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. 2022 May 10;12(10):1628. doi: 10.3390/nano12101628

Figure 2.

Figure 2

SEM images of the multi-layered porous structure of the CeO2-Pd-PDA/rGO heterojunction nanocomposite with wrinkles and open edges at different magnifications. Scale bar: (a) 5 µm, (b) 1 µm, and (c) 500 nm.