Fig. 2From: The Enhanced Catalytic Activities of Asymmetric Au-Ni Nanoparticle Decorated Halloysite-Based Nanocomposite for the Degradation of Organic DyesTEM images of Au-Ni (a), Au (b), pure HNTs (c), HNTs@Fe3O4 (d), HNTs@Fe3O4@Au (e), HNTs@Fe3O4@Au-Ni (f), and the EDX spectrum of pure HNTs (g), HNTs@Fe3O4@Au (h) and HNTs@Fe3O4@Au-Ni (i); inset pictures of a and e are the HRTEM images of the Au-Ni and Au NPsBack to article page