Communication—Electrochemical Impedance Signature of a Non-Planar, Interdigitated, Flow-Through, Porous, Carbon-Based Microelectrode
Year: 2019
Type: article
Abstract: Top and bottom microelectrode glass slide sandwiches a channel made of adhesive tape and packed with reduced graphene oxide to make a new non-planar interdigitated microfluidic device. Novel device integration allows packing of any transducer material at room temperature with no instrument. Electrical impedance spectroscopy signal is stable over long times, fits an equivalent circuit with well-defined circuit elements. Flow visualization concurs that electric double-layer signal shifts to high frequency due to disruption of the diffusive process from increased convective flow. Charge transfer resistance appears at higher frequencies making the device rapid with high signal to noise ratio.
DOI: 10.1149/2.0041916jes
Authors: Zhenglong Li, Yu-Hsuan Cheng, Lixin Feng, De Dios Felix, Jacob Neil, Reis Moura Pedro Antonio, Maryom Rahman, Juliana Yang, Samar Azizighannad, Somenath Mitra, Sagnik Basuray
Institution: New Jersey Institute of Technology
Language: English
Subfield: Electrochemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,950
Award: G301996855
OpenAlex ID: W2989804592