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\bibitem{Sliem_etal2012} {\textquotedblleft}\textit{Preparation, microstructure characterization and catalytic performance of Cu/ZnO and ZnO/Cu composite nanoparticles for liquid phase methanol synthesis}{\textquotedblright}. Sliem MA, Turner S, Heeskens D, Kalidindi SB, Van Tendeloo G, Muhler M, Fischer RA, Physical chemistry, chemical physics \textbf{14}, 8170 (2012).   http://doi.org/10.1039/c2cp40482f

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