Patents by Inventor SALEEM UR RAHMAN
SALEEM UR RAHMAN 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).
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Patent number: 9662635Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.Type: GrantFiled: November 12, 2014Date of Patent: May 30, 2017Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Saleem Ur Rahman, Shakeel Ahmed, Mohammad Mozahar Hossain, Shahid Muhammad Bashir
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Patent number: 9333487Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.Type: GrantFiled: November 12, 2014Date of Patent: May 10, 2016Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Saleem Ur Rahman, Shakeel Ahmed, Mohammad Mozahar Hossain, Shahid Muhammad Bashir
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Patent number: 9109293Abstract: An electrocatalyst for the electrochemical conversion of carbon dioxide to hydrocarbons is provided. The electrocatalyst for the electrochemical conversion of carbon dioxide includes copper material supported on carbon nanotubes. The copper material may be pure copper, copper and ruthenium, copper and iron, or copper and palladium supported on the carbon nanotubes. The electrocatalyst is prepared by dissolving copper nitrate trihydrate in deionized water to form a salt solution. Carbon nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the deionized water, either iron nitrate monohydrate, ruthenium chloride or palladium chloride may also be dissolved in the deionized water to form the salt solution.Type: GrantFiled: July 25, 2014Date of Patent: August 18, 2015Assignees: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGYInventors: Saleem Ur Rahman, Syed Mohammed Javaid Zaidi, Shakeel Ahmed, Sk Safdar Hossain
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Patent number: 9099752Abstract: The electrocatalyst for the electrochemical conversion of carbon dioxide includes a copper material supported on titania nanotubes. The copper material may be pure copper, copper and ruthenium, or copper and iron supported on the titania nanotubes. The electrocatalyst is prepared by first dissolving copper nitrate trihydrate in deionized water to form a salt solution. Titania nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the volume of deionized water, either iron nitrate monohydrate or ruthenium chloride may also be dissolved in the deionized water to form the salt solution.Type: GrantFiled: July 24, 2014Date of Patent: August 4, 2015Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Saleem Ur Rahman, Syed Mohammed Javaid Zaidi, Shakeel Ahmed, Sk Safdar Hossain
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Publication number: 20150072854Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.Type: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Inventors: SALEEM UR RAHMAN, SHAKEEL AHMED, MOHAMMAD MOZAHAR HOSSAIN, SHAHID MUHAMMAD BASHIR
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Publication number: 20150072853Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.Type: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Inventors: SALEEM UR RAHMAN, SHAKEEL AHMED, MOHAMMAD MOZAHAR HOSSAIN, SHAHID MUHAMMAD BASHIR
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Publication number: 20140336036Abstract: The electrocatalyst for the electrochemical conversion of carbon dioxide includes a copper material supported on titania nanotubes. The copper material may be pure copper, copper and ruthenium, or copper and iron supported on the titania nanotubes. The electrocatalyst is prepared by first dissolving copper nitrate trihydrate in deionized water to form a salt solution. Titania nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the volume of deionized water, either iron nitrate monohydrate or ruthenium chloride may also be dissolved in the deionized water to form the salt solution.Type: ApplicationFiled: July 24, 2014Publication date: November 13, 2014Inventors: SALEEM UR RAHMAN, SYED MOHAMMED JAVAID ZAIDI, SHAKEEL AHMED, SK SAFDAR HOSSAIN
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Publication number: 20140336037Abstract: An electrocatalyst for the electrochemical conversion of carbon dioxide to hydrocarbons is provided. The electrocatalyst for the electrochemical conversion of carbon dioxide includes copper material supported on carbon nanotubes. The copper material may be pure copper, copper and ruthenium, copper and iron, or copper and palladium supported on the carbon nanotubes. The electrocatalyst is prepared by dissolving copper nitrate trihydrate in deionized water to form a salt solution. Carbon nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the deionized water, either iron nitrate monohydrate, ruthenium chloride or palladium chloride may also be dissolved in the deionized water to form the salt solution.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Inventors: SALEEM UR RAHMAN, SYED MOHAMMED JAVAID ZAIDI, SHAKEEL AHMED, SK SAFDAR HOSSAIN
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Patent number: 8778829Abstract: The active methanol electro-oxidation catalysts include nano-oxides of transition metals (i.e., iron, cobalt and nickel) and platinum-ruthenium alloy nano-particles. The nano-oxides of the transition metals are dispersed during synthesis of a support material, such as mesoporous carbon. The catalyst includes a support material formed from mesoporous carbon, a nano-oxide of a transition metal dispersed in the support material, and platinum-ruthenium alloy nano-particles supported on the nano-oxide of the transition metal, the platinum-ruthenium alloy nano-particles (in a 1:1 molar ratio) forming about 15 wt % of the methanol electro-oxidation catalyst, the transition metals forming about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance of about 70 wt % of the methanol electro-oxidation catalyst.Type: GrantFiled: January 3, 2012Date of Patent: July 15, 2014Assignee: King Fahd University of Petroleum and MineralsInventors: Syed Mohammed Javaid Zaidi, Saleem Ur Rahman, Shakeel Ahmed, Mukhtar Bello
