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. 2022 Jan 20;9(8):2104749. doi: 10.1002/advs.202104749

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© 2022 The Authors. Advanced Science published by Wiley‐VCH GmbH

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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TEM images of colloidal a) CeO₂ and b) Cu nanocrystals with the inset showing the corresponding high‐resolution HAADF‐STEM images. c) Schematic illustrating the interfacial restructuring strategy, and the HAABF‐STEM image of the calcinated 10CuO/CeO₂₋ _x nanopowders. The inset displays the high‐resolution HAADF‐STEM image of the 10CuO/CeO₂₋ _x nanocrystals with the well‐retained truncated octahedral shape upon calcination (scale bar: 1 nm). The {111} and {200} facet is highlighted using the green and yellow dotted lines, respectively. d) HAADF‐STEM image with the corresponding EDS element maps of 10CuO/CeO₂₋ _x .