Reaction Kinetics and Catalysis Letters

, Volume 45, Issue 1, pp 67–71 | Cite as

Electrocatalytic effect of metal ions on lead and lead dioxide electrode reactions

  • H. Sánchez
  • Y. Meas


The electrochemical reactions which take place on lead and lead dioxide electrodes of a lead-acid battery are highly influenced by the presence in the electrolytic solution of ions Cd(II), Ni(II), Zn(II) and Co(II). Current density-potential curves were obtained in this work by using a Pb/Ca alloy. It was observed that Co(II) and Ni(II) ions catalyzed both hydrogen and oxygen evolution reactions. On the other hand, Cd(II) and Zn(II) ions decreased the hydrogen evolution rate.


Oxygen Hydrogen Physical Chemistry Dioxide Catalysis 
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На электрохимические реакции, протекающие на электродах свинца и двуокиси свинца в свинцово-кислых аккумуляторах, сильно влияет присутствие в электролитическом растворе ионов Cd(II), Ni(II), Zn(II) и Co(II). Кривые плотность тока-потенциал получены, используя сплавы Pb/Ca. Найдено, что металлические ионы Co(II) и Ni(II) катализируют реакции выделения как водорода, так и кислорода. С другой стороны, металлические ионы Cd(II) и Zn(II) уменьшают скорость реакции выделения водорода.


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Copyright information

© Akadémiai Kiadó 1991

Authors and Affiliations

  • H. Sánchez
    • 1
  • Y. Meas
    • 1
  1. 1.Depto. de QuímicaUniversidad Autónoma Metropolitana-Unidad IztapalapaMéxico

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