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https://doi.org/10.5562/cca3424

Non–enzymatic Amperometric Sensor for H2O2 Based on MnCO3 Thin Film Electrodes

Sasho Stojkovikj   ORCID icon orcid.org/0000-0002-3346-2143 ; Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Arhimedova 3, PO Box 162, 1000 Skopje, Republic of Macedonia
Metodija Najdoski ; Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Arhimedova 3, PO Box 162, 1000 Skopje, Republic of Macedonia
Birhan Sefer   ORCID icon orcid.org/0000-0002-3492-9710 ; Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Arhimedova 3, PO Box 162, 1000 Skopje, Republic of Macedonia
Valentin Mirčeski ; Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University, Arhimedova 3, PO Box 162, 1000 Skopje, Republic of Macedonia

Puni tekst: engleski, pdf (16 MB) str. 567-575 preuzimanja: 127* citiraj
APA 6th Edition
Stojkovikj, S., Najdoski, M., Sefer, B. i Mirčeski, V. (2018). Non–enzymatic Amperometric Sensor for H2O2 Based on MnCO3 Thin Film Electrodes. Croatica Chemica Acta, 91 (4), 567-575. https://doi.org/10.5562/cca3424
MLA 8th Edition
Stojkovikj, Sasho, et al. "Non–enzymatic Amperometric Sensor for H2O2 Based on MnCO3 Thin Film Electrodes." Croatica Chemica Acta, vol. 91, br. 4, 2018, str. 567-575. https://doi.org/10.5562/cca3424. Citirano 13.12.2019.
Chicago 17th Edition
Stojkovikj, Sasho, Metodija Najdoski, Birhan Sefer i Valentin Mirčeski. "Non–enzymatic Amperometric Sensor for H2O2 Based on MnCO3 Thin Film Electrodes." Croatica Chemica Acta 91, br. 4 (2018): 567-575. https://doi.org/10.5562/cca3424
Harvard
Stojkovikj, S., et al. (2018). 'Non–enzymatic Amperometric Sensor for H2O2 Based on MnCO3 Thin Film Electrodes', Croatica Chemica Acta, 91(4), str. 567-575. https://doi.org/10.5562/cca3424
Vancouver
Stojkovikj S, Najdoski M, Sefer B, Mirčeski V. Non–enzymatic Amperometric Sensor for H2O2 Based on MnCO3 Thin Film Electrodes. Croatica Chemica Acta [Internet]. 2018 [pristupljeno 13.12.2019.];91(4):567-575. https://doi.org/10.5562/cca3424
IEEE
S. Stojkovikj, M. Najdoski, B. Sefer i V. Mirčeski, "Non–enzymatic Amperometric Sensor for H2O2 Based on MnCO3 Thin Film Electrodes", Croatica Chemica Acta, vol.91, br. 4, str. 567-575, 2018. [Online]. https://doi.org/10.5562/cca3424

Sažetak
The present study describes development of a non–enzymatic amperometric sensor for detection of H2O2 based on MnCO3 thin film electrodes. The film was deposited on electroconductive FTO coated glass substrates using simple chemical bath deposition method. The phase composition of the thin film was confirmed by X-ray diffraction analysis. The electrochemical properties and the sensor sensitivity towards H2O2 were examined using cyclic voltammetry and chronoamperometry in 0.1 M phosphate buffer solution with pH = 7.5. It was revealed that the sensing mechanism is based on electrocatalytic oxidation of H2O2, involving Mn species as redox mediators. According to the results, the best sensor response towards H2O2 was found at E = +0.25 V, with detection limit and sensor sensitivity of 10.0 µM and 2.64 µA cm–2 mM–1 (for the range of 0.09–1.8 mM), respectively, associated with R2 = 0.999.

Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi
amperometric sensors; hydrogen peroxide; manganese(II) carbonate thin films; electrocatalysis

Hrčak ID: 216123

URI
https://hrcak.srce.hr/216123

Posjeta: 195 *