Figure 1.
TEM image (A) and particle size distribution (B) of fresh pristine halloysite (HNT)@Ru-1 (a), HNT@Ru-2 (b), and HNT@Ru-3 (c) (left), and spent HNT@Ru-1 (a), HNT@Ru-2 (b), and HNT@Ru-3 (c) (right).
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