We report a novel type of WO3 nanostructure, i.e. nanorolls obtained as a self-assembled thin film on a transparent conductive substrate. The mild conditions of preparation, avoiding the use of HCl, result in an eco-friendly hydrothermal method with reduced crystallization time. FESEM and HR-TEM show that WO3 nanocrystals are made of rolled nanoflakes with a telescope-like appearance at their tip. For their nano-porosity, electrochemical accessibility, good adhesion to substrates and the envisaged presence of nanocavities between the WO3 layers, these materials hold tremendous promise in nano-electronics, electrochromic devices, water photo-splitting cells, Li-ion batteries and nano-templated filters for UV radiation.

WO3 nanorolls self-assembled as thin films by hydrothermal synthesis / Vankova, S; Zanarini, S; Amici, J; Cámara, F; Arletti, R; Bodoardo, S; Penazzi, N. - In: NANOSCALE. - ISSN 2040-3364. - 7:16(2015), pp. 7174-7177. [10.1039/c4nr07290a]

WO3 nanorolls self-assembled as thin films by hydrothermal synthesis

Arletti R;
2015

Abstract

We report a novel type of WO3 nanostructure, i.e. nanorolls obtained as a self-assembled thin film on a transparent conductive substrate. The mild conditions of preparation, avoiding the use of HCl, result in an eco-friendly hydrothermal method with reduced crystallization time. FESEM and HR-TEM show that WO3 nanocrystals are made of rolled nanoflakes with a telescope-like appearance at their tip. For their nano-porosity, electrochemical accessibility, good adhesion to substrates and the envisaged presence of nanocavities between the WO3 layers, these materials hold tremendous promise in nano-electronics, electrochromic devices, water photo-splitting cells, Li-ion batteries and nano-templated filters for UV radiation.
2015
7
16
7174
7177
WO3 nanorolls self-assembled as thin films by hydrothermal synthesis / Vankova, S; Zanarini, S; Amici, J; Cámara, F; Arletti, R; Bodoardo, S; Penazzi, N. - In: NANOSCALE. - ISSN 2040-3364. - 7:16(2015), pp. 7174-7177. [10.1039/c4nr07290a]
Vankova, S; Zanarini, S; Amici, J; Cámara, F; Arletti, R; Bodoardo, S; Penazzi, N
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1181399
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