Usually, glassy carbon electrode (GC) is used as it is as a substrate for electrochemically deposited nickel or nickel oxide (NiO x ) nanoparticles. In the present study, GC carbon is anodically oxidized in different media prior to electrode position of NiO x and the impacts of this pretreatment on the structural and electrochemical characteristics of NiO x are studied. Upon anodic pretreatment of GC electrode in acid (0.1 M H 2 SO 4 , GC OX-AC ) and in alkali (0.1 M NaOH, GC OX-AL ), the structural and electrochemical characterizations of nickel oxide (NiO x ) nanoparticles are highly modified. Cyclic voltammetry (CV), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) are used for characterization of the electrodes. While NiOx nanoparticles deposited on GC OX-AC reveal a bird-like shape, it shows semi-spherical shape when it is deposited on either GC or GC OX-AL , with smaller size on the GC OX-AL . The reversibility of the Ni(OH) 2
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.