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Issue 45, 2013
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Fluorine doped Fe2O3 nanostructures by a one-pot plasma-assisted strategy

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The present work reports on the synthesis of fluorine doped Fe2O3 nanomaterials by a single-step plasma enhanced-chemical vapor deposition (PE-CVD) strategy. In particular, Fe(hfa)2TMEDA (hfa = 1,1,1,5,5,5-hexafluoro-2,4-pentanedionate; TMEDA = N,N,N′,N′-tetramethylethylenediamine) was used as molecular source for both Fe and F in Ar/O2 plasmas. The structure, morphology and chemical composition of the synthesized nanosystems were thoroughly analyzed by two-dimensional X-ray diffraction (XRD2), field emission-scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), secondary ion mass spectrometry (SIMS) and transmission electron microscopy (TEM). A suitable choice of processing parameters enabled the selective formation of α-Fe2O3 nanomaterials, characterized by an homogeneous F doping, even at 100 °C. Interestingly, a simultaneous control of the system nanoscale organization and fluorine content could be achieved by varying the sole growth temperature. The tailored properties of the resulting materials can be favourably exploited for several technological applications, ranging from photocatalysis, to photoelectrochemical cells and gas sensing.

Graphical abstract: Fluorine doped Fe2O3 nanostructures by a one-pot plasma-assisted strategy

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The article was received on 19 Jul 2013, accepted on 30 Sep 2013 and first published on 03 Oct 2013

Article type: Paper
DOI: 10.1039/C3RA43775B
Citation: RSC Adv., 2013,3, 23762-23768

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    Fluorine doped Fe2O3 nanostructures by a one-pot plasma-assisted strategy

    G. Carraro, A. Gasparotto, C. Maccato, E. Bontempi, O. I. Lebedev, S. Turner, C. Sada, L. E. Depero, G. Van Tendeloo and D. Barreca, RSC Adv., 2013, 3, 23762
    DOI: 10.1039/C3RA43775B

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