Synthesis of Graphene Nanocomposites with Sandwiched Electroactive Methylene Blue for Electrochemical Application

Abstract:

A novel nanocomposite (MB/CRG) was fabricated by a simple and fast method. The method is as follows: graphene oxide (GO) was dispersed in methylene blue (MB), and then the MB/GO was chemically reduced to MB/chemically reduced graphene (MB/CRG) by hydrazine hydrate. MB can greatly improves the dispersity of CRG in water and at the same time, the electrochemical activity of MB/CRG nanocomposite increased. The MB/CRG nanocomposite was used to modify the glass carbon electrode (GCE), and the MB/CRG/GCE was obtained. We investigated the electrochemical behavior of uric acid, NaNO₂, Quercetin and p-nitrophenol at MB/CRG/GCE and found that the modified electrode had the best catalysis towards these molecules compared with MB/GCE and CRG/GCE. The MB/CRG/GCE showed good reproducibility and stability.

• Periodical: Advanced Materials Research (Volume 709)
• Pages: 3-6
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.709.3
• Online since: June 2013
• Authors: Xin Mei Guo, Jian Fei Xia, Zong Hua Wang, Yan Zhi Xia, Fei Fei Zhang, Lin Hua Xia
• Keywords: Electrochemical Activity, Graphene (GR), Methylene Blue, Modified Electrode

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DOI: 10.1021/ja01539a017