Cu/Electrochemically reduced graphene oxide layered nanocomposite for non-enzymatic H2O2 sensor. (2021)

• Record Type: Journal Article
• Authors: Temur, Elif; Eryiğit, Mesut; Kurt Urhan, Bingül; Demir, Ümit; Öznülüer Özer, Tuba
• Is Part Of: Materials today. Volume 46:Part 16(2021)
• Page Start: 6971
• Page End: 6975
• Publication Date: 2021
• Subjects: Reduced graphene oxide -- Graphene nanocomposite -- H2O2 reduction; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.03.273
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: 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 H2 O2 . 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 H2 O2, compared to naked Au and Cu-modified Au electrodes, in terms of low working potential (at around −0.2 V), high sensitivity (20 μA cm −2 mM −1 ), and low detection limit (1.87 × 10 −9 mol.L −1 ).