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Molybdenum dioxide-anchored graphene foam as a negative electrode material for supercapacitors

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Abstract

Molybdenum dioxide nanoparticles of diameter 100 nm were anchored uniformly to a three-dimensional (3D) graphene foam using an ultrasonication-assisted deposition method. X-ray diffraction and Raman spectroscopy indicated that the molybdenum dioxide nanoparticles had a monoclinic crystal structure. The 3D graphene/MoO2 nanoparticle composite showed excellent pseudocapacitive ability as its specific capacitance reached 404 F g−1 at a scan rate of 2 mV s−1 in the negative potential range, −1.0 to −0.2 V, in a neutral solution. Overall, the 3D graphene/MoO2 nanoparticle composite has great potential as an anode material for the next generation of high-performance supercapacitors.

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Authors and Affiliations

  1. School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, P. R. China

    Xuemei Mu, Jinyuan Zhou, Erqing Xie & Zhenxing Zhang

  2. Cuiying Honors College, Lanzhou University, Lanzhou, 730000, P. R. China

    Xiaozhi Liu & Ke Zhang

  3. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000, P. R. China

    Jian Li, Jinyuan Zhou, Erqing Xie & Zhenxing Zhang

Authors
  1. Xuemei Mu
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  2. Xiaozhi Liu
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  3. Ke Zhang
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  4. Jian Li
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  5. Jinyuan Zhou
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  6. Erqing Xie
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  7. Zhenxing Zhang
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Correspondence to Zhenxing Zhang.

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Mu, X., Liu, X., Zhang, K. et al. Molybdenum dioxide-anchored graphene foam as a negative electrode material for supercapacitors. Electron. Mater. Lett. 12, 296–300 (2016). https://doi.org/10.1007/s13391-015-5382-5

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  • DOI: https://doi.org/10.1007/s13391-015-5382-5

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