Hi Shadrach, in addition to previous answer,.... XRD standard of NiO phases will be found in PCPDFWIN Program or you can enter the some universities having access-program for identifying XRD, and FTIR for NiO: I think you can search from yahoo or google internet, for example, http://dx.doi.org/10.1155/2009/795928 ;www.sciencedirect.com/science/article/pii/S136980011300156X etc.