Fabrication of a PVC-based solid-state Ag/AgCl reference electrode
Journal
ISOEN 2019 - 18th International Symposium on Olfaction and Electronic Nose, Proceedings
ISBN
9781538683279
Date Issued
2019-05-01
Author(s)
Wu, Yi Min
Abstract
© 2019 IEEE. A solid-state reference electrode (SSRE) is similar to a traditional reference electrode in configuration but has no inner solution. Its layer-by-layer structure influences the stability of an SSRE because of the difference of junction potential between the surfaces. In this work, a SSRE of PVC/PVC-KCl/AgCl/Ag was fabricated and studied. The results confirmed that the proportion of AgCl on the electrode surface affected the stability of reference potential. Besides, PVC membrane coated on the top of electrode controlled the entrance of different ions from the analyte solution. Finally, the optimized SSRE was applied in a electrochemical three-electrode system. In sum, we have built the fabrication process of a PVC-based SSRE and demonstrated its feasibility for sensor applications.
Subjects
Ag/AgCl | junction layer | PVC | reference electrode | solid-state
SDGs
Type
conference paper