Nitrogen Containing Patents (Class 205/491)
  • Patent number: 8916123
    Abstract: Ammonia is synthesized using electrochemical and non-electrochemical reactions. The electrochemical reactions occur in an electrolytic cell having a lithium ion conductive membrane that divides the electrochemical cell into an anolyte compartment and a catholyte compartment. The catholyte compartment includes a porous cathode closely associated with the lithium ion conductive membrane. The overall electrochemical reaction is: 6LiOH+N2?Li3N (s)+3H2O+3/2O2. The nitrogen may be produced by a nitrogen generator. The non-electrochemical reaction involves reacting lithium nitride with water and/or steam as follows: Li3N (s)+3H2O?3LiOH+NH3 (g). The ammonia is vented and collected. The lithium hydroxide is preferably recycled and introduced into the anolyte compartment. The electrolytic cell is shut down prior to reacting the lithium nitride with water. The cathode is preferably dried prior to start up of the electrolytic cell and electrolyzing Li+ and N2 at the cathode.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: December 23, 2014
    Assignee: Ceramatec, Inc.
    Inventors: Ashok V. Joshi, Sai Bhavaraju
  • Publication number: 20140262813
    Abstract: Both the reaction of hydride-forming compositions with hydrogen to form hydrides, and the decomposition of such hydrides to release hydrogen may be promoted electrochemically. These reactions may be conducted reversibly, and if performed in a suitable cell, the cell will serve as a hydrogen storage and release device.
    Type: Application
    Filed: May 27, 2014
    Publication date: September 18, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: John J. Vajo, Wen Li, Ping Liu, Frederick E. Pinkerton
  • Publication number: 20100210453
    Abstract: A method for the preparation of materials comprises the steps of: a) taking a first material comprising a compound of a first metal or of a first metal alloy, b) inserting said first material into an electrochemical cell as a first electrode, the electrochemical cell including a second electrode including a second metal different from a metal incorporated in the first material and an electrolyte adapted to transport the second metal to the first electrode and insert it into the first material by a current flowing in an external circuit resulting in the formation of a compound of the second metal in the first electrode material, the method being characterized by the step of treating the first electrode material after formation of the compound of the second metal to chemically remove at least some of the compound of the second metal to leave a material with a nanoporous structure.
    Type: Application
    Filed: March 29, 2007
    Publication date: August 19, 2010
    Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Yong-Sheng Hu, Yu-Guo Guo, Palani Balaya, Joachim Maier, Sarmimala Hore
  • Patent number: 6440293
    Abstract: An electrode for electrolyzing an electrolyte comprising an ammonium fluoride (NH4F)-hydrogen fluoride (HF)-containing molten salt and having a composition ratio (HF/NH4F) of 1 to 3 to prepare a nitrogen trifluoride (NF3) gas and an electrolyte for use in the preparation of NF3 gas, and a preparation method of the NF3 gas by the use of the electrode and the electrolyte. The electrode comprises nickel having 0.07 wt % or less of Si content and containing a transition metal other than nickel. The electrolyte also contains a transition metal other than nickel.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: August 27, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tatsuma Morokuma, Hiromi Hayashida, Akio Kikkawa
  • Patent number: 5876581
    Abstract: A process for synthesizing iron(III) hexacyanoferrate(II) as a blue insoluble product on the surface of a working electrode is disclosed which comprises immersing a pair of electrodes in a solution mixture of an iron(III) ion-containing solution and a hexacyanoferrate(III) ion-containing solution and effecting electrolysis with one of the electrodes as an anode and the other as a cathode, whereby iron(III) hexacyanoferrate(II) is deposited on the surface of the cathode.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: March 2, 1999
    Assignee: Seiko Instruments Inc.
    Inventors: Kingo Itaya, Kimio Shibayama, Shinobu Toshima, Tatsuaki Ataka, Koji Iwasa