Fig. 3: Microstructure and morphology of NiSb intermetallic catalyst.

a XRD patterns of the synthesized Ni and NiSb catalysts. Typical HRTEM images and corresponding FFT patterns of b Ni and c NiSb catalysts. HAADF-STEM images of d Ni and e NiSb catalysts as well as the corresponding EDS line-scanning profiles. HAADF-STEM EDS mapping analyses of f Ni and g NiSb catalysts.