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\bibitem{Ying_etal2023} {\textquotedblleft}\textit{Fractal design of hierarchical PtPd with enhanced exposed surface atoms for highly catalytic activity and stability}{\textquotedblright}. Ying J, Xiao Y, Chen J, Hu Z-Y, Tian G, Van Tendeloo G, Zhang Y, Symes MDD, Janiak C, Yang X-Y, Nano letters \textbf{23}, 7371 (2023).   http://doi.org/10.1021/ACS.NANOLETT.3C01190

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