Structure and physical properties of NiO/Co3O4 nanoparticles

Mahmoud Naseri, Arash Dehzangi, Halimah Mohamed Kamari, Alex See, Mina Abedi, Reza Salasi, Ahmad Nozad Goli-Kand, Pouya Dianat, Farhad Larki, Alam Abedini, Jumiah Hassan, Ahmad Kamalian Far, Burhanuddin Yeop Majlis

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/CO3O4) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction results showed that there was no crystallinity in the predecessor, and it still had the amorphous phase. The formations of the crystalline phases of the nickel-cobalt oxide nanoparticles started from 350–500 °C, and the final products had different crystallite sizes ranging from 11–35 nm. Furthermore, the variation of DC conductivity (σdc), impedance, tangent loss (tgδ) and dielectric constant (εʹ) of the calcined specimens with frequency in the range of 102–106 Hz was investigated. σdc showed a value of 1.9 × 10-6 S/m, 1.3 × 10-6 S/m and 1.6 × 10-6 S/m for the specimens calcined at 350, 400 and 450 °C, respectively. Additionally, a decrease in tgδ values with an increase in temperature was observed. Finally, the formed nanoparticles exhibited ferromagnetic behaviors, which were confirmed by using a vibrating sample magnetometer (VSM).

Original languageEnglish
Article number181
JournalMetals
Volume6
Issue number8
DOIs
Publication statusPublished - 1 Aug 2016

Fingerprint

Nickel
Cobalt
Physical properties
Nanoparticles
Oxides
X ray diffraction
Magnetometers
Crystallite size
Fourier transform infrared spectroscopy
Permittivity
Heat treatment
Crystalline materials
Transmission electron microscopy
cobalt oxide
Temperature

Keywords

  • Conductivity
  • Dielectric constant
  • Magnetic properties
  • Nickel-cobalt oxide nanoparticles

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Naseri, M., Dehzangi, A., Kamari, H. M., See, A., Abedi, M., Salasi, R., ... Yeop Majlis, B. (2016). Structure and physical properties of NiO/Co3O4 nanoparticles. Metals, 6(8), [181]. https://doi.org/10.3390/met6080181

Structure and physical properties of NiO/Co3O4 nanoparticles. / Naseri, Mahmoud; Dehzangi, Arash; Kamari, Halimah Mohamed; See, Alex; Abedi, Mina; Salasi, Reza; Goli-Kand, Ahmad Nozad; Dianat, Pouya; Larki, Farhad; Abedini, Alam; Hassan, Jumiah; Far, Ahmad Kamalian; Yeop Majlis, Burhanuddin.

In: Metals, Vol. 6, No. 8, 181, 01.08.2016.

Research output: Contribution to journalArticle

Naseri, M, Dehzangi, A, Kamari, HM, See, A, Abedi, M, Salasi, R, Goli-Kand, AN, Dianat, P, Larki, F, Abedini, A, Hassan, J, Far, AK & Yeop Majlis, B 2016, 'Structure and physical properties of NiO/Co3O4 nanoparticles', Metals, vol. 6, no. 8, 181. https://doi.org/10.3390/met6080181
Naseri M, Dehzangi A, Kamari HM, See A, Abedi M, Salasi R et al. Structure and physical properties of NiO/Co3O4 nanoparticles. Metals. 2016 Aug 1;6(8). 181. https://doi.org/10.3390/met6080181
Naseri, Mahmoud ; Dehzangi, Arash ; Kamari, Halimah Mohamed ; See, Alex ; Abedi, Mina ; Salasi, Reza ; Goli-Kand, Ahmad Nozad ; Dianat, Pouya ; Larki, Farhad ; Abedini, Alam ; Hassan, Jumiah ; Far, Ahmad Kamalian ; Yeop Majlis, Burhanuddin. / Structure and physical properties of NiO/Co3O4 nanoparticles. In: Metals. 2016 ; Vol. 6, No. 8.
@article{f51862dc90884ae3903c34eec009eb1a,
title = "Structure and physical properties of NiO/Co3O4 nanoparticles",
abstract = "The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/CO3O4) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction results showed that there was no crystallinity in the predecessor, and it still had the amorphous phase. The formations of the crystalline phases of the nickel-cobalt oxide nanoparticles started from 350–500 °C, and the final products had different crystallite sizes ranging from 11–35 nm. Furthermore, the variation of DC conductivity (σdc), impedance, tangent loss (tgδ) and dielectric constant (εʹ) of the calcined specimens with frequency in the range of 102–106 Hz was investigated. σdc showed a value of 1.9 × 10-6 S/m, 1.3 × 10-6 S/m and 1.6 × 10-6 S/m for the specimens calcined at 350, 400 and 450 °C, respectively. Additionally, a decrease in tgδ values with an increase in temperature was observed. Finally, the formed nanoparticles exhibited ferromagnetic behaviors, which were confirmed by using a vibrating sample magnetometer (VSM).",
keywords = "Conductivity, Dielectric constant, Magnetic properties, Nickel-cobalt oxide nanoparticles",
author = "Mahmoud Naseri and Arash Dehzangi and Kamari, {Halimah Mohamed} and Alex See and Mina Abedi and Reza Salasi and Goli-Kand, {Ahmad Nozad} and Pouya Dianat and Farhad Larki and Alam Abedini and Jumiah Hassan and Far, {Ahmad Kamalian} and {Yeop Majlis}, Burhanuddin",
year = "2016",
month = "8",
day = "1",
doi = "10.3390/met6080181",
language = "English",
volume = "6",
journal = "Metals",
issn = "2075-4701",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "8",

