Electrochemical Noise

1
Electrochemical Noise

• Name Celine Manoosingh
• Level Sophomore
• Number of Semesters Participated1
• Date of Submission May 6, 2004
• Advisor Dr. Babu Joseph, Dr. Alberto Sagues
• Department Chemical and Civil Engineering

2
Setup for determining noise
(top right) Shows setup to Gamry instrument (top
left) actual cell matrix setup (bottom right)
cell setup (bottom right) actual cell
3
Example of Graph obtained from the Gamry
Instrument depicting ECN
Shows solution matrix to vary alkalinity and
chloride concentration
Noise Readingsfor solution 4

4
Conclusions

• From our results, after analyses, we are able to
  conclude that
• Higher alkalinity and hardness of a solution
  impedes the corrosion rate.
• Higher concentrations of chloride ions accelerate
  the corrosion rate, and size of the pitting
  corrosion.
• There is an initial increase in noise of system
  as time goes on, followed by a gradual decline.
  This is due to the constant chemical changes
  occurring in the electrolyte.