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Publication number: 20140174916Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.Type: ApplicationFiled: December 26, 2012Publication date: June 26, 2014Applicants: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Saleem Ur RAHMAN, Shakeel AHMED, Mohammad Mozahar HOSSAIN, Shahid Muhammad BASHIR
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Patent number: 8759247Abstract: The methanol electro-oxidation catalysts include nano-oxides of rare earth metals (i.e., cesium, praseodymium, neodymium and samarium) and platinum nano-particles. The nano-oxides of the rare earth metals are dispersed during synthesis of a support material, preferably formed from mesoporous carbon. The platinum nano-particles form between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, the rare earth metal forms between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance (between about 70 wt % and about 80 wt %) of the methanol electro-oxidation catalyst.Type: GrantFiled: December 27, 2011Date of Patent: June 24, 2014Assignee: King Fahd University of Petroleum and MineralsInventors: Syed Mohammed Javaid Zaidi, Saleem Ur Rahman, Shakeel Ahmed, Mukhtar Bello
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Publication number: 20130256124Abstract: The electrocatalyst for the electrochemical conversion of carbon dioxide includes a copper material supported on titania nanotubes. The copper material may be pure copper, copper and ruthenium, or copper and iron supported on the titania nanotubes. The electrocatalyst is prepared by first dissolving copper nitrate trihydrate in deionized water to form a salt solution. Titania nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the volume of deionized water, either iron nitrate to monohydrate or ruthenium chloride may also be dissolved in the deionized water to form the salt solution.Type: ApplicationFiled: April 2, 2012Publication date: October 3, 2013Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SALEEM UR RAHMAN, SYED MOHAMMED JAVAID ZAIDI, SHAKEEL AHMED, SK SAFDAR HOSSAIN
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Publication number: 20130256123Abstract: An electrocatalyst for the electrochemical conversion of carbon dioxide to hydrocarbons is provided. The electrocatalyst for the electrochemical conversion of carbon dioxide includes copper material supported on carbon nanotubes. The copper material may be pure copper, copper and ruthenium, copper and iron, or copper and palladium supported on the carbon nanotubes. The electrocatalyst is prepared by dissolving copper nitrate trihydrate in deionized water to form a salt solution. Carbon nanotubes are then added to the salt solution to form a suspension, which is then heated. A urea solution is added to the suspension to form the electrocatalyst in solution. The electrocatalyst is then removed from the solution. In addition to dissolving the copper nitrate trihydrate in the deionized water, either iron nitrate monohydrate, ruthenium chloride or palladium chloride may also be dissolved in the deionized water to form the salt solution.Type: ApplicationFiled: April 2, 2012Publication date: October 3, 2013Applicants: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SALEEM UR RAHMAN, SYED MOHAMMED JAVAID ZAIDI, SHAKEEL AHMED, SK SAFDAR HOSSAIN
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Publication number: 20130172174Abstract: The active methanol electro-oxidation catalysts include nano-oxides of transition metals (i.e., iron, cobalt and nickel) and platinum-ruthenium alloy nano-particles. The nano-oxides of the transition metals are dispersed during synthesis of a support material, such as mesoporous carbon. The catalyst includes a support material formed from mesoporous carbon, a nano-oxide of a transition metal dispersed in the support material, and platinum-ruthenium alloy nano-particles supported on the nano-oxide of the transition metal, the platinum-ruthenium alloy nano-particles (in a 1:1 molar ratio) forming about 15 wt % of the methanol electro-oxidation catalyst, the transition metals forming about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance of about 70 wt % of the methanol electro-oxidation catalyst.Type: ApplicationFiled: January 3, 2012Publication date: July 4, 2013Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SYED MOHAMMED JAVAID ZAIDI, SALEEM UR RAHMAN, SHAKEEL AHMED, MUKHTAR BELLO
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Publication number: 20130165318Abstract: The methanol electro-oxidation catalysts include nano-oxides of rare earth metals (i.e., cesium, praseodymium, neodymium and samarium) and platinum nano-particles. The nano-oxides of the rare earth metals are dispersed during synthesis of a support material, preferably formed from mesoporous carbon. The platinum nano-particles form between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, the rare earth metal forms between about 10 wt % and about 15 wt % of the methanol electro-oxidation catalyst, and carbon and oxygen forming the balance (between about 70 wt % and about 80 wt %) of the methanol electro-oxidation catalyst.Type: ApplicationFiled: December 27, 2011Publication date: June 27, 2013Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: Syed Mohammed Javaid Zaidi, Saleem Ur Rahman, Shakeel Ahmed, Mukhtar Bello
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Publication number: 20120141907Abstract: The fuel cell membrane electrode assembly includes PtRu active species supported on mesoporous carbon nitride materials for use in the anode of direct methanol fuel cells. The fuel cell membrane electrode assembly includes an anode plate, a gas diffusion layer, and a catalyst adjacent a PEM membrane. The composition of the catalyst is about 30 wt % active species and 70 wt % support materials. The nitrided PtRu on a mesoporous carbon support provides enhanced hydrogen adsorbing capacity to accelerate the rate of oxidation of methanol at the anode of a direct methanol fuel cell, resulting in greater efficiency of the fuel cell.Type: ApplicationFiled: January 3, 2012Publication date: June 7, 2012Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALSInventors: SYED MOHAMMED JAVAID ZAIDI, SALEEM UR RAHMAN, SHAKEEL AHMED, MUKHTAR BELLO