Interlinked multiphase Fe-doped MnO2 nanostructures: a novel design for enhanced pseudocapacitive performance.

@article{Wang2016InterlinkedMF,
  title={Interlinked multiphase Fe-doped MnO2 nanostructures: a novel design for enhanced pseudocapacitive performance.},
  author={Ziya Wang and Fengping Wang and Yan Li and Jianling Hu and Yanzhen Lu and Mei Xu},
  journal={Nanoscale},
  year={2016},
  volume={8 13},
  pages={
          7309-17
        }
}
Structure designing and morphology control can lead to high performance pseudocapacitive materials for supercapacitors. In this work, we have designed interlinked multiphase Fe-doped MnO2 nanostructures (α-MnO2/R-MnO2/ε-MnO2) to enhance the electrochemical properties by a facile method. These hierarchical hollow microspheres assembled by interconnected nanoflakes, and with plenty of porous nanorods radiating from the spherical shells were hydrothermally obtained. The supercapacitor electrode… 
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References

SHOWING 1-10 OF 59 REFERENCES
Enhancing the supercapacitor performance of graphene/MnO2 nanostructured electrodes by conductive wrapping.
TLDR
By 3D conductive wrapping of graphene/MnO2 nanostructures with carbon nanotubes or conducting polymer, specific capacitance of the electrodes has substantially increased by ∼20% and ∼45%, respectively, with values as high as ∼380 F/g achieved.
Shape-Controlled Synthesis of 3D Hierarchical MnO2 Nanostructures for Electrochemical Supercapacitors
A simple hydrothermal method has been used to fabricate sea urchin shaped α-MnO2 without using any template and surfactant. When other conditions were kept the same and Al3+ exists in the solution,
High performance flexible solid-state asymmetric supercapacitors from MnO2/ZnO core–shell nanorods//specially reduced graphene oxide
With a view to developing flexible solid-state asymmetric supercapacitors, we have specially designed and nanoscopically engineered two types of electrodes: a MnO2/ZnO core–shell nanorod array and a
Remarkable Capacity Retention of Nanostructured Manganese Oxide upon Cycling as an Electrode Material for Supercapacitor
Electrochemical capacity retention of nearly X-ray amorphous nanostructured manganese oxide (nanoMnO2) synthesized by mixing directly KMnO4 with ethylene glycol under ambient conditions for
VO2 nanoflake arrays for supercapacitor and Li-ion battery electrodes: performance enhancement by hydrogen molybdenum bronze as an efficient shell material
Hydrogen molybdenum bronze (HMB) is electrochemically deposited as a homogeneous shell on VO2 nanoflakes grown on graphene foam (GF), forming a GF + VO2/HMB integrated electrode structure. Asymmetric
Graphene oxide--MnO2 nanocomposites for supercapacitors.
TLDR
This method provides a facile and straightforward approach to deposit MnO(2) nanoparticles onto the graphene oxide sheets (single layer of graphite oxide) and may be readily extended to the preparation of other classes of hybrids based on GO sheets for technological applications.
Flexible all-solid-state asymmetric supercapacitors with three-dimensional CoSe2/carbon cloth electrodes
As electrode materials for energy storage devices, metal chalcogenides have recently attracted great attention due to their unique structure related electrochemical properties. In this paper,
...
...