Patents by Inventor Piotr Polczynski

Piotr Polczynski 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).

  • Palladium-platinum system for use as hydrogen storage material and/or electrocatalyst, preferably in fuel-cells
    Patent number: 12060268
    Abstract: The present invention relates to palladium-platinum system consisting of palladium layer covered with a platinum overlayer consisting of 1 to 10 platinum monolayers deposited on palladium for use as hydrogen storage. Such system can be used in fuel cells, hydride batteries and supercapacitors. A method for increasing hydrogen absorption kinetics of hydrogen absorption/desorption process is also disclosed.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: August 13, 2024
    Assignee: UNIWERSYTET WARSZAWSKI
    Inventors: Adam Lewera, Piotr Polczynski, Rafal Jurczakowski
  • Means for carrying out electroless metal deposition with atomic sub-monolayer precision
    Patent number: 12024778
    Abstract: The present invention relates to a method of deposition of thin metal layers on different substrates by electroless chemical method. In the method of the invention, the potential of the plating solution, i.e. a solution from which the metal deposition is carried out, is controlled with a redox buffer. The appropriate plating solution is also disclosed.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: July 2, 2024
    Assignee: UNIWERSYSTET WARSZAWSKI
    Inventors: Rafal Jurczakowski, Piotr Polczynski, Huber Szabat, Aneta Januszewska, Adam Lewera
  • PALLADIUM-PLATINUM SYSTEM FOR USE AS HYDROGEN STORAGE MATERIAL AND/OR ELECTROCATALYST, PREFERABLY IN FUEL-CELLS
    Publication number: 20210292162
    Abstract: The present invention relates to palladium-platinum system consisting of palladium layer covered with a platinum overlayer consisting of 1 to 10 platinum monolayers deposited on palladium for use as hydrogen storage. Such system can be used in fuel cells, hydride batteries and supercapacitors. A method for increasing hydrogen absorption kinetics of hydrogen absorption/desorption process is also disclosed.
    Type: Application
    Filed: April 6, 2021
    Publication date: September 23, 2021
    Inventors: Adam LEWERA, Piotr POLCZYNSKI, Rafal JURCZAKOWSKI
  • A METHOD OF ELECTROLESS DEPOSITION OF PLATINUM GROUP METALS AND THEIR ALLOYS AND A PLATING BATH USED THEREIN
    Publication number: 20200095686
    Abstract: The invention relates to a method of electroless deposition of platinum group metals and their alloys from a plating bath onto a substrate, comprising a reduction step of one or more platinum group metal precursors with a reducing agent, wherein the reducing agent is a primary or secondary monohydroxyalcohol or a mixture of primary or secondary monohydroxyalcohols. The invention also provides a plating bath suitable for use in said method.
    Type: Application
    Filed: June 6, 2018
    Publication date: March 26, 2020
    Inventors: Piotr POLCZYNSKI, Rafal JURCZAKOWSKI, Adam LEWERA, Pawel BACAL, Maciej SLOJEWSKI, Hubert SZABAT
  • MEANS FOR CARRYING OUT ELECTROLESS METAL DEPOSITION WITH ATOMIC SUB-MONOLAYER PRECISION
    Publication number: 20190010609
    Abstract: The present invention relates to a method of deposition of thin metal layers on different substrates by electroless chemical method. In the method of the invention, the potential of the plating solution, i.e. a solution from which the metal deposition is carried out, is controlled with a redox buffer. The appropriate plating solution is also disclosed.
    Type: Application
    Filed: December 23, 2015
    Publication date: January 10, 2019
    Inventors: Rafal JURCZAKOWSKI, Piotr POLCZYNSKI, Huber SZABAT, Aneta JANUSZEWSKA, Adam Lewera
  • PALLADIUM-PLATINUM SYSTEM FOR USE AS HYDROGEN STORAGE MATERIAL AND/OR ELECTROCATALYST, PREFERABLY IN FUEL-CELLS
    Publication number: 20180162727
    Abstract: The present invention relates to palladium-platinum system consisting of palladium layer covered with a platinum overlayer consisting of 1 to 10 platinum monolayers deposited on palladium for use as hydrogen storage. Such system can be used in fuel cells, hydride batteries and supercapacitors. A method for increasing hydrogen absorption kinetics of hydrogen absorption/desorption process is also disclosed.
    Type: Application
    Filed: December 8, 2015
    Publication date: June 14, 2018
    Inventors: Adam LEWERA, Piotr POLCZYNSKI, Rafal JURCZAKOWSKI
  • SELECTIVE CATALYST, PARTICULARLY FOR ELECTROREDUCTION OF OXYGEN, AN ELECTROCHEMICAL SYSTEM CONTAINING THEREOF, AN PALLADIUM-INERT GAS ALLOY AND USE THEREOF, AND A CELL, PARTICULARLY A PHOTOVOLTAIC CELL CONTAINING THEREOF
    Publication number: 20150155570
    Abstract: The present invention provides a catalyst comprising a layer of metallic palladium implanted with an inert gas ions, an electrochemical system containing thereof, a palladium-inert gas alloy stable in the normal conditions, use thereof and a fuel cell containing thereof.
    Type: Application
    Filed: July 30, 2013
    Publication date: June 4, 2015
    Inventors: Adam Lewera, Rafal Jurczakowski, Piotr Polczynski