Synthesis and characterization of CuO-NiO-ZnO mixed metal oxide nanocomposite

Albert O. Juma, Elhadi A.A. Arbab, Cosmas M. Muiva, Lucia M. Lepodise, Genene Tessema Mola

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The synthesis, characterization and application of mixed oxides has received increasing interest because of the many opportunities in tuning their properties for better functional performance compared to the basic metal oxides. CuO-NiO-ZnO mixed oxide nanocomposite was prepared by a simple co-precipitation method and its physical properties investigated. XRD studies showed distinct monoclinic CuO, cubic NiO and hexagonal wurzite ZnO phases with NiO oxide having the highest volume fraction. The particle sizes as determined by TEM varied between 15 and 40 nm while electron diffraction showed that the nanocomposite was polycrystalline. An EDX map of a selected area revealed that the elemental composition of the constituent oxides varied across the studied area. The existence of three phases indicates the presence of CuO/NiO/ZnO double heterojunctions, which impacts strongly on the overall properties of the nanocomposite.
Original languageEnglish
Pages (from-to)866-872
Number of pages7
JournalJournal of Alloys and Compounds
Volume723
DOIs
Publication statusPublished - 2017

Fingerprint

Oxides
Nanocomposites
Metals
Coprecipitation
Electron diffraction
Heterojunctions
Energy dispersive spectroscopy
Volume fraction
Tuning
Physical properties
Particle size
Transmission electron microscopy
Chemical analysis

Cite this

@article{3027ecc537e34d9f8e56278ace81228b,
title = "Synthesis and characterization of CuO-NiO-ZnO mixed metal oxide nanocomposite",
abstract = "The synthesis, characterization and application of mixed oxides has received increasing interest because of the many opportunities in tuning their properties for better functional performance compared to the basic metal oxides. CuO-NiO-ZnO mixed oxide nanocomposite was prepared by a simple co-precipitation method and its physical properties investigated. XRD studies showed distinct monoclinic CuO, cubic NiO and hexagonal wurzite ZnO phases with NiO oxide having the highest volume fraction. The particle sizes as determined by TEM varied between 15 and 40 nm while electron diffraction showed that the nanocomposite was polycrystalline. An EDX map of a selected area revealed that the elemental composition of the constituent oxides varied across the studied area. The existence of three phases indicates the presence of CuO/NiO/ZnO double heterojunctions, which impacts strongly on the overall properties of the nanocomposite.",
author = "Juma, {Albert O.} and Arbab, {Elhadi A.A.} and Muiva, {Cosmas M.} and Lepodise, {Lucia M.} and Mola, {Genene Tessema}",
year = "2017",
doi = "10.1016/j.jallcom.2017.06.288",
language = "English",
volume = "723",
pages = "866--872",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier Ltd",

}

Synthesis and characterization of CuO-NiO-ZnO mixed metal oxide nanocomposite. / Juma, Albert O.; Arbab, Elhadi A.A.; Muiva, Cosmas M.; Lepodise, Lucia M.; Mola, Genene Tessema.

In: Journal of Alloys and Compounds, Vol. 723, 2017, p. 866-872.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Synthesis and characterization of CuO-NiO-ZnO mixed metal oxide nanocomposite

AU - Juma, Albert O.

AU - Arbab, Elhadi A.A.

AU - Muiva, Cosmas M.

AU - Lepodise, Lucia M.

AU - Mola, Genene Tessema

PY - 2017

Y1 - 2017

N2 - The synthesis, characterization and application of mixed oxides has received increasing interest because of the many opportunities in tuning their properties for better functional performance compared to the basic metal oxides. CuO-NiO-ZnO mixed oxide nanocomposite was prepared by a simple co-precipitation method and its physical properties investigated. XRD studies showed distinct monoclinic CuO, cubic NiO and hexagonal wurzite ZnO phases with NiO oxide having the highest volume fraction. The particle sizes as determined by TEM varied between 15 and 40 nm while electron diffraction showed that the nanocomposite was polycrystalline. An EDX map of a selected area revealed that the elemental composition of the constituent oxides varied across the studied area. The existence of three phases indicates the presence of CuO/NiO/ZnO double heterojunctions, which impacts strongly on the overall properties of the nanocomposite.

AB - The synthesis, characterization and application of mixed oxides has received increasing interest because of the many opportunities in tuning their properties for better functional performance compared to the basic metal oxides. CuO-NiO-ZnO mixed oxide nanocomposite was prepared by a simple co-precipitation method and its physical properties investigated. XRD studies showed distinct monoclinic CuO, cubic NiO and hexagonal wurzite ZnO phases with NiO oxide having the highest volume fraction. The particle sizes as determined by TEM varied between 15 and 40 nm while electron diffraction showed that the nanocomposite was polycrystalline. An EDX map of a selected area revealed that the elemental composition of the constituent oxides varied across the studied area. The existence of three phases indicates the presence of CuO/NiO/ZnO double heterojunctions, which impacts strongly on the overall properties of the nanocomposite.

U2 - 10.1016/j.jallcom.2017.06.288

DO - 10.1016/j.jallcom.2017.06.288

M3 - Article

VL - 723

SP - 866

EP - 872

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -