Patents by Inventor Florian Eweiner
Florian Eweiner 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).
-
Patent number: 11834465Abstract: Method for the production of tetrakis(trihydrocarbylphosphane)palladium(0) in organic solvent, whereby 50 to 100% by weight of the organic solvent consist of at least one polar-aprotic solvent, characterised in that a) at least one palladium compound selected from the group consisting of palladium(II) compounds and palladium(IV) compounds that are soluble in the organic solvent is reacted with b) at least one base, selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal-C1-C4-alcoholates, ammonium carbonate, ammonium hydrogen carbonate, alkaline earth metal hydroxides, alkaline earth metal carbonates, alkaline earth metal hydrogen carbonates, alkaline earth metal-C1-C4-alcoholates, and alkylamines with a total of 2 to 12 carbon atoms; c) at least one trihydrocarbylphosphane; and d) at least one organic reducing agent that is different from the remaining components that are used in the method.Type: GrantFiled: November 17, 2020Date of Patent: December 5, 2023Assignee: HERAEUS DEUTSCHLAND GMBH & CO. KGInventors: Florian Eweiner, Walter Lässig, Richard Walter
-
Publication number: 20220376269Abstract: The present invention relates to a method for producing a catalyst for an electrochemical cell, wherein: a graphited porous carbon material is treated with an oxygen-containing plasma or an aqueous medium containing an oxidising agent, at least one noble metal compound is deposited on the treated carbon material, the impregnated carbon material is brought into contact with a reducing agent such that the noble metal compound is reduced to a metallic noble metal.Type: ApplicationFiled: November 4, 2020Publication date: November 24, 2022Inventors: Frederic HASCHE, Markus NESSELBERGER, Nadia KUWERTZ, Florian EWEINER, Leonarad STOICA, Julie MICHAUD-BERNLOCHNER, Ciaudia RAMIREZ CASTRO, Dominik SAMUELIS
-
Publication number: 20220255086Abstract: The present invention relates to a method for producing a membrane for a fuel cell or electrolytic cell, in which (i) a liquid coating composition, which contains a supported catalyst containing precious metal and also contains an ionomer, is applied to a polymer electrolyte membrane which contains an ionomer, the ionomer of the liquid coating composition and the ionomer of the polymer electrolyte membrane each being a copolymer which contains as monomer a fluoroethylene and a fluorovinyl ether containing a sulfonic acid group, (ii) the coated polymer electrolyte membrane is heated to a temperature in the range from 178° C. to 250° C.Type: ApplicationFiled: April 29, 2020Publication date: August 11, 2022Applicant: Heraeus Deutschland GmbH & Co. KGInventors: Frédéric HASCHÉ, Markus NESSELBERGER, Nadia KUWERTZ, Florian EWEINER, Leonard STOICA
-
Publication number: 20210070793Abstract: Method for the production of tetrakis(trihydrocarbylphosphane)palladium(0) in organic solvent, whereby 50 to 100% by weight of the organic solvent consist of at least one polar-aprotic solvent, characterised in that a) at least one palladium compound selected from the group consisting of palladium(II) compounds and palladium(IV) compounds that are soluble in the organic solvent is reacted with b) at least one base, selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal-C1-C4-alcoholates, ammonium carbonate, ammonium hydrogen carbonate, alkaline earth metal hydroxides, alkaline earth metal carbonates, alkaline earth metal hydrogen carbonates, alkaline earth metal-C1-C4-alcoholates, and alkylamines with a total of 2 to 12 carbon atoms; c) at least one trihydrocarbylphosphane; and d) at least one organic reducing agent that is different from the remaining components that are used in the method.Type: ApplicationFiled: November 17, 2020Publication date: March 11, 2021Inventors: Florian Eweiner, Walter Lässig, Richard Walter
-
Patent number: 10875881Abstract: Method for the production of tetrakis(trihydrocarbylphosphane)palladium(0) in organic solvent, whereby 50 to 100% by weight of the organic solvent consist of at least one polar-aprotic solvent, characterised in that a) at least one palladium compound selected from the group consisting of palladium(II) compounds and palladium(IV) compounds that are soluble in the organic solvent is reacted with b) at least one base, selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal-C1-C4-alcoholates, ammonium carbonate, ammonium hydrogen carbonate, alkaline earth metal hydroxides, alkaline earth metal carbonates, alkaline earth metal hydrogen carbonates, alkaline earth metal-C1-C4-alcoholates, and alkylamines with a total of 2 to 12 carbon atoms; c) at least one trihydrocarbylphosphane; and d) at least one organic reducing agent that is different from the remaining components that are used in the method.Type: GrantFiled: August 17, 2016Date of Patent: December 29, 2020Assignee: HERAEUS DEUTSCHLAND GMBH & CO. KGInventors: Florian Eweiner, Walter Lässig, Richard Walter
-
Publication number: 20200274171Abstract: The present invention relates to a method for the production of a catalyst composition, wherein a support material in the form of carbon particles is impregnated with a platinum compound in an aqueous medium, and the impregnated support material is contected with a reducing agent in the aqueous medium while stirring at a pH in the range of 3.5-6.0 and a Reynolds number of the stirrer of at least 50,000.Type: ApplicationFiled: October 19, 2018Publication date: August 27, 2020Inventors: Markus Nesselberger, Frederic Hasche, Rianne Schöffler, Florian Eweiner, Mark Neuschütz
-
