Patents by Inventor Ulf-Peter APFEL

Ulf-Peter APFEL 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).

  • METHOD FOR THE SELECTIVE CATALYTIC HYDROGENATION OF ORGANIC COMPOUNDS, AND ELECTRODE AND ELECTROCHEMICAL CELL FOR SAID METHOD
    Publication number: 20250003086
    Abstract: A process for electrocatalytic hydrogenation of organic compounds in an electrochemical cell in which the reducible organic compound is present in liquid form or at least partially in dissolved form and wherein the reducible organic compound may be hydrogenated at the cathode. The cathode comprises a transition metal chalcogenide selected from sulfides, selenides and tellurides as catalyst. The application further relates to an electrode comprising a carrier material and a layer of the catalyst arranged thereupon and to an electrochemical cell comprising such an electrode and to the use of the transition metal chalcogenide catalyst for electrochemical hydrogenation of organic compounds.
    Type: Application
    Filed: July 28, 2022
    Publication date: January 2, 2025
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V., Ruhr-Universität Bochum
    Inventors: Daniel SIEGMUND, Ulf-Peter APFEL, Kai JUNGE PURING, Kevinjeorjios PELLUMBI, Julian Tobias KLEINHAUS
  • Use of sulfidic compositions
    Patent number: 11939684
    Abstract: The present invention relates to the use of a composition of formula (I): Fe9-a-b-cNiaCobMcS8-dSed, wherein M stands for one or more elements having in the ionic state an effective ionic radius in the range of 70-92 pm, a is a number within the range of 2.5?a?3.5, more preferably 2.7?a?3.3, b is a number within the range of 1.5?b?5.0, more preferably 1.5?b?4.0, most preferably 2.5?b?3.5, c is a number within the range of 0.0?c?2.0, more preferably 0.0?c?1.0, d is a number within the range of 0.0?d?4.0, more preferably 0.0?d?1.0, wherein the sum of a, b and c is in the range of 5?a+b+c?8 and wherein ?90 wt. % of the composition is in the pentlandite phase for electrocatalytic splitting of water, preferably for hydrogen evolution reaction.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 26, 2024
    Assignee: TRIBOTECC GMBH
    Inventors: Lars Hensgen, Ulf-Peter Apfel, Mathias Smialkowski
  • USE OF SULFIDIC COMPOSITIONS
    Publication number: 20220106693
    Abstract: The present invention relates to the use of a composition of formula (I): Fe9-a-b-cNiaCobMcS8-dSed, wherein M stands for one or more elements having in the ionic state an effective ionic radius in the range of 70-92 pm, a is a number within the range of 2.5?a?3.5, more preferably 2.7?a?3.3, b is a number within the range of 1.5?b?5.0, more preferably 1.5?b?4.0, most preferably 2.5?b?3.5, c is a number within the range of 0.0?c?2.0, more preferably 0.0?c?1.0, d is a number within the range of 0.0?d?4.0, more preferably 0.0?d?1.0, wherein the sum of a, b and c is in the range of 5?a+b+c?8 and wherein ?90 wt. % of the composition is in the pentlandite phase for electrocatalytic splitting of water, preferably for hydrogen evolution reaction.
    Type: Application
    Filed: February 21, 2020
    Publication date: April 7, 2022
    Inventors: Lars HENSGEN, Ulf-Peter APFEL, Mathias SMIALKOWSKI