Electrochemical study of Nickel Oxide (NiO) nanoparticles from cactus plant extract

Abstract

P-type NiO powders with an average crystallite size of 16 nm as shown by x-ray diffraction analysis were produced via biosynthesis using cactus plant extract. SEM showed that the NiO powders consisted of particles with sizes in the 20-35 nm range. A cyclic voltammetric study of the NiO nanopowders showed a quasi-reversible redox processes with the NiO powder showing potential for pseudo capacitance. Through these findings the use of natural Cactus extracts is hereby shown to be a cost-effective and environmentally friendly alternative for preparing Nickel oxide nanosized powders that can be of use in a variety of energy storage applications.

Synthesis and study of enhanced electrochemical properties of NiO nanoparticles deposited on TiO2 nanotubes

“…The anodic and cathodic currents are observed to be proportional to the square root of scan rates as displayed in Figure 9, showing that electrode reaction is indeed diffusion-controlled because the noticed redox peaks involve OH À diffusion from the supporting electrolyte to the electrode surface (during the reduction step) or from the electrode surface of the electrolyte (during the oxidation step). [67] These discoveries are steady with the past reports on NiO nanoparticles and a thin layer of Ni(OH) 2 . [68,69] Figure 8 shows the effect of the scan rate in the 2-M KOH process for NiO NPs/TiO 2 NTs-N 2 catalyst in 2.0-M KOH.…”

Unlocking the Potential of Bismuth‐Based Materials in Supercapacitor Technology: A Comprehensive Review

“…The area of multiferroics has gained significant attention in recent years because of its notable magnetoelectric phenomena [153–155] . These phenomena have garnered attention due to their potential for various innovative applications, including spintronics, novel data storage devices, multi‐state memory systems and energy storage devices [156–158] …”

Green Nanotechnology: Recent Research on Bioresource-Based Nanoparticle Synthesis and Applications

“…Cactus plant extract was used for the synthesis of NiO NPs. e synthesized NPs exhibited capabilities to be used for pseudo-capacitance [127]. Allium cepa bulb extract was also used to produce nickel oxide nanoparticles with greater dielectric constants [128].…”