Patents by Inventor Bo Brummerstedt Iversen
Bo Brummerstedt Iversen 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: 11492259Abstract: A method for manufacturing metal phosphate hydrate nanoparticles wherein metal reactants are selected from metal precursors of transition metals,phosphate precursors are selected from: Trisodium phosphate Na3PO4, disodium phosphate Na2HPO4, phosphoric acid H3PO4 and hypophosphoric acid H4P2O6, wherein said method comprises the following step of a reaction medium comprising at least a metal reactant, a phosphate precursor and a solvent, is submitted to a solvothermal treatment at a pressure superior to 50 MPa, and at a temperature of from 100 to 350° C.Type: GrantFiled: June 26, 2018Date of Patent: November 8, 2022Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ DE BORDEAUX, UNIVERSITY OF AARHUSInventors: Cyril Aymonier, Bo Brummerstedt Iversen, Gilles Philippot, Nils Lau Nyborg Broge
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Publication number: 20200140277Abstract: A method for manufacturing metal phosphate hydrate nanoparticles wherein metal reactants are selected from metal precursors of transition metals,phosphate precursors are selected from: Trisodium phosphate Na3PO4, disodium phosphate Na2HPO4, phosphoric acid H3PO4 and hypophosphoric acid H4P2O6, wherein said method comprises the following step of a reaction medium comprising at least a metal reactant, a phosphate precursor and a solvent, is submitted to a solvothermal treatment at a pressure superior to 50 MPa, and at a temperature of from 100 to 350° C.Type: ApplicationFiled: June 26, 2018Publication date: May 7, 2020Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ DE BORDEAUX, UNIVERSITY OF AARHUSInventors: Cyril AYMONIER, Bo BRUMMERSTEDT IVERSEN, Gilles PHILIPPOT, Nils LAU NYBORG BROGE
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Patent number: 10195590Abstract: A method of preparing a catalytic structure the method including the steps of: providing a solution of a precursor compound in a solvent at ambient conditions; providing a suspension of a support material having a specific surface area of at least 1 m2/g in a solvent at ambient conditions; mixing the solution of the precursor compound and the suspension of the support material; providing a reactive solvent in a supercritical or subcritical state; admixing the mixture of the solution of the precursor compound and the suspension of the support material in the supercritical or subcritical reactive solvent to form a reaction solution; injecting the reaction solution into a reactor tube via an inlet; allowing a reaction of the precursor compound in the supercritical or subcritical reactive solvent in the reactor tube to form the catalyst nanoparticles on the support material to provide the catalytic structure.Type: GrantFiled: July 5, 2013Date of Patent: February 5, 2019Assignee: TEKNOLOGISK INSTITUTInventors: Christian Kallesøe, Henrik Fanø Clausen, Leif Højslet Christensen, Torsten Lund-Olesen, Mohammad Aref Hasen Mamakhel, Bo Brummerstedt Iversen, Jacob Becker-Christensen, David Friis Aarup, Jan Hales
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Publication number: 20150202598Abstract: A method of preparing a catalytic structure the method including the steps of: providing a solution of a precursor compound in a solvent at ambient conditions; providing a suspension of a support material having a specific surface area of at least 1 m2/g in a solvent at ambient conditions; mixing the solution of the precursor compound and the suspension of the support material; providing a reactive solvent in a supercritical or subcritical state; admixing the mixture of the solution of the precursor compound and the suspension of the support material in the supercritical or subcritical reactive solvent to form a reaction solution; injecting the reaction solution into a reactor tube via an inlet; allowing a reaction of the precursor compound in the supercritical or subcritical reactive solvent in the reactor tube to form the catalyst nanoparticles on the support material to provide the catalytic structure.Type: ApplicationFiled: July 5, 2013Publication date: July 23, 2015Inventors: Christian Kallesøe, Henrik Fano Clausen, Leif Hojslet Christensen, Torsten Lund-Olesen, Mohammed Aref Hasen Mamakhe, Bo Brummerstedt Iversen, Jacob Becker-Christensen, David Friss Aarup, Jan Hales
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Publication number: 20140140881Abstract: The present invention relates to a method 931 for producing a solid element, which comprises the thermoelectrically active material beta-Zn4Sb3. The method utilizes that is possible to directly synthesize and press pellets of Zn4Sb3 starting from powders of Zn and Sb, by mixing 930 powders of Zn and Sb so as to obtain a mixed powder comprising elemental zinc and elemental antimony, placing 932 the mixed powder in a container and simultaneously applying 936 a pulsed current, such as to heat up the powders, and applying 938 a pressure such as to compact the powder mix. The gist of the invention might be seen as exploiting the basic insight, that the cumbersome and time- and energy consuming steps of synthesis and pressing of Zn and Sb, so as to achieve a solid element comprising Zn4Sb3, can be combined into a single step where the synthesis and pressing is effected simultaneously.Type: ApplicationFiled: July 16, 2012Publication date: May 22, 2014Applicant: AARHUS UNIVERSITETInventors: Bo Brummerstedt Iversen, Mogens Christensen, Hao Yin
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Patent number: 8524106Abstract: A thermoelectric material of the p-type having the stoichiometric formula Zn4Sb3, wherein part of the Zn atoms optionally being substituted by one or more elements selected from the group comprising Sn, Mg, Pb and the transition metals in a total amount of 20 mol % or less in relation to the Zn atoms is provided by a process involving zone-melting of a an arrangement comprising an interphase between a “stoichiometric” material having the desired composition and a “non-stoichiometric” material having a composition deviating from the desired composition. The thermoelectric materials obtained exhibit excellent figure of merits.Type: GrantFiled: July 13, 2011Date of Patent: September 3, 2013Assignees: Aarhus Universitet, Deutsches Zentrum für Luft- und Raumfahrt Advanced TechnologyInventors: Bo Brummerstedt Iversen, Britta Lundtoft, Mogens Christensen, Dieter Platzek
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Publication number: 20130199025Abstract: The present invention relates to a thermoelectric device 100A comprising a layered structure comprising a first layer 106, a first electrical connector 102, a second electrical connector 104, and a second layer 108 being different from the first layer 106, where the first layer comprises a material having the stoichiometric formula Zn4Sb3 (zinc antimonide)and the second layer 108 comprises Zn (zinc). The first layer 106 is being placed between the first and second electrical connector 102, 104, and the second layer 108 is placed between the first layer 106 and the first electrical connector 102. By having a second layer 108 comprising Zn the negative effects of electromigration of Zn may be overcome, since Zn may emanate from the foil and refill Zn depleted regions in the first layer. In a particular embodiment the second layer is a foil. In another particular embodiment, the first layer is doped with an element such as magnesium.Type: ApplicationFiled: October 5, 2011Publication date: August 8, 2013Applicants: PANCO GMBH, AARHUS UNIVERSITETInventors: Dieter Platzek, Bo Brummerstedt Iversen, Mogens Christensen
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Publication number: 20110297872Abstract: A thermoelectric material of the p-type having the stoichiometric formula Zn4Sb3, wherein part of the Zn atoms optionally being substituted by one or more elements selected from the group comprising Sn, Mg, Pb and the transition metals in a total amount of 20 mol % or less in relation to the Zn atoms is provided by a process involving zone-melting of a an arrangement comprising an interphase between a “stoichiometric” material having the desired composition and a “non-stoichiometric” material having a composition deviating from the desired composition. The thermoelectric materials obtained exhibit excellent figure of merits.Type: ApplicationFiled: July 13, 2011Publication date: December 8, 2011Applicants: Deutsches Zentrum für Luft- und Raumfahrt Advanced Technology, AARHUS UNIVERSITETInventors: Bo Brummerstedt Iversen, Britta Lundtoft, Mogens Christensen, Dieter Platzek
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Patent number: 8003002Abstract: A thermoelectric material of the p-type having the stoichiometric formula Zn4Sb3, wherein part of the Zn atoms optionally being substituted by one or more elements selected from the group comprising Sn, Mg, Pb and the transition metals in a total amount of 20 mol % or less in relation to the Zn atoms is provided by a process involving zone-melting of a an arrangement comprising an interphase between a “stoichiometric” material having the desired composition and a “non-stoichiometric” material having a composition deviating from the desired composition. The thermoelectric materials obtained exhibit excellent figure of merits.Type: GrantFiled: May 31, 2006Date of Patent: August 23, 2011Assignees: Aarhus Universitet, Deutsches Zentrum für Luft- und Raumfahrt Advanced Technology MarketingInventors: Bo Brummerstedt Iversen, Britta Lundtoft, Mogens Christensen, Dieter Platzek
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Publication number: 20100139730Abstract: The invention relates to the use of a thermoelectric material for thermoelectric purposes at a temperature of 150 K or less, said thermoelectric material is a material corresponding to the stoichiometric formula FeSb2, wherein all or part of the Fe atoms optionally being substituted by one or more elements selected from the group comprising: Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, La, Hf, Ta, W, Re, Os, Tr, Pt, Au, Hg, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and a vacancy; and wherein all or part of the Sb atoms optionally being substituted by one or more elements selected from the group comprising: P, As, Bi, S, Se, Te, B, Al, Ga, In, Tl, C, Si, Ge, Sn, Pb and a vacancy; with the proviso that neither one of the elements Fe and Sb in the formula FeSb2 is fully substituted with a vacancy, characterised in that said thermoelectric material exhibits a power factor (S2?) of 25 ?W/cmK2 or more at a temperature of 150 K or less.Type: ApplicationFiled: December 4, 2007Publication date: June 10, 2010Applicants: AARHUS UNIVERSITET, Max-Planckgesellschaft Zur Forderung der Wissenschaften E.V.Inventors: Anders Bentien, Simon Johnsen, Georg Kent Hellerup Madsen, Bo Brummerstedt Iversen, Frank Steglich
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Publication number: 20090229647Abstract: A thermoelectric material of the p-type having the stoichiometric formula Zn4Sb3, wherein part of the Zn atoms optionally being substituted by one or more elements selected from the group comprising Sn, Mg, Pb and the transition metals in a total amount of 20 mol % or less in relation to the Zn atoms is provided by a process involving zone-melting of a an arrangement comprising an interphase between a “stoichiometric” material having the desired composition and a “non-stoichiometric” material having a composition deviating from the desired composition. The thermoelectric materials obtained exhibit excellent figure of merits.Type: ApplicationFiled: May 31, 2006Publication date: September 17, 2009Inventors: Bo Brummerstedt Iversen, Britta Lundtoft, Mogens Christensen, Dieter Platzek