Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) Nanoparticles
CeXO<sub>2</sub> (X: Fe, Mn) nanoparticles, synthesized using the coprecipitation route, were investigated for their structural, morphological, magnetic, and electrochemical properties using X-ray diffraction (XRD), field emission transmission electron microscopy (FE-TEM), dc magnetizati...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/16/6/2290 |
| _version_ | 1797610471271956480 |
|---|---|
| author | Shalendra Kumar Faheem Ahmed Nagih M. Shaalan Nishat Arshi Saurabh Dalela Keun H. Chae |
| author_facet | Shalendra Kumar Faheem Ahmed Nagih M. Shaalan Nishat Arshi Saurabh Dalela Keun H. Chae |
| author_sort | Shalendra Kumar |
| collection | DOAJ |
| description | CeXO<sub>2</sub> (X: Fe, Mn) nanoparticles, synthesized using the coprecipitation route, were investigated for their structural, morphological, magnetic, and electrochemical properties using X-ray diffraction (XRD), field emission transmission electron microscopy (FE-TEM), dc magnetization, and cyclic voltammetry methods. The single-phase formation of CeO<sub>2</sub> nanoparticles with FCC fluorite structure was confirmed by the Rietveld refinement, indicating the successful incorporation of Fe and Mn in the CeO<sub>2</sub> matrix with the reduced dimensions and band gap values. The Raman analysis supported the lowest band gap of Fe-doped CeO<sub>2</sub> on account of oxygen non-stoichiometry. The samples exhibited weak room temperature ferromagnetism, which was found to be enhanced in the Fe doped CeO<sub>2</sub>. The NEXAFS analysis supported the results by revealing the oxidation state of Fe to be Fe<sup>2+</sup>/Fe<sup>3+</sup> in Fe-doped CeO<sub>2</sub> nanoparticles. Further, the room temperature electrochemical performance of CeXO<sub>2</sub> (X: Fe, Mn) nanoparticles was measured with a scan rate of 10 mV s<sup>−1</sup> using 1 M KCL electrolyte, which showed that the Ce<sub>0.95</sub>Fe<sub>0.05</sub>O<sub>2</sub> electrode revealed excellent performance with a specific capacitance of 945 Fּ·g<sup>−1</sup> for the application in energy storage devices. |
| first_indexed | 2024-03-11T06:15:42Z |
| format | Article |
| id | doaj.art-d8994ab6e5e7472dad572eb15ebf2f07 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T06:15:42Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-d8994ab6e5e7472dad572eb15ebf2f072023-11-17T12:20:11ZengMDPI AGMaterials1996-19442023-03-01166229010.3390/ma16062290Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) NanoparticlesShalendra Kumar0Faheem Ahmed1Nagih M. Shaalan2Nishat Arshi3Saurabh Dalela4Keun H. Chae5Department of Physics, College of Science, King Faisal University, P.O. Box 400, Hofuf 31982, Al-Ahsa, Saudi ArabiaDepartment of Physics, College of Science, King Faisal University, P.O. Box 400, Hofuf 31982, Al-Ahsa, Saudi ArabiaDepartment of Physics, College of Science, King Faisal University, P.O. Box 400, Hofuf 31982, Al-Ahsa, Saudi ArabiaDepartment of Basic Sciences, Preparatory Year Deanship, King Faisal University, P.O. Box 400, Hofuf 31982, Al-Ahsa, Saudi ArabiaDepartment of Pure & Applied Physics, University of Kota, Kota 324005, IndiaAdvanced Analysis Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of KoreaCeXO<sub>2</sub> (X: Fe, Mn) nanoparticles, synthesized using the coprecipitation route, were investigated for their structural, morphological, magnetic, and electrochemical properties using X-ray diffraction (XRD), field emission transmission electron microscopy (FE-TEM), dc magnetization, and cyclic voltammetry methods. The single-phase formation of CeO<sub>2</sub> nanoparticles with FCC fluorite structure was confirmed by the Rietveld refinement, indicating the successful incorporation of Fe and Mn in the CeO<sub>2</sub> matrix with the reduced dimensions and band gap values. The Raman analysis supported the lowest band gap of Fe-doped CeO<sub>2</sub> on account of oxygen non-stoichiometry. The samples exhibited weak room temperature ferromagnetism, which was found to be enhanced in the Fe doped CeO<sub>2</sub>. The NEXAFS analysis supported the results by revealing the oxidation state of Fe to be Fe<sup>2+</sup>/Fe<sup>3+</sup> in Fe-doped CeO<sub>2</sub> nanoparticles. Further, the room temperature electrochemical performance of CeXO<sub>2</sub> (X: Fe, Mn) nanoparticles was measured with a scan rate of 10 mV s<sup>−1</sup> using 1 M KCL electrolyte, which showed that the Ce<sub>0.95</sub>Fe<sub>0.05</sub>O<sub>2</sub> electrode revealed excellent performance with a specific capacitance of 945 Fּ·g<sup>−1</sup> for the application in energy storage devices.https://www.mdpi.com/1996-1944/16/6/2290CeO<sub>2</sub>XRDUV-vis spectroscopyferromagnetismNEXAFSsupercapacitors |
| spellingShingle | Shalendra Kumar Faheem Ahmed Nagih M. Shaalan Nishat Arshi Saurabh Dalela Keun H. Chae Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) Nanoparticles Materials CeO<sub>2</sub> XRD UV-vis spectroscopy ferromagnetism NEXAFS supercapacitors |
| title | Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) Nanoparticles |
| title_full | Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) Nanoparticles |
| title_fullStr | Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) Nanoparticles |
| title_full_unstemmed | Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) Nanoparticles |
| title_short | Structural, Optical, Magnetic and Electrochemical Properties of CeXO<sub>2</sub> (X: Fe, and Mn) Nanoparticles |
| title_sort | structural optical magnetic and electrochemical properties of cexo sub 2 sub x fe and mn nanoparticles |
| topic | CeO<sub>2</sub> XRD UV-vis spectroscopy ferromagnetism NEXAFS supercapacitors |
| url | https://www.mdpi.com/1996-1944/16/6/2290 |
| work_keys_str_mv | AT shalendrakumar structuralopticalmagneticandelectrochemicalpropertiesofcexosub2subxfeandmnnanoparticles AT faheemahmed structuralopticalmagneticandelectrochemicalpropertiesofcexosub2subxfeandmnnanoparticles AT nagihmshaalan structuralopticalmagneticandelectrochemicalpropertiesofcexosub2subxfeandmnnanoparticles AT nishatarshi structuralopticalmagneticandelectrochemicalpropertiesofcexosub2subxfeandmnnanoparticles AT saurabhdalela structuralopticalmagneticandelectrochemicalpropertiesofcexosub2subxfeandmnnanoparticles AT keunhchae structuralopticalmagneticandelectrochemicalpropertiesofcexosub2subxfeandmnnanoparticles |