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\bibitem{Gasparotto_etal2019} {\textquotedblleft}\textit{Controlled Surface Modification of ZnO Nanostructures with Amorphous TiO$_{2}$for Photoelectrochemical Water Splitting}{\textquotedblright}. Gasparotto A, Maccato C, Sada C, Carraro G, Kondarides DI, Bebelis S, Petala A, La Porta A, Altantzis T, Barreca D, Advanced Sustainable Systems , 1900046 (2019).   http://doi.org/10.1002/adsu.201900046

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