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FE-SEM
images of (a) ZO-6, (b) ZO-8, (c) ZO-12, and (d) ZIS/ZO-12.
TEM (e) and HR-TEM (f, g) images show the corresponding FFT patterns
for the marked square areas of ZIZ/ZO-12. (h) HAADF-STEM and corresponding
EDS elemental map images for the ZIS/ZO-12 catalyst.