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Schematic illustration of synthetic strategy of (a) ZIF-67, (d) Co-based ZIF-L, (g) ZIF-67 rods, and (j) ZIF-67 belts. Corresponding SEM images of (b) ZIF-67, (e) Co-based ZIF-L, (h) ZIF-67 rods, and (k) ZIF-67 belts. TEM images of (c) ZIF-67, (f) Co-based ZIF-L, (i) ZIF-67 rods, and (l) ZIF-67 belts.
