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

Published online by Cambridge University Press:  17 February 2020

Henok Gebretinsae ,
Giday Welegergs ,
N. Matinise ,
M. Maaza  and
Z. Y. Nuru
Henok Gebretinsae
Affiliation:
Adigrat University, Department of Physics, P.O.Box 50, Adigrat, Ethiopia UNESCO - UNISA, Africa chair in nanoscience and Nanotechnology, College of Graduate Studies, Muckleneuk ridge, POBox 392, Pretoria-South Africa Nanosciences African Network, Materials Research Department, iThemba LABS
Giday Welegergs
Affiliation:
UNESCO - UNISA, Africa chair in nanoscience and Nanotechnology, College of Graduate Studies, Muckleneuk ridge, POBox 392, Pretoria-South Africa Nanosciences African Network, Materials Research Department, iThemba LABS Debre Berhan University, Department of Chemistry, P.O.Box 544, Ethiopia P.O.Box 722, National Research Foundation, South Africa
N. Matinise
Affiliation:
UNESCO - UNISA, Africa chair in nanoscience and Nanotechnology, College of Graduate Studies, Muckleneuk ridge, POBox 392, Pretoria-South Africa Nanosciences African Network, Materials Research Department, iThemba LABS
M. Maaza
Affiliation:
UNESCO - UNISA, Africa chair in nanoscience and Nanotechnology, College of Graduate Studies, Muckleneuk ridge, POBox 392, Pretoria-South Africa Nanosciences African Network, Materials Research Department, iThemba LABS
Z. Y. Nuru*
Affiliation:
Adigrat University, Department of Physics, P.O.Box 50, Adigrat, Ethiopia UNESCO - UNISA, Africa chair in nanoscience and Nanotechnology, College of Graduate Studies, Muckleneuk ridge, POBox 392, Pretoria-South Africa Nanosciences African Network, Materials Research Department, iThemba LABS
*
*Corresponding author: Z.Y. Nuru Email: [email protected]
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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.

Keywords

electrochemical synthesisscanning electron microscopy (SEM)x-ray diffraction (XRD)NiO
Type
Articles
Information
MRS Advances , Volume 5 , Issue 21-22: African Materials Research Society 2019 , 2020 , pp. 1095 - 1102
Copyright
Copyright © Materials Research Society 2020

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