Many electrochemical sensing applications are limited by the mass transfer processes. In this study, an out-of-plane vibrating working electrode is developed to improve the mass transfer properties in a liquid environment. The electrode is fabricated by depositing gold on a polymer substrate that can be actuated into vibration by the piezoelectric effect. Computational Fluid Dynamics (CFD) simulation and electrochemical experiments are carried out to investigate the mass transfer rate under the influence of a vibrating substrate in a fundamental mode. Both the simulation and experiment results indicate that by combining vibration and proper working electrode design, an optimal mass transfer per unit area (or current density) can be achieved.
|Original language||English (US)|
|Title of host publication||34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||4|
|State||Published - Jan 25 2021|
|Event||34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021 - Virtual, Gainesville, United States|
Duration: Jan 25 2021 → Jan 29 2021
|Name||Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)|
|Conference||34th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2021|
|Period||1/25/21 → 1/29/21|
Bibliographical noteFunding Information:
Portions of this work were conducted in the Minnesota Nano Center, which is supported by the National Science Foundation through the National Nano Coordinated Infrastructure Network (NNCI) under Award Number ECCS-2025124. The numerical part of this work was carried out using computing resources at the University of Minnesota Supercomputing Institute.
© 2021 IEEE.
- Computational fluid dynamics
- Mass transfer
- Vibrating electrode