@article{Devan2016Highl-35962,
  year={2016},
  doi={10.1039/c6ra11348f},
  title={Highly stable supercapacitive performance of one-dimensional (1D) brookite TiO<sub>2</sub> nanoneedles},
  number={67},
  volume={6},
  journal={RSC Advances},
  pages={62218--62225},
  author={Devan, Rupesh S. and Ma, Yuan-Ron and Patil, Ranjit A. and Schmidt-Mende, Lukas}
}

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    <dc:contributor>Schmidt-Mende, Lukas</dc:contributor>
    <dcterms:title>Highly stable supercapacitive performance of one-dimensional (1D) brookite TiO&lt;sub&gt;2&lt;/sub&gt; nanoneedles</dcterms:title>
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    <dcterms:abstract xml:lang="eng">We report the highly stable supercapacitive performance of one-dimensional (1D) nanoneedles of brookite (β) TiO&lt;sub&gt;2&lt;/sub&gt; synthesized on a conducting glass substrate. The 1D β-TiO&lt;sub&gt;2&lt;/sub&gt; nanoneedles synthesized over a large area array utilizing hot-filament metal vapor deposition (HFMVD) were ∼24–26 nm wide, ∼650 nm long and tapered in a downward direction. X-ray photoemission spectroscopy (XPS) revealed their chemical properties and stoichiometric Ti and O composition. The 1D β-TiO&lt;sub&gt;2&lt;/sub&gt; nanoneedles execute as parallel units for charge storage, yielding a specific capacitance of 34.1 mF g&lt;sup&gt;−1&lt;/sup&gt;. Electrochemical impedance spectroscopy revealed that the large surface area and brookite crystalline nature of the 1D nanoneedles provided easy access to Na&lt;sup&gt;+&lt;/sup&gt; ions, and resulted in low diffusion resistance, playing a key role in their stable charging–discharging electrochemical mechanism. Moreover, the non-faradic mechanism of these nanoneedles delivered better durability and high stability up to 10 000 cycles, and a columbic efficiency of 98%. Therefore, 1D β-TiO&lt;sub&gt;2&lt;/sub&gt; nanoneedles hold potential as an electrode material for highly stable supercapacitive performance with long cycle lifetime.</dcterms:abstract>
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    <dc:contributor>Devan, Rupesh S.</dc:contributor>
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    <dcterms:issued>2016</dcterms:issued>
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    <dc:contributor>Patil, Ranjit A.</dc:contributor>
    <dc:creator>Devan, Rupesh S.</dc:creator>
    <dc:creator>Patil, Ranjit A.</dc:creator>
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