Research Article

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2011, 4(1): 124–130

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https://doi.org/10.1007/s12274-010-0069-6

Preparation, Characterization, and Electrocatalytic Performance of Graphene–Methylene Blue Thin Films

Dan Wang, Yanguang Li, Panitat Hasin, and Yiying Wu ()

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Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA
Present address: Department of Chemical and Biomolecular Engineering, Ohio University, Athens, Ohio 45701, USA
Present address: Department of Chemistry, Stanford University, Stanford, CA 94305, USA

Keywords: Graphene, electrocatalysis, methylene blue, β-nicotinamide adenine dinucleotide (NADH)
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We report a general method to graft aromatic molecules onto graphene thin film electrodes through a simple immersion process. Large-area electroactive graphene thin films grafted with methylene blue (MB) have been developed as electrocatalytic electrodes for the oxidation of β-nicotinamide adenine dinucleotide (NADH). The oxidation of NADH starts from –0.08 V (vs. Ag/AgCl) at the graphene–MB thin film electrodes, showing a decrease of 530 mV in overpotential compared to a Ti metal electrode. The graphene–MB thin films have promising applications in biosensors and biofuel cells due to their ability to promote NADH electron transfer reaction.
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Preparation, Characterization, and Electrocatalytic Performance of Graphene–Methylene Blue Thin Films. Nano Res. 2011, 4(1): 124–130 https://doi.org/10.1007/s12274-010-0069-6

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