Abstract
A method for the electrochemical extraction of oxygen is prasented.The concentration of HO2-ions and the purity of oxygen were measured by KMnO4 standard method,and by cuprammonium absorb method respectively.Effect of the membrane and the spacing between cathode and anode on the purity of oxygen were also tested.The experiment results were showed that the system could work continuously above 500h and the purity of oxygen was above 99.8% when using proper membrane at 80 mA·cm-2 current density,Electrochemical reaction included 4e reacting course and 2e reacting course,the ratio of 2e reaction is about 38%~44% of the whole reaction.
Keywords
air electrode, electrochemistry, oxygen, purity
Publication Date
2007-05-28
Online Available Date
2007-05-28
Revised Date
2007-05-28
Received Date
2007-05-28
Recommended Citation
Xiao-ke ZHI, Guang-chuan LIANG, Xiu-qin OU, Shu-guang LIU, Bin HAN.
Study on the Electrochemical Extraction of Oxygen and Influence Factors of Oxygen Purity[J]. Journal of Electrochemistry,
2007
,
13(2): 151-155.
DOI: 10.61558/2993-074X.1798
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol13/iss2/8