Publication number: 20190194235Abstract: Method for the production of tetrakis(trihydrocarbylphosphane)palladium(0) in organic solvent, whereby 50 to 100% by weight of the organic solvent consist of at least one polar-aprotic solvent, characterised in that a) at least one palladium compound selected from the group consisting of palladium(II) compounds and palladium(IV) compounds that are soluble in the organic solvent is reacted with b) at least one base, selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogen carbonates, alkali metal-C1-C4-alcoholates, ammonium carbonate, ammonium hydrogen carbonate, alkaline earth metal hydroxides, alkaline earth metal carbonates, alkaline earth metal hydrogen carbonates, alkaline earth metal-C1-C4-alcoholates, and alkylamines with a total of 2 to 12 carbon atoms; c) at least one trihydrocarbylphosphane; and d) at least one organic reducing agent that is different from the remaining components that are used in the method.Type: ApplicationFiled: August 17, 2016Publication date: June 27, 2019Applicant: Heraeus Deutschland GmbH & Co. KGInventors: Florian EWEINER, Walter LÄSSIG, Richard WALTER
-
Patent number: 10283779Abstract: A known method for producing porous graphitized carbon material covered with metal nanoparticles involves infiltrating a porous template framework of inorganic material with a carbon precursor. After thermal treatment of the precursor, the template is removed and the particulate porous carbon material is covered with a catalytically active substance. According to the invention, in order to keep the proportion of the noble metal loading at a low level, the thermal treatment of the precursor first involves carbonization, and the material is not graphitized into graphitized, particulate, porous carbon material until the template has been removed. The graphitized carbon material has a hierarchical pore structure with a pore volume of at least 0.5 cm3/g and at least 75% of the pore volume is apportioned to macropores with, size 100 to 5000 nm. Before covering with catalytically active substance, the carbon material is subjected to an activation treatment in an oxidizing atmosphere.Type: GrantFiled: May 27, 2015Date of Patent: May 7, 2019Assignee: Heraeus Deutschland GmbH & Co. KGInventors: Christian Neumann, Jörg Becker, Sascha Pihan, Richard Walter, Walter Laessig, Florian Eweiner, Rainer Kiemel, Gabriele Przibilla, Christian Breuer, Mark Neuschütz
-
Publication number: 20170141405Abstract: A known method for producing porous graphitized carbon material covered with metal nanoparticles involves infiltrating a porous template framework of inorganic material with a carbon precursor. After thermal treatment of the precursor, the template is removed and the particulate porous carbon material is covered with a catalytically active substance. According to the invention, in order to keep the proportion of the noble metal loading at a low level, the thermal treatment of the precursor first involves carbonization, and the material is not graphitized into graphitized, particulate, porous carbon material until the template has been removed. The graphitized carbon material has a hierarchical pore structure with a pore volume of at least 0.5 cm3/g and at least 75% of the pore volume is apportioned to macropores with, size 100 to 5000 nm. Before covering with catalytically active substance, the carbon material is subjected to an activation treatment in an oxidizing atmosphere.Type: ApplicationFiled: May 27, 2015Publication date: May 18, 2017Inventors: Christian NEUMANN, Jörg BECKER, Sascha PIHAN, Richard WALTER, Walter LAESSIG, Florian EWEINER, Rainer KIEMEL, Gabriele PRZIBILLA, Christian BREUER, Mark NEUSCHÜTZ
-
Patent number: 9156767Abstract: The production of noble metal oxalate complexes from noble metal precursors and oxalic acid and/or oxalic acid salts is an exothermic reaction, in which heat and CO2 are produced, is described. The temperature can increase above the decomposition point of the noble metal oxalate complexes in the course of the reaction, which simultaneously releases more CO2. For safety reasons, when the reaction is carried out on a large scale, it is therefore necessary to take into consideration that the product must not be decomposed by heat that is produced during the reaction. Therefore, according to the invention, a method for the production of noble metal oxalate complexes is provided, in which the product noble metal oxalate complexes are added to the reaction mixture as an auto-catalyst.Type: GrantFiled: September 24, 2013Date of Patent: October 13, 2015Assignee: Heraeus Deutschland GmbH & Co. KGInventors: Richard Walter, Florian Eweiner, Walter Låssig, Jörg Fuchs Alameda
-
Publication number: 20150232405Abstract: The production of noble metal oxalate complexes from noble metal precursors and oxalic acid and/or oxalic acid salts is an exothermic reaction, in which heat and CO2 are produced, is described. The temperature can increase above the decomposition point of the noble metal oxalate complexes in the course of the reaction, which simultaneously releases more CO2. For safety reasons, when the reaction is carried out on a large scale, it is therefore necessary to take into consideration that the product must not be decomposed by heat that is produced during the reaction. Therefore, according to the invention, a method for the production of noble metal oxalate complexes is provided, in which the product noble metal oxalate complexes are added to the reaction mixture as an auto-catalyst.Type: ApplicationFiled: September 24, 2013Publication date: August 20, 2015Inventors: Richard Walter, Florian Eweiner, Walter Låssig, Jörg Fuchs Alameda