Applied Catalysis B: Environmental 235 (2018) 56–65 Contents lists available at ScienceDirect Applied Catalysis B: Environmental journal homepage: www.elsevier.com/locate/apcatb Fabrication of underpotentially deposited Cu monolayer/electrochemically reduced graphene oxide layered nanocomposites for enhanced ethanol electro-oxidation a a a,b, Tuba Öznülüer , Ümit Demir , Hülya Öztürk Doğan Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, 25240, Turkey Department of Chemistry and Chemical Processing Technologies, Erzurum Vocational College, Atatürk University, Erzurum, 25240, Turkey ARTIC L E I NF O ABSTRAC T Keywords: Cu monolayer/electrochemically reduced graphene oxide (ML/ERGO) layered nanocomposites are grown on Au Electrochemical reduced graphene oxide substrates by sequential underpotential deposition of Cu(ML)s and electrochemical reduction of graphene oxide Nanocomposite for the electrocatalytic oxidation of ethanol. Characterization of the Au-Cu(ML)/ERGO layered composites by Electrochemical oxidation of ethanol scanning electron microscopy and scanning tunneling microscopy reveal that the smooth Cu(ML) on the Au Electrocatalysis surface is transformed into parallel aligned nanoparticles after modiﬁcation by the ERGO layer. X-ray photo- electron spectroscopy and Raman spectroscopy results for the Au-Cu(ML)/ERGO composites show the successful electrochemical reduction of GO to ERGO and the presence of metallic Cu in the nanocomposite structure. Electrochemical measurements of the as-prepared Au-(Cu(ML)/ERGO) electrodes exhibit excellent electro- −2
Applied Catalysis B: Environmental – Elsevier
Published: Nov 5, 2018
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