Abstract
The reductive co-electropolymerization of vinyl-substituted ruthenium complexes 2(PF6) and 3(PF6)2 at ITO glass electrodes have afforded adherent metallopolymeric films, where complex 2(PF6) contains a dipicolylamine (DPA) unit as the ion recognition site and 3(PF6)2 is a ruthenium monomer without DPA. The resulting thin films can selectively detect Cu2+ at the solid-liquid interface on the basis of color, absorption, and electrochemical changes. By using EDTA to remove the incorporated Cu2+, the polymeric film can repeatedly detect Cu2+ with good reversibility and film stability, as supported by XPS and TEM analyses.
Original language | English |
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Pages (from-to) | 748-753 |
Number of pages | 6 |
Journal | Electrochimica Acta |
Volume | 130 |
DOIs | |
Publication status | Published - 1 Jun 2014 |
Externally published | Yes |
Keywords
- Cu sensor
- Cyclometalated Ruthenium
- Dipicolylamine
- Electropolymerization
- Vinyl-Substituted Complexes