Journal of Advanced Chemical Engineering

Dobrovolsky YA

Publications

• Research Article
  Electrochemical Noise Measurement and Analysis of Hydrogen-air PEM Fuel Cell
  Author(s): Astafev EA, Dobrovolsky YA , Ukshe AE , Manzhos RA and Grafov BMAstafev EA, Dobrovolsky YA , Ukshe AE , Manzhos RA and Grafov BM
  
  The method of measurement and analysis of electrochemical noise was used to test a hydrogen-air polymer electrolyte fuel cell and its electro catalytic electrodes. The measurement was carried out during stepped electrochemical aging. After each aging step, the electrochemical noise was measured and analyzed. Besides, power characteristics of the fuel cell and its impedance spectrums were collected to characterize fuel cell at different stages of aging. These data were compared with the electrochemical noise analysis results. Experimental study of electrochemical noise of PEM fuel cell electrodes in a liquid electrolyte during artificial degradation in solutions saturated by various gases was carried out. A decrease in activity due to the degradation of the electrodes was showed to be accompanied by a decrease in the integral of noise amplitude and a significantly lower dependence of f.. View More»
  DOI: 10.4172/2090-4568.1000162

  Abstract PDF