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 4 nm are selected as moulds. The structural–morphological and electrochemical characteristics are assessed by X-ray diffraction, transmission electron microscopy, N2 physisorption at 77 K, 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.

α-Fe2O3 lithium battery anodes by nanocasting strategy from ordered 2D and 3D templates / DI LUPO, Francesca; Gerbaldi, Claudio; Casino, Simone; Francia, Carlotta; Meligrana, Giuseppina; Tuel, A.; Penazzi, Nerino. - In: JOURNAL OF ALLOYS AND COMPOUNDS. - ISSN 0925-8388. - STAMPA. - 615:Supplement 1(2014), pp. S482-S486. [10.1016/j.jallcom.2013.12.062]

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

DI LUPO, FRANCESCA;GERBALDI, CLAUDIO;CASINO, SIMONE;FRANCIA, Carlotta;MELIGRANA, Giuseppina;PENAZZI, NERINO
2014

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 4 nm are selected as moulds. The structural–morphological and electrochemical characteristics are assessed by X-ray diffraction, transmission electron microscopy, N2 physisorption at 77 K, 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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2566137
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