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Nanoporous hexagonal TiO superstructure as a multifunctional material for energy conversion and storage

Journal of Materials Chemistry A, ISSN: 2050-7496, Vol: 3, Issue: 7, Page: 3500-3510
2015
  • 31
    Citations
  • 0
    Usage
  • 17
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    31
    • Citation Indexes
      31
  • Captures
    17

Article Description

Tremendous efforts have been devoted for the development of rationally designed titanium dioxide (TiO) nanostructures, because structural characteristics such as morphology, porosity, size, and crystal phase significantly affect the physical properties of TiO. Despite the significant advances made in synthesis strategies over the past few decades, designing an innovative TiO nanostructure that overcomes the limitations that TiO encounters in various applications remains a great challenge. In this study, we demonstrate the synthesis of a hierarchically nanostructured TiO having a higher symmetry (hexagonal structure) than its own constituent tectons. Anatase TiO possesses only a primitive tetragonal unit cell, and there is no hexagonal symmetry axis. Thus, a hexagonal TiO superstructure is hardly obtainable without the multiple twinning of primitive units, which rarely occurs under conventional reaction conditions. Our exotic TiO nanostructure is synthesized by the calcination of a novel TiO precursor that is formed by a simple precipitation reaction and is utilized as an electrode material in energy conversion and storage devices. Due to the unique physical properties offered by this morphology, nanoporous hexagonal TiO is superior to conventionally used TiO in these applications, highlighting the benefits as an advanced, multifunctional electrode material.

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