Patents by Inventor Claudia Querner
Claudia Querner 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: 9162220Abstract: A process for preparing a catalyst material comprising an electrically conducting support material, a proton-conducting, polyazole-based polymer and a catalytically active material. A catalyst material prepared by the process of the invention. A catalyst ink comprising a catalyst material of the invention and a solvent. A catalyst-coated membrane (CCM) comprising a polymer electrolyte membrane and also catalytically active layers comprising a catalyst material of the present invention. A gas diffusion electrode (GDE) comprising a gas diffusion layer and a catalytically active layer comprising a catalyst material of the invention. A membrane-electrode assembly (MEA) comprising a polymer electrolyte membrane, catalytically active layers comprising a catalyst material of the invention, and gas diffusion layers. And a fuel cell comprising a membrane-electrode assembly of the present invention.Type: GrantFiled: October 21, 2011Date of Patent: October 20, 2015Assignee: BASF SEInventors: Ömer Ünsal, Sigmar Bräuninger, Claudia Querner, Ekkehard Schwab
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Patent number: 9095845Abstract: A catalyst material comprising an electrically conducting support material, a proton-conducting, acid-doped polymer based on a polyazole salt, and a catalytically active material. A process for preparing the catalyst material. A catalyst material prepared by the process of the invention. A catalyst ink comprising the catalyst material of the invention and a solvent. A catalyst-coated membrane (CCM) comprising a polymer electrolyte membrane and also catalytically active layers comprising a catalyst material of the present invention. A gas diffusion electrode (GDE) comprising a gas diffusion layer and a catalytically active layer comprising a catalyst material of the invention. A membrane-electrode assembly (MEA) comprising a polymer electrolyte membrane, catalytically active layers comprising a catalyst material of the invention, and gas diffusion layers. And a fuel cell comprising a membrane-electrode assembly of the present invention.Type: GrantFiled: October 21, 2011Date of Patent: August 4, 2015Assignee: BASF SEInventors: Oemer Uensal, Sigmar Brauninger, Claudia Querner, Ekkehard Schwab
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Patent number: 9054355Abstract: The invention relates to a catalyst for fuel cells which comprises a support, at least one catalytically active metal from the platinum group or an alloy comprising at least one metal of the platinum group and also at least one oxide of at least one metal selected from among Ti, Sn, Si, W, Mo, Zn, Ta, Nb, V, Cr and Zr. The invention further relates to a process for producing such a catalyst and its use.Type: GrantFiled: September 22, 2010Date of Patent: June 9, 2015Assignee: BASF SEInventors: Claudia Querner, Stefan Kotrel, Ekkehard Schwab, Oemer Uensal, Sigmar Braeuninger
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Patent number: 8916491Abstract: The present invention relates to a process for producing a catalyst for carrying out methanation reactions. The production of the catalyst is based on contacting of a hydrotalcite-comprising starting material with a fusible metal salt. The compounds brought into contact with one another are intimately mixed, thermally treated so that the metal salt fraction melts and subsequently subjected to a low-temperature calcination step and a high-temperature calcination step. The metal salt melt comprises at least one metal selected from the group consisting of K, La, Fe, Co, Ni, Cu and Ce, preferably Ni. The metal salt melt more preferably comprises/contains nickel nitrate hexahydrate. The hydrotalcite-comprising starting material is preferably hydrotalcite or a hydrotalcite-like compound as starting material, and the hydrotalcite-comprising starting material preferably comprises magnesium and aluminum as metal species.Type: GrantFiled: November 7, 2012Date of Patent: December 23, 2014Assignee: BASF SEInventors: Claudia Querner, Andrian Milanov, Stephan Schunk, Andreas Strasser, Guido Wasserschaff, Thomas Roussiere
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Patent number: 8709964Abstract: The invention relates to a process for producing a surface-modified carbon-comprising support, which comprises the following steps: (a) mixing of the carbon-comprising support with at least one metal compound, a carbon- and/or nitrogen-comprising organic substance and optionally a dispersion medium, (b) optionally evaporation of the dispersion medium at a temperature in the range from 40 to 200° C., (c) heating of the mixture to a temperature in the range from 500° C. to 1200° C. to form metal carbides, metal nitrides, metal oxycarbides, metal oxynitrides, metal carboxynitrides and/or metal carbonitrides on the carbon-comprising support. The invention further relates to a use of the surface-modified carbon-comprising support.Type: GrantFiled: September 14, 2011Date of Patent: April 29, 2014Assignee: BASF SEInventors: Bastian Ewald, Claudia Querner
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Publication number: 20140065496Abstract: The invention relates to gas diffusion electrodes for rechargeable electrochemical cells, which comprise at least one support material bearing at least one catalyst, wherein the support material comprises at least one compound selected from the group consisting of electrically conductive metal oxides, carbides, nitrides, borides, silicides and organic semiconductors. The present invention further relates to a process for producing such gas diffusion electrodes and also rechargeable electrochemical cells comprising such gas diffusion electrodes.Type: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Applicant: BASF SEInventors: Alexander Panchenko, Sigmar Braeuninger, Claudia Querner, Arnd Garsuch
