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\bibitem{Dingenen+Verbruggen2021} {\textquotedblleft}\textit{Tapping hydrogen fuel from the ocean : a review on photocatalytic, photoelectrochemical and electrolytic splitting of seawater}{\textquotedblright}. Dingenen F, Verbruggen SW, Renewable \& Sustainable Energy Reviews \textbf{142}, 110866 (2021).   http://doi.org/10.1016/J.RSER.2021.110866

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