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. 2024 Feb 3;15:1010. doi: 10.1038/s41467-024-45255-6

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — XRD patterns (a), Raman spectra (b) and Ce 3d photoelectron profiles (c) of the CeO₂ and Cu-CeO₂ catalysts, d XANES spectra of Cu foil, CuO and Cu-CeO₂ sample, e Fourier transforms of the Cu K-edge EXAFS oscillations of the materials mentioned above, f FT-EXAFS spectra of Cu-CeO₂ sample at the Cu K-edge and the corresponding Fitting results. Source data are provided as a Source Data file.