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α-Fe2O3 lithium battery anodes by nanocasting strategy from ordered 2D and 3D templates

Authors
Journal
Journal of Alloys and Compounds
0925-8388
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/j.jallcom.2013.12.062
Keywords
  • Iron Oxide
  • Mesoporous Mcm-41 Silica
  • Mesoporous Mcm-48
  • Nanocasting
  • Lithium Battery Anode
Disciplines
  • Chemistry

Abstract

Abstract Nanocasting strategy is here proposed as effective approach to tune structure and size of α-Fe2O3 active nanoparticles as a promising anode material for Li-ion cells. MCM-41 and MCM-48 silicas, presenting hexagonal 2D and cubic 3D symmetry, respectively, and regular pore diameter of about 4nm are selected as moulds. The structural–morphological and electrochemical characteristics are assessed by X-ray diffraction, transmission electron microscopy, N2 physisorption at 77K, cyclic voltammetry and galvanostatic discharge/charge cycling. It is here demonstrated that structural–morphological features change accordingly to the template used and careful control of the texture/particle characteristics is likely a fundamental variable noticeably affecting the cycling behaviour.

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