Figure 1. (A) XRD patterns of NiOx and 10% Bi2Te3@NiOx, (B) TEM image of NiOx, (C) HRTEM micrographs of NiOx, (D) TEM image of 10% Bi2Te3@NiOx, and (E) HRTEM micrographs of 10% Bi2Te3@NiOx. XRD: X-ray diffraction; TEM: transmission electron microscopy; HRTEM: high-resolution TEM.