carbon nanosheets display enhanced electrochemical properties including large surface area and specific capacitance. Electrodes coated with the nitrogen-doped carbon nanosheets are particularly suitable for use in supercapacitors and solar cells.
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公开(公告)号:US10463391B2
公开(公告)日:2019-11-05
申请号:US16151471
申请日:2018-10-04
Inventor: M. Nasiruzzaman Shaikh , Md. Abdul Aziz , Aasif Helal
IPC: A61B17/32 , A61B17/3207 , A61B17/22 , A61B17/00
Abstract: A functionalized magnetic nanoparticle including an organometallic sandwich compound and a magnetic metal oxide. The functionalized magnetic nanoparticle may be reacted with a metal precursor to form in a catalyst for various C—C bond forming reactions. The catalyst may be recovered with ease by attracting the catalyst with a magnet.
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公开(公告)号:US20190264342A1
公开(公告)日:2019-08-29
申请号:US15903732
申请日:2018-02-23
Inventor: Md. Abdul Aziz , Mohammed Ameeh Ahmed Qasem
Abstract: A method of making NiO nanoparticles is described, as well as a method of using NiO nanoparticles as an electrocatalyst component to a porous carbon electrode. The carbon electrode may be made of carbonized filter paper. Together, this carbon-supported NiO electrode may be used for water electrolysis. Using a pamoic acid salt in the NiO nanoparticle synthesis leads to smaller and monodisperse nanoparticles, which support higher current densities.
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公开(公告)号:US10370397B2
公开(公告)日:2019-08-06
申请号:US16151446
申请日:2018-10-04
Inventor: M. Nasiruzzaman Shaikh , Md. Abdul Aziz , Aasif Helal
IPC: C07F15/02 , C07C45/50 , B01J31/28 , B01J31/22 , B01J35/00 , C07C41/30 , C07C201/12 , C07F17/02 , C07C2/86 , C07C17/269 , B01J37/34 , B01J23/745 , B01J23/89 , B01J37/02 , B01J31/16 , B01J31/24
Abstract: A functionalized magnetic nanoparticle including an organometallic sandwich compound and a magnetic metal oxide. The functionalized magnetic nanoparticle may be reacted with a metal precursor to form a catalyst for various C—C bond forming reactions. The catalyst may be recovered with ease by attracting the catalyst with a magnet.
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公开(公告)号:US20190112525A1
公开(公告)日:2019-04-18
申请号:US16222748
申请日:2018-12-17
Inventor: Md. Abdul Aziz , Mohammed Nasiruzzaman Shaikh , Zain Hassan Yamani
Abstract: Monodisperse carboxylate functionalized gold nanoparticles comprising a capping agent layer of pamoic acid and colloidal suspensions thereof are disclosed. These gold nanoparticles have an average particle size of greater than 15 nm or less than 8 nm and demonstrate significant fluorescent properties. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles wherein pamoic acid acts as both a reducing and capping agent and wherein the size of the particles can be controlled by the pH of the process is disclosed. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles utilizing seed mediated growth is disclosed.
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公开(公告)号:US10179877B2
公开(公告)日:2019-01-15
申请号:US14991360
申请日:2016-01-08
Inventor: Md. Abdul Aziz , Mohammed Nasiruzzaman Shaikh , Zain Hassan Yamani
Abstract: Monodisperse carboxylate functionalized gold nanoparticles comprising a capping agent layer of pamoic acid and colloidal suspensions thereof are disclosed. These gold nanoparticles have an average particle size of greater than 15 nm or less than 8 nm and demonstrate significant fluorescent properties. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles wherein pamoic acid acts as both a reducing and capping agent and wherein the size of the particles can be controlled by the pH of the process is disclosed. In addition, a method for the size controlled preparation of these monodisperse carboxylate functionalized gold nanoparticles utilizing seed mediated growth is disclosed.
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公开(公告)号:US12283423B2
公开(公告)日:2025-04-22
申请号:US18363389
申请日:2023-08-01
Inventor: Md. Abdul Aziz , Syed Shaheen Shah , Yaqub Alhussain Mahnashi
Abstract: The present disclosure provides an asymmetric supercapacitor that includes a negative electrode, a positive electrode, an ionic liquid electrolyte, and a separator. The negative electrode includes a tomato leaf activated carbon having a hierarchical porosity disposed on a first carbon cloth. The positive electrode includes a polyaniline disposed on a second carbon cloth; an ionic liquid electrolyte. The separator is located between the positive electrode and the negative electrode, and the ionic liquid electrolyte is present in and on the separator. The supercapacitor may be implemented in a heart pulse rate monitoring system.
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