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10.3390/ma16062290
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Article

Structural, Optical, Magnetic and Electrochemical Properties of CeXO2 (X: Fe, and Mn) Nanoparticles

by
Shalendra Kumar
1,2,*,
Faheem Ahmed
1,
Nagih M. Shaalan
1,3,
Nishat Arshi
4,
Saurabh Dalela
5 and
Keun H. Chae
6
1
Department of Physics, College of Science, King Faisal University, P.O. Box 400, Hofuf 31982, Al-Ahsa, Saudi Arabia
2
Department of Physics, University of Petroleum & Energy Studies, