Research Article


2011, 4(7): 648–657


One-Step Electrochemical Approach to the Synthesis of Graphene/MnO2 Nanowall Hybrids

Chengzhou Zhu, Shaojun Guo, Youxing Fang, Lei Han, Erkang Wang, and Shaojun Dong ()

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State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Keywords: Graphene, manganese dioxide, nanocomposites, electrochemical reduction
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  • Abstract
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We have demonstrated a one-step and effective electrochemical method to synthesize graphene/MnO2 nanowall hybrids (GMHs). Graphene oxide (GO) was electrochemically reduced to graphene (GN), accompanied by the simultaneous formation of MnO2 with a nanowall morphology via cathodic electrochemical deposition. The morphology and structure of the GMHs were systematically characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and Raman spectroscopy. The resulting GMHs combine the advantages of GN and the nanowall array morphology of MnO2 in providing a conductive network of amorphous nanocomposite, which shows good electrochemical capacitive behavior. This simple approach should find practical applications in the large-scale production of GMHs.
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One-Step Electrochemical Approach to the Synthesis of Graphene/MnO2 Nanowall Hybrids. Nano Res. 2011, 4(7): 648–657

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