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Journal of Applied Electrochemistry

, Volume 11, Issue 2, pp 209–215 | Cite as

An integrated electrochemical-chemical method for the extraction of O2 from air

  • A. C. C. Tseung
  • S. M. Jasem
Papers

Abstract

Oxygen can be extracted from ambient air by using a platinum cathode to reduce oxygen and by simultaneously evolving oxygen on a platinum anode. This leads to lower power consumption than when electrolyzing water to produce oxygen. A novel, integrated electrochemical-chemical method is described in this paper. The system consists of a Teflon-bonded graphite cathode which reduces oxygen via a two-electron process with the formation of HO 2 intermediate. By placing a NiCo2O4-covered nickel screen in the anode compartment, HO 2 is chemically decomposed to yield O2; a separate Teflon-bonded NiCo2O4 anode evolves O2 electrolytically. At 40° C and in 5 M KOH, the power consumption of this device is only 2.69 kWhr−1 of O2, significantly lower than conventional electrochemical oxygen extractors (4.38 kWhl−1O2).

Keywords

Oxygen Physical Chemistry Nickel Graphite Platinum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd 1981

Authors and Affiliations

  • A. C. C. Tseung
    • 1
  • S. M. Jasem
    • 1
  1. 1.Department of ChemistryThe City UniversityLondonUK

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