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One-Step Electrochemical Approach to the Synthesis of Graphene/MnO2 Nanowall Hybrids
Abstract
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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Pages 648-657
Cite this article:
Zhu C, Guo S, Fang Y, et al. One-Step Electrochemical Approach to the Synthesis of Graphene/MnO2 Nanowall Hybrids. Nano Research, 2011, 4(7): 648-657. https://doi.org/10.1007/s12274-011-0120-2
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