Journal of Applied Electrochemistry

, Volume 26, Issue 8, pp 881–885 | Cite as

An electrochemical device for oxygen production avoiding the generation of hydrogen

  • C. A. Ma
  • W. G. Yu


An electrochemical device for oxygen production which makes oxygen on both cathode and anode from air has been developed. The electrolytic cell consists of an air cathode, a catalytic decomposition mesh and a nickel anode. The electrolyser is composed of six single cells. The working surface area of a single cell is 0.02 m2. Performance depends on factors such as the basic electrolyte concentration, temperature, air flow rate, gas flow distribution and current density. When the device is operated with 7m KOH at room temperature and with an air flow rate of 0.4m3 h−1 and current of 20 A, the oxygen evolution rate is 0.036m3 h−1 and the oxygen purity is 99.5%. The current efficiency is 72.0%. The device has operated continuously for 12 months with stable performance.


Evolution Rate Oxygen Evolution Current Efficiency Stable Performance Electrolyte Concentration 
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  1. [1]
    R. A. Wynveen and K. M. Montgomery,J. Electrochem. Soc. 114 (1967) 589.Google Scholar
  2. [2]
    A. C. C. Tseung and S. M. Jasem,J. Appl. Electrochem. 11 (1981) 209–15.Google Scholar
  3. [3]
    Nagakazu Furuya, Masanori Kanazawa and Satoshi Motoo,Denki Kagaku 55(12) (1987) 944–45.Google Scholar
  4. [4]
    C. Olomon and A. P. Watkinson,J. Appl. Electrochem. 9 (1979) 117–23.Google Scholar
  5. [5]
    Idem,Can. J. Chem. Eng. 53 (1975) 268–73;54 (1976) 31218.Google Scholar
  6. [6]
    M. Sudoh, H. Kitaguchi and K. Koide,J. Chem. Eng. Japan 18(5) (1985) 409–14;18(4) (1985) 364–71.Google Scholar
  7. [7]
    C. A. Ma, Y. Zhuwang, Z. Yuanhong and C. Chuanxin,Phys. Chem. Acta, China 6(5) (1990) 622–28.Google Scholar
  8. [8]
    C. A. Ma,Chinese Patent ZL92112233. 0 (1992)Google Scholar
  9. [9]
    A. Feihu and L. Guoliang, ‘Study of the Preparation and Application of the Oxygen Cathode’, Zhejiang University of Technology Data (1993).Google Scholar
  10. [10]
    C. A. Ma and W. G. Yu, ‘Study of Electrochemical Medical Oxygen-making Machine (prototype authentication)’, Zhejiang University of Technology Data (1995) pp. 1–60.Google Scholar

Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • C. A. Ma
    • 1
  • W. G. Yu
    • 1
  1. 1.Department of Chemical Engineering, ZhejiangUniversity of TechnologyHangzhouChina

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