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Patent number: 8569196Abstract: The invention relates to a process for the continuous production of a catalyst comprising an alloy of a metal of the platinum group and at least a second metal as alloying metal selected from among the metals of the platinum group and the transition metals, in which a catalyst comprising the metal of the platinum group is mixed with at least one complex each comprising the alloying metal to give an alloy precursor and the alloy precursor is heated in a continuously operated furnace to produce the alloy.Type: GrantFiled: August 19, 2009Date of Patent: October 29, 2013Assignee: BASF SEInventors: Ekkehard Schwab, Stefan Kotrel, Alexander Panchenko, Sigmar Braeuninger, Sandra Magnus, Claudia Querner
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Publication number: 20130116351Abstract: The present invention relates to a process for producing a catalyst for carrying out methanation reactions. The production of the catalyst is based on contacting of a hydrotalcite-comprising starting material with a fusible metal salt. The compounds brought into contact with one another are intimately mixed, thermally treated so that the metal salt fraction melts and subsequently subjected to a low-temperature calcination step and a high-temperature calcination step. The metal salt melt comprises at least one metal selected from the group consisting of K, La, Fe, Co, Ni, Cu and Ce, preferably Ni. The metal salt melt more preferably comprises/contains nickel nitrate hexahydrate. The hydrotalcite-comprising starting material is preferably hydrotalcite or a hydrotalcite-like compound as starting material, and the hydrotalcite-comprising starting material preferably comprises magnesium and aluminum as metal species.Type: ApplicationFiled: November 7, 2012Publication date: May 9, 2013Inventors: Claudia QUERNER, Andrian Milanov, Stephan Schunk, Andreas Strasser, Guido Wasserschaff, Thomas Roussiere
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Publication number: 20120178018Abstract: The invention relates to a catalyst for fuel cells which comprises a support, at least one catalytically active metal from the platinum group or an alloy comprising at least one metal of the platinum group and also at least one oxide of at least one metal selected from among Ti, Sn, Si, W, Mo, Zn, Ta, Nb, V, Cr and Zr. The invention further relates to a process for producing such a catalyst and its use.Type: ApplicationFiled: September 22, 2010Publication date: July 12, 2012Applicant: BASF SEInventors: Claudia Querner, Stefan Kotrel, Ekkehard Schwab, Oemer Uensal, Sigmar Braeuninger
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Publication number: 20120129686Abstract: Catalyst comprising a support and a catalytically active material for use as heterogeneous catalyst for electrochemical reactions, wherein the support is a carbon support having a BET surface area of less than 50 m2/g. The invention further relates to the use of the catalyst as electrode catalyst in a fuel cell.Type: ApplicationFiled: July 28, 2010Publication date: May 24, 2012Applicant: BASF SEInventors: Claudia Querner, Ekkehard Schwab, Oemer Uensal, Sigmar Braeuninger, Thomas Justus Schmidt
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Publication number: 20120100455Abstract: A catalyst material comprising an electrically conducting support material, a proton-conducting, acid-doped polymer based on a polyazole salt, and a catalytically active material. A process for preparing the catalyst material. A catalyst material prepared by the process of the invention. A catalyst ink comprising the catalyst material of the invention and a solvent. A catalyst-coated membrane (CCM) comprising a polymer electrolyte membrane and also catalytically active layers comprising a catalyst material of the present invention. A gas diffusion electrode (GDE) comprising a gas diffusion layer and a catalytically active layer comprising a catalyst material of the invention. A membrane-electrode assembly (MEA) comprising a polymer electrolyte membrane, catalytically active layers comprising a catalyst material of the invention, and gas diffusion layers. And a fuel cell comprising a membrane-electrode assembly of the present invention.Type: ApplicationFiled: October 21, 2011Publication date: April 26, 2012Applicant: BASF SEInventors: Oemer UENSAL, Sigmar Bräuninger, Claudia Querner, Ekkehard Schwab
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Publication number: 20120100457Abstract: A process for preparing a catalyst material comprising an electrically conducting support material, a proton-conducting, polyazole-based polymer and a catalytically active material. A catalyst material prepared by the process of the invention. A catalyst ink comprising a catalyst material of the invention and a solvent. A catalyst-coated membrane (CCM) comprising a polymer electrolyte membrane and also catalytically active layers comprising a catalyst material of the present invention. A gas diffusion electrode (GDE) comprising a gas diffusion layer and a catalytically active layer comprising a catalyst material of the invention. A membrane-electrode assembly (MEA) comprising a polymer electrolyte membrane, catalytically active layers comprising a catalyst material of the invention, and gas diffusion layers. And a fuel cell comprising a membrane-electrode assembly of the present invention.Type: ApplicationFiled: October 21, 2011Publication date: April 26, 2012Applicant: BASF SEInventors: Ömer Ünsal, Sigmar Bräuninger, Claudia Querner, Ekkehard Schwab
