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. 2021 Mar 29;3(10):2741–2776. doi: 10.1039/d1na00050k

Fig. 8. (A) SEM images of bulk WS2 (a). SEM (b), TEM (c) and AFM (d and e) images of PEI functionalized WS2 and (B) fracture toughness of the PEI–WS2/epoxy composites (a and b).8 Reprinted with permission from ref. 8 (Copyright © 2017, American Chemical Society).

Fig. 8