Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures
Апстракт
The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1-xAgxO (x=0.01–0.05) were successfully produced by using self-propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transi...tion at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology.
Извор:
6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade, 2022, 72-Издавач:
- University of Belgrade : Institute for Multidisciplinary Research
Напомена:
- VI Serbian Ceramic Society Conference : program and the book of abstracts; June 28-29, 2022; Belgrade
Колекције
Институција/група
VinčaTY - CONF AU - Čebela, Maria AU - Šenjug, Pavla AU - Barišić, Dario AU - Rosić, Milena AU - Lojpur, Vesna AU - Pajić, Damir PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/11504 AB - The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1-xAgxO (x=0.01–0.05) were successfully produced by using self-propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology. PB - University of Belgrade : Institute for Multidisciplinary Research C3 - 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade T1 - Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures SP - 72 UR - https://hdl.handle.net/21.15107/rcub_vinar_11504 ER -
@conference{ author = "Čebela, Maria and Šenjug, Pavla and Barišić, Dario and Rosić, Milena and Lojpur, Vesna and Pajić, Damir", year = "2022", abstract = "The influence of Ag doping on the crystal structure and magnetic properties of CuO nanopowders was investigated. Nanoparticles of copper–silver oxide solid solutions with composition Cu1-xAgxO (x=0.01–0.05) were successfully produced by using self-propagating room temperature synthesis using reaction between metal nitrates and sodium hydroxide. Prepared powders were calcinated at 700 °C for 2 h. The diffraction pattern was recorded at room temperature and atmospheric pressure without of any re-heating of the sample. A fitting refinement procedure using the Rietveld method was performed which showed the incorporation of Ag3+ ions in the CuO crystal lattice, where they substitute Cu2+ ions. Magnetic behaviour of synthesized materials was investigated by SQUID magnetometer in temperature interval 2–400 K. It is known that copper(II) oxide exhibits ferroelectricity driven by magnetic order at temperature as high as 230 K [1]. Multiferroic phase is present above the first order phase transition at TN1 = 213 K and exists up to the subsequent first order phase transition TN2 = 230 K [1,2]. It was shown that disorder in the form of impurities can stabilize the ferroelectric phase [2] this was our motivation to dope CuO with Ag in order to improve further its multiferroic properties. In Cu1-xAgxO small changes of magnetic properties were observed if compared to CuO. Transmission electron microscopy (TEM) and the scanning electron microscopy (SEM) were used to determine the particle size and morphology.", publisher = "University of Belgrade : Institute for Multidisciplinary Research", journal = "6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade", title = "Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures", pages = "72", url = "https://hdl.handle.net/21.15107/rcub_vinar_11504" }
Čebela, M., Šenjug, P., Barišić, D., Rosić, M., Lojpur, V.,& Pajić, D.. (2022). Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade University of Belgrade : Institute for Multidisciplinary Research., 72. https://hdl.handle.net/21.15107/rcub_vinar_11504
Čebela M, Šenjug P, Barišić D, Rosić M, Lojpur V, Pajić D. Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures. in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade. 2022;:72. https://hdl.handle.net/21.15107/rcub_vinar_11504 .
Čebela, Maria, Šenjug, Pavla, Barišić, Dario, Rosić, Milena, Lojpur, Vesna, Pajić, Damir, "Effect of Ag doping on the morphological and magnetic properties of CuO nanostructures" in 6CSCS : 6th Serbian Ceramic Society Conference : programme and the book of abstracts; June 28-29; Belgrade (2022):72, https://hdl.handle.net/21.15107/rcub_vinar_11504 .