Surface preparation of planar lead electrodes for electrochemical studies in sulphuric acid solutions

摘要: Abstract There are wide discrepancies in the reported current density values (ip and io, her) obtained from potentiodynamic studies on lead sulphuric acid solutions. Furthermore, it is well known that preparative procedures exert a marked influence data for planar electrodes. The present investigation confirms variation with different methods of polishing effect subsequent cycling. From analysis results, well-defined procedure derived to produce an electrode constant-response-modified-surface (CRMS). This yields densities vary by only ±2%. Scanning electron micrographs treated electrodes provide additional evidence support CRMS.