期刊
MICROCHEMICAL JOURNAL
卷 155, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.microc.2020.104687
关键词
Inkjet Printing; Flexible Paper Electrodes; Nano-Ink; Cyclic Voltammetric Analyses
资金
- Science and Engineering Research Board (SERB), New Delhi [EMR/2016/005813]
- Council of Scientific & Industrial Research(CSIR, New Delhi) [09/266(0078)/2017-EMR-I]
Development of low-cost paper based disposable electrodes printed with silver nano-ink using desktop inkjet printer is reported in this work. A stable nano-ink was prepared by dissolving 3% silver nanoparticles (AgNPs) capped with polyvinylpyrrolidone (PVP) in ethanol as a dispersing solvent. Highly stable silver nano-ink with surface tension of 21.1 mN/M and viscosity of 2.6 mPa.S was prepared for printing on photo paper that can be used as an electrode for electrochemical analyses. The fabricated paper electrode was exploited as a counter electrode in cyclic voltammetry (CV) analysis of potassium ferricyanide with better stability and reproducibility (relative standard deviation (RSD) 1.6%) for multiple times of analyses (n = 60) and compared with the results of conventional electrodes. Further, the printed paper electrode was demonstrated to be used as a working electrode for analysis of nitrate by CV. The use of paper electrode is found to be simple, rapid, user-friendly and can be applied at the sample source for determination of nitrate from different samples.
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