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Publication number: 20120094199Abstract: The invention relates to a catalyst for electro-chemical applications comprising an alloy of platinum and a transition metal, wherein the transition metal has an absorption edge similar to the absorption edge of the transition metal in oxidic state, measured with x-ray absorption near-edge spectroscopy (XANES) wherein the measurements are performed in concentrated H3PO4 electrolyte. The invention further relates to a process for an oxygen reduction reaction using the catalyst as electrocatalyst.Type: ApplicationFiled: May 27, 2010Publication date: April 19, 2012Applicant: BASF SEInventors: Ekkehard Schwab, Sigmar Braeuninger, Alexander Panchenko, Claudia Querner, Oemer Uensal, Markus Vogt, Qinggang He, Nagappan Ramaswamy, Sanjeev Mukerjee
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Publication number: 20120065052Abstract: The invention relates to a process for producing a surface-modified carbon-comprising support, which comprises the following steps: (a) mixing of the carbon-comprising support with at least one metal compound, a carbon- and/or nitrogen-comprising organic substance and optionally a dispersion medium, (b) optionally evaporation of the dispersion medium at a temperature in the range from 40 to 200° C., (c) heating of the mixture to a temperature in the range from 500° C. to 1200° C. to form metal carbides, metal nitrides, metal oxycarbides, metal oxynitrides, metal carboxynitrides and/or metal carbonitrides on the carbon-comprising support. The invention further relates to a use of the surface-modified carbon-comprising support.Type: ApplicationFiled: September 14, 2011Publication date: March 15, 2012Applicant: BASF SEInventors: Bastian EWALD, Claudia Querner
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Publication number: 20110195347Abstract: The invention relates to a process for producing a catalyst, where the catalyst comprises a catalytically active material and a carbon-comprising support, in which the carbon-comprising support is impregnated with a metal salt solution in a first step, the carbon-comprising support impregnated with the metal salt solution is subsequently heated to a temperature of at least 1500° C. in an inert atmosphere to form a metal carbide layer and the catalytically active material is finally applied to the carbon-comprising support provided with the metal carbide layer. The invention further provides a catalyst which has been produced by the process and comprises a carbon-comprising support and a catalytically active material, with the carbon-comprising support having a metal carbide layer and the catalytically active material having been applied to the carbon-comprising support provided with the metal carbide layer.Type: ApplicationFiled: February 4, 2011Publication date: August 11, 2011Applicant: BASF SEInventors: Claudia Querner, Ekkehard Schwab, Bastian Ewald
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Publication number: 20110177938Abstract: The invention relates to a process for the continuous production of a catalyst comprising an alloy of a metal of the platinum group and at least a second metal as alloying metal selected from among the metals of the platinum group and the transition metals, in which a catalyst comprising the metal of the platinum group is mixed with at least one complex each comprising the alloying metal to give an alloy precursor and the alloy precursor is heated in a continuously operated furnace to produce the alloy.Type: ApplicationFiled: August 19, 2009Publication date: July 21, 2011Applicant: BASF SEInventors: Ekkehard Scheab, Stefan Kotrel, Alexander Panchenko, Sigmar Braeuninger, Sandra Magnus, Claudia Querner
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Patent number: 7309525Abstract: Nanocrystal comprising an inorganic core consisting of least one metal and/or at least one semi-conductor compound comprising at least one metal, the external surface of said nanocrystal being provided with an organic coating layer, consisting of at least one ligand compound of formula (I): X—Y-Z??(I) in which X represents a 1,1-dithiolate or 1,1-diselenoate group that is linked by the two atoms of sulphur or selenium to an atom of metal of the external surface of said nanocrystal; Y represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; Z is a group chosen from among groups capable of communicating specific properties to the nanocrystal. Their methods of manufacture.Type: GrantFiled: December 1, 2004Date of Patent: December 18, 2007Assignee: Commissariat l'Energie AtomiqueInventors: Peter Reiss, Claudia Querner, Nicolas Charvet
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Publication number: 20050266246Abstract: Nanocrystal comprising an inorganic core consisting of least one metal and/or at least one semi-conductor compound comprising at least one metal, the external surface of said nanocrystal being provided with an organic coating layer, consisting of at least one ligand compound of formula (I): X—Y-Z??(I) in which X represents a 1,1-dithiolate or 1,1-diselenoate group that is linked by the two atoms of sulphur or selenium to an atom of metal of the external surface of said nanocrystal; Y represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; Z is a group chosen from among groups capable of communicating specific properties to the nanocrystal. Their methods of manufacture.Type: ApplicationFiled: December 1, 2004Publication date: December 1, 2005Inventors: Peter Reiss, Claudia Querner, Nicolas Charvet