}

TY - JOUR

T1 - Structure and physical properties of NiO/Co3O4 nanoparticles

AU - Naseri, Mahmoud

AU - Dehzangi, Arash

AU - Kamari, Halimah Mohamed

AU - See, Alex

AU - Abedi, Mina

AU - Salasi, Reza

AU - Goli-Kand, Ahmad Nozad

AU - Dianat, Pouya

AU - Larki, Farhad

AU - Abedini, Alam

AU - Hassan, Jumiah

AU - Far, Ahmad Kamalian

AU - Yeop Majlis, Burhanuddin

PY - 2016/8/1

Y1 - 2016/8/1

N2 - The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/CO3O4) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction results showed that there was no crystallinity in the predecessor, and it still had the amorphous phase. The formations of the crystalline phases of the nickel-cobalt oxide nanoparticles started from 350–500 °C, and the final products had different crystallite sizes ranging from 11–35 nm. Furthermore, the variation of DC conductivity (σdc), impedance, tangent loss (tgδ) and dielectric constant (εʹ) of the calcined specimens with frequency in the range of 102–106 Hz was investigated. σdc showed a value of 1.9 × 10-6 S/m, 1.3 × 10-6 S/m and 1.6 × 10-6 S/m for the specimens calcined at 350, 400 and 450 °C, respectively. Additionally, a decrease in tgδ values with an increase in temperature was observed. Finally, the formed nanoparticles exhibited ferromagnetic behaviors, which were confirmed by using a vibrating sample magnetometer (VSM).

AB - The thermal treatment method was employed to prepare nickel-cobalt oxide (NiO/CO3O4) nanoparticles. This method was attempted to achieve the higher homogeneity of the final product. Specimens of nickel-cobalt oxide were characterized by various experimental techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction results showed that there was no crystallinity in the predecessor, and it still had the amorphous phase. The formations of the crystalline phases of the nickel-cobalt oxide nanoparticles started from 350–500 °C, and the final products had different crystallite sizes ranging from 11–35 nm. Furthermore, the variation of DC conductivity (σdc), impedance, tangent loss (tgδ) and dielectric constant (εʹ) of the calcined specimens with frequency in the range of 102–106 Hz was investigated. σdc showed a value of 1.9 × 10-6 S/m, 1.3 × 10-6 S/m and 1.6 × 10-6 S/m for the specimens calcined at 350, 400 and 450 °C, respectively. Additionally, a decrease in tgδ values with an increase in temperature was observed. Finally, the formed nanoparticles exhibited ferromagnetic behaviors, which were confirmed by using a vibrating sample magnetometer (VSM).

KW - Conductivity

KW - Dielectric constant

KW - Magnetic properties

KW - Nickel-cobalt oxide nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=84983364663&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983364663&partnerID=8YFLogxK

U2 - 10.3390/met6080181

DO - 10.3390/met6080181

M3 - Article

AN - SCOPUS:84983364663

VL - 6

JO - Metals

JF - Metals

SN - 2075-4701

IS - 8

M1 - 181

ER -