4.6 Article

Hematite nanodiscs exposing (001) facets: synthesis, formation mechanism and application for Li-ion batteries

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 1, Issue 17, Pages 5232-5237

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta01539d

Keywords

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Funding

  1. State Key Project of Fundamental Research for Nanoscience and Nanotechnology [2011CB932401, 2011CBA00500]
  2. NSFC [21171105, 21231005]

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27 nm thick hematite nanodiscs have been prepared by a facile solvothermal method. The growth of Fe2O3 nanodiscs follows the precipitation-dissolution-growth mechanism, and the (001) facets are preferentially exposed since (001) facets are the densest and therefore most stable facets. In particular, outstanding rate and cycling capabilities have been demonstrated for the nanodiscs due to the reduced Li+ diffusion distance and enhanced reactivity of the nanosized structures.

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