Patents Assigned to Advent Technologies
  • Patent number: 8247521
    Abstract: New multifunctional aromatic copolymers bearing pyridine or pyrimidine units either in the main chain or side chain and single wall carbon nanotubes or multi wall carbon nanotubes as side chain pendants have been prepared. These multifunctional materials will combine both high proton and electrical conductivity due to the existence of polar pyridine or pyrimidine groups and carbon nanotubes within the same chemical structure. The prepared multifunctional materials can be used in the catalyst ink of the electrodes in high temperature PEM fuel cells.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: August 21, 2012
    Assignee: Advent Technologies
    Inventors: Christos Chochos, Nora Gourdoupi, Nikolas Triantafyllopoulos, Joannis Kallitsis
  • Publication number: 20120202129
    Abstract: A polymer electrolyte comprising at least one aromatic polyether copolymer with main chain pyridine groups and side chain carboxylic acid or carboxylic ester or toluene or methoxy phenyl or hydroxyl phenyl or propenyl or styrene groups and/or pyridine groups, which have the ability to be covalently cross-linked.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 9, 2012
    Applicant: ADVENT TECHNOLOGIES
    Inventors: Aikaterini K. Andreopoulou, Andrea Voege, Fotis Paloukis, Christina Morfopoulou, Konstantinia D. Papadimitriou, Stylianos G. Neophytides, Joannis K. Kallitsis, Maria K. Daletou, Joannis Kalamaras
  • Publication number: 20120086385
    Abstract: A power system is provided which includes hydrogen production via reformation of gaseous or liquid hydrocarbons and/or alcohol feedstocks, in combination with high temperature PEM fuel cells which function as a power source, particularly for beverage and/or water cooler appliances, refrigerators or freezers and methods of use thereof.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 12, 2012
    Applicants: Frigoglass S.A.I.C., Advent Technologies, HELBIO S.A. Hydrogen and Energy Production Systems
    Inventors: Spyridon Masouras, Maria Michalopoulou, Nikolaos Triantafyllopoulos, Nora Gourdoupi, Thomas Halkides, Andreas Stavrakas
  • Patent number: 7854862
    Abstract: Facile ways towards the integration of the regioregular poly(3-alkylthiophene)s onto carbon nanotubes, providing multifunctional materials that combine the extraordinary properties of the carbon nanotubes with those of regioregular poly(3-alkylthiophene)s, are presented.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: December 21, 2010
    Assignee: Advent Technologies
    Inventors: Christos Chochos, Joannis Kallitsis
  • Patent number: 7786244
    Abstract: Featured are novel heterocycle substituted hydroquinones, aromatic copolymers and homopolymers bearing main and side chain polar pyridine units. These polymers exhibit good mechanical properties, high thermal and oxidative stability, high doping ability and high conductivity values. These novel polymers can be used in the preparation and application of MEA on PEMFC type single cells. The combination of the above mentioned properties indicate the potential of the newly prepared materials to be used as electrolytes in high temperature PEM fuel cells.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: August 31, 2010
    Assignee: Advent Technologies
    Inventors: Maria Geormezi, Nora Gourdoupi
  • Patent number: 7754843
    Abstract: New aromatic polyether type copolymers bearing main chain pyridine and side chain pyridine or pyrimidine units, which exhibit good mechanical properties, high thermal and oxidative stability, high doping ability and high conductivity values. The polymers are useful in the preparation and application of MEA on PEMFC type single cells. The polymers are, further, particularly suitable for use in high temperature PEM fuel cells.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: July 13, 2010
    Assignee: Advent Technologies
    Inventors: Nora Gourdoupi, Maria Geormezi
  • Publication number: 20100062293
    Abstract: This invention refers to an Internal Reforming Alcohol Fuel Cell (IRAFC) using polymer electrolyte membranes (PEMs), which are functional at 190-220° C. and alcohol fuel reforming catalysts for the production of CO-free hydrogen in the temperature range of high temperature PEM fuel cell. The fuel cell comprises: an anode; a high-temperature ion-conducting electrolyte membrane, and any other polymer electrolyte that can operate at temperatures between about 180° C. to about 230° C.; a cathode and two current collectors on each side of the cell.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 11, 2010
    Applicant: ADVENT TECHNOLOGIES
    Inventors: Nikolaos Triantafyllopoulos, Maria Geormezi, Ioanna Papavasiliou, Maria Daletou, Joannis Kallitsis, Stylianos Neophytides, Theophilos Ioannides, George Avgouropoulos
  • Publication number: 20080070093
    Abstract: Featured are novel heterocycle substituted hydroquinones, aromatic copolymers and homopolymers bearing main and side chain polar pyridine units. These polymers exhibit good mechanical properties, high thermal and oxidative stability, high doping ability and high conductivity values. These novel polymers can be used in the preparation and application of MEA on PEMFC type single cells. The combination of the above mentioned properties indicate the potential of the newly prepared materials to be used as electrolytes in high temperature PEM fuel cells.
    Type: Application
    Filed: May 23, 2007
    Publication date: March 20, 2008
    Applicant: Advent Technologies
    Inventors: Maria Geormezi, Nora Gourdoupi