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. 2016 Dec 22;7:14036. doi: 10.1038/ncomms14036

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Copyright © 2016, The Author(s)

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(a) HAADF-STEM image of 0.2%Rh/CoO single-atom structures. Rh single atoms marked in white circles are uniformly dispersed on the CoO nanosheets and occupy exactly the positions of Co atoms. (b) Magnified HAADF-STEM image of 0.2%Rh/CoO corresponding to the area of the white square in a. (c) Intensity profile along the line X–Y in the magnified HAADF-STEM image (b). (d) Rh K-edge XANES profiles for Rh/CoO with different Rh loadings. (e) Rh K-edge EXAFS spectra in R space for Rh/CoO with different Rh loadings. (f) XPS spectra of Rh/CoO with different Rh loadings.