Journal
ANALYTICAL CHEMISTRY
Volume 91, Issue 24, Pages 15539-15546Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.9b03441
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Funding
- Universitat AutOnoma de Barcelona (UAB)
- Spanish Ministerio de Economia y Competitividad y Fondo Europeo de Desarrollo Regional (MINECO/FEDER, UE) [RTI2018-099362-B-C21, RTI2018-096786-B-I00]
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With a growing demand for the availability of inexpensive, simple, and rapid prototyped devices, the prospect of miniaturization of the reference electrodes using printing techniques becomes promising. A stable and reusable full-inkjet-printed solid-state reference electrode (IPRE) was developed. The reference electrode was fully produced by consecutive inkjet printing of several layers. Ag ink was printed and chlorinated by NaClO printing, forming a Ag/AgCl pseudoreference electrode. Then a surface protection by printing a Cl--saturated polyvinyl butyral membrane finally gave a reference electrode that demonstrated an outstanding performance comparable to commercial ones. This full inkjet printing fabrication strategy will improve the viability of producing low-cost miniaturized reference electrodes with interest in many electrochemical sensor-dependent areas.
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