Details
Original language | English |
---|---|
Article number | 3426 |
Number of pages | 16 |
Journal | MATERIALS |
Volume | 16 |
Issue number | 9 |
Early online date | 27 Apr 2023 |
Publication status | Published - May 2023 |
Externally published | Yes |
Abstract
The present study aims at the integration of the “oxalic conversion” route into “green chemistry” for the synthesis of copper oxide nanoparticles (CuO-NPs) with controllable structural, morphological, and magnetic properties. Two oxalate-containing precursors (H 2C 2O 4.2H 2O and (NH 4) 2C 2O 4.H 2O) and different volume ratios of a mixed water/glycerol solvent were tested. First, the copper oxalates were synthesized and then subjected to thermal decomposition in air at 400 °C to produce the CuO powders. The purity of the samples was confirmed by X-ray powder diffraction (XRPD), and the crystallite sizes were calculated using the Scherrer method. The transmission electron microscopy (TEM) images revealed oval-shaped CuO-NPs, and the scanning electron microscopy (SEM) showed that morphological features of copper oxalate precursors and their corresponding oxides were affected by the glycerol (V/V) ratio as well as the type of C 2O 4 2− starting material. The magnetic properties of CuO-NPs were determined by measuring the temperature-dependent magnetization and the hysteresis curves at 5 and 300 K. The obtained results indicate the simultaneous coexistence of dominant antiferromagnetic and weak ferromagnetic behavior.
Keywords
- CuO nanoparticles, magnetic properties, oxalate precursor route, TEM and SEM observations, X-ray powder diffraction
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Materials Science(all)
- General Materials Science
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In: MATERIALS, Vol. 16, No. 9, 3426, 05.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Insights into the Synthesis Parameters Effects on the Structural, Morphological, and Magnetic Properties of Copper Oxide Nanoparticles
AU - Mbarek, Fatma
AU - Chérif, Ichraf
AU - Chérif, Amira
AU - Alonso, José María
AU - Morales, Irene
AU - Presa, Patricia de la
AU - Ammar, Salah
N1 - Publisher Copyright: © 2023 by the authors.
PY - 2023/5
Y1 - 2023/5
N2 - The present study aims at the integration of the “oxalic conversion” route into “green chemistry” for the synthesis of copper oxide nanoparticles (CuO-NPs) with controllable structural, morphological, and magnetic properties. Two oxalate-containing precursors (H 2C 2O 4.2H 2O and (NH 4) 2C 2O 4.H 2O) and different volume ratios of a mixed water/glycerol solvent were tested. First, the copper oxalates were synthesized and then subjected to thermal decomposition in air at 400 °C to produce the CuO powders. The purity of the samples was confirmed by X-ray powder diffraction (XRPD), and the crystallite sizes were calculated using the Scherrer method. The transmission electron microscopy (TEM) images revealed oval-shaped CuO-NPs, and the scanning electron microscopy (SEM) showed that morphological features of copper oxalate precursors and their corresponding oxides were affected by the glycerol (V/V) ratio as well as the type of C 2O 4 2− starting material. The magnetic properties of CuO-NPs were determined by measuring the temperature-dependent magnetization and the hysteresis curves at 5 and 300 K. The obtained results indicate the simultaneous coexistence of dominant antiferromagnetic and weak ferromagnetic behavior.
AB - The present study aims at the integration of the “oxalic conversion” route into “green chemistry” for the synthesis of copper oxide nanoparticles (CuO-NPs) with controllable structural, morphological, and magnetic properties. Two oxalate-containing precursors (H 2C 2O 4.2H 2O and (NH 4) 2C 2O 4.H 2O) and different volume ratios of a mixed water/glycerol solvent were tested. First, the copper oxalates were synthesized and then subjected to thermal decomposition in air at 400 °C to produce the CuO powders. The purity of the samples was confirmed by X-ray powder diffraction (XRPD), and the crystallite sizes were calculated using the Scherrer method. The transmission electron microscopy (TEM) images revealed oval-shaped CuO-NPs, and the scanning electron microscopy (SEM) showed that morphological features of copper oxalate precursors and their corresponding oxides were affected by the glycerol (V/V) ratio as well as the type of C 2O 4 2− starting material. The magnetic properties of CuO-NPs were determined by measuring the temperature-dependent magnetization and the hysteresis curves at 5 and 300 K. The obtained results indicate the simultaneous coexistence of dominant antiferromagnetic and weak ferromagnetic behavior.
KW - CuO nanoparticles
KW - magnetic properties
KW - oxalate precursor route
KW - TEM and SEM observations
KW - X-ray powder diffraction
UR - http://www.scopus.com/inward/record.url?scp=85159338923&partnerID=8YFLogxK
U2 - 10.3390/ma16093426
DO - 10.3390/ma16093426
M3 - Article
VL - 16
JO - MATERIALS
JF - MATERIALS
SN - 1996-1944
IS - 9
M1 - 3426
ER -