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\bibitem{Gasparotto_etal2011} {\textquotedblleft}\textit{F-doped Co$_{3}$O$_{4}$ photocatalysts for sustainable H$_{2}$ generation from water/ethanol}{\textquotedblright}. Gasparotto A, Barreca D, Bekermann D, Devi A, Fischer RA, Fornasiero P, Gombac V, Lebedev OI, Maccato C, Montini T, Van Tendeloo G, Tondello E, Journal of the American Chemical Society \textbf{133}, 19362 (2011).   http://doi.org/10.1021/ja210078d

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