About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Corrosion, Protection and Damage Monitoring of Advanced Materials in Natural and Specific Environments
|
| Presentation Title |
Application of EQCM in Investigating Iron Carbonate Formation and Surface Changes |
| Author(s) |
Kamila Turganova, Kushal Singla, Sahithi Ayyagari, Bruce Brown, Hubert Perrot, Srdjan Nesic |
| On-Site Speaker (Planned) |
Kamila Turganova |
| Abstract Scope |
Electrochemical Quartz Crystal Microbalance (EQCM) is a powerful technique that can be used to study iron carbonate (FeCO3) formation and understand the accompanying surface processes in a CO2 corrosion system. By measuring the quartz crystal frequency change, EQCM enables precise determination of mass change during FeCO3 formation. Simultaneously, analyzing changes in the measured motional resistance can provide deeper insights into the near surface solution and characteristics associated with development or formation of FeCO3 corrosion product layer. In the present study, the effect of substrate material (gold versus iron) is demonstrated for the formation of FeCO3. Different substrates exhibited distinct behavior in motional resistance and resonance frequency changes, reflecting differences in underlying FeCO3 formation mechanisms. These results demonstrate that EQCM can not only measure mass change but also give mechanistic insights into surface processes during precipitation of FeCO3. The technique offers valuable information for understanding corrosion product formation under corrosive environments. |