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. 2021 Sep 6;12:5273. doi: 10.1038/s41467-021-25600-9

Fig. 1. Synthetic scheme and characterizations of synthesized catalysts.

Fig. 1

a Synthetic strategy of PdZn/NC@ZnO. b TEM image of ZnO nanorods. Scale bar, 50 nm. c TEM image of ZnO@PDA. Scale bar, 100 nm. d STEM image of PdZn/NC@ZnO, the inset is the size distribution histogram of PdZn nanoparticles in PdZn/NC@ZnO. Scale bar, 50 nm. e EDS line scanning profile across one PdZn nanoparticle in PdZn/NC@ZnO. The signals were collected from the Pd L edge and the Zn K-edge. Scale bar, 10 nm. f AC HAADF-STEM image of one PdZn nanoparticle in PdZn/NC@ZnO. Scale bar, 2 nm. g AC HAADF-STEM elemental mappings of one PdZn nanoparticle in PdZn/NC@ZnO. Scale bar, 2 nm. h STEM image of Pdn/NC@ZnO, the inset is the size distribution histogram of Pd nanoparticles in Pdn/NC@ZnO. Scale bar, 20 nm. i AC HAADF-STEM image of Pd1/NC@ZnO. Scale bar, 5 nm.