Reliable glucose sensing properties of electrodeposited vertically aligned manganese oxide thin film electrode
Autor: | P. N. Pawaskar, Umakant M. Patil, S. R. Sabale, C.D. Lokhande, D.B. Malavekar, S.B. Kale, S. B. Jadhav |
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Rok vydání: | 2021 |
Předmět: |
010302 applied physics
Materials science 02 engineering and technology General Chemistry Substrate (electronics) 021001 nanoscience & nanotechnology 01 natural sciences Amperometry Anode Chemical state X-ray photoelectron spectroscopy Chemical engineering 0103 physical sciences Electrode General Materials Science Cyclic voltammetry Thin film 0210 nano-technology |
Zdroj: | Applied Physics A. 127 |
ISSN: | 1432-0630 0947-8396 |
DOI: | 10.1007/s00339-021-04544-3 |
Popis: | In this work, vertically aligned nanosheets of manganese oxide (MnO2) were deposited on stainless steel (SS) substrate via binder free anodic electrodeposition method. The MnO2 films were characterized with X-ray diffraction, energy dispersive X-ray spectroscopy, field emission scanning electron microscopy and X-ray photoelectron spectroscopy to study the crystal structure, elemental composition, morphology and chemical state. Further, the films were explored as an electrode for electrochemical detection of glucose by cyclic voltammetry and i–t amperometric techniques using three electrode system. The sensitivity of 4341 µA mM−1 cm−2 at working potential of 0.5 V/SCE was shown by MnO2 electrode with wide linear range of 50 µM–1.2 mM having lower detection limit of 0.53 µM. This result points that the vertically aligned nanosheets of MnO2 thin film can be a promising candidate for enzymeless glucose sensing. |
Databáze: | OpenAIRE |
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