Cu/Electrochemically reduced graphene oxide layered nanocomposite for non-enzymatic H2O2 sensor
| Autor: | Ümit Demir, Tuba Öznülüer Özer, Mesut Eryiğit, Bingül Kurt Urhan, Elif Temur |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Detection limit Materials science Nanocomposite Graphene Oxide 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Amperometry law.invention chemistry.chemical_compound Non enzymatic Chemical engineering X-ray photoelectron spectroscopy chemistry law 0103 physical sciences Electrode 0210 nano-technology |
| Zdroj: | Materials Today: Proceedings. 46:6971-6975 |
| ISSN: | 2214-7853 |
| Popis: | In this present study, we modified the Au surface with nanocomposite containing Cu nanoparticles and electrochemically reduced graphene oxide (ERGO) to increase the electrocatalytic performance of Au electrode for nonenzymatic amperometric detection of H2O2. The morphology and structural properties of the Cu/ERGO nanocomposites were investigated by XPS, XRD, STM and SEM techniques. The Cu/ERGO nanocomposite electrode displayed good performance for the electrochemical detection of H2O2, compared to naked Au and Cu-modified Au electrodes, in terms of low working potential (at around -0.2 V), high sensitivity (20 lA cm(-2) mM(-1)), and low detection limit (1.87 x 10(-9) mol.L-1). (c) 2021 Elsevier Ltd. Selection and peer-review under responsibility of the scientific committee of the International Congress on Semiconductor Materials and Devices, ICSMD2018. |
| Databáze: | OpenAIRE |
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