The STUDIA UNIVERSITATIS BABE┼×-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA CHEMIA - Issue no. 2 / 2011  
         
  Article:   GRAPHITE ELECTRODE ELECTROACTIVATED BY POTENTIOSTATIC MULTI-SEQUENCE TECHNIQUES FOR HYDROGEN PEROXIDE ELECTROSYNTHESIS.

Authors:  SORIN-AUREL DORNEANU, PETRU ILEA.
 
       
         
  Abstract:  Studies concerning the hydrogen peroxide electrosynthesis carried out by cyclic hydrodynamic voltammetry (CHV), revealed that graphite anodisation followed by a sequence of surface partial reduction has a positive effect upon the HPE efficiency. In order to improve the promising results obtained by CHV a set of original multi-sequences techniques for repetitive potentiostatic graphite electroactivation for HPE efficiency improvement was designed. The new electroactivation protocols were tested in hydrodynamic controlled conditions using a Pt-graphite wall-jet ring disk electrode. The potentiostatic measurements using different shapes of the applied signal allowed us to identify the possible processes involved in the electroactivation and production sequences. Experimental optimisation of the original potentiostatic electroactivation technique of the graphite cathode was carried out leading to a decrease of the electrical energy consumption.

Keywords: hydrogen peroxide electrosynthesis, graphite electroactivation, wall-jet ring disk electrode, multi-sequence technique 

 
         
     
         
         
      Back to previous page