“…The diffraction peaks of the samples are indexed to NiFe LDH, agreeing well with the standard powder diffraction patterns (JCPDF no. 40-0215) [8]. Specifically, the characteristic peaks of the (003), ( 006), ( 012), ( 110) and (113) crystal planes of NiFe LDH are located at 11.6°, 23.45°, 34.4°, 59.9° and 61.3° respectively, and the peak shape is sharp, indicating that the crystallinity of the synthesized sample is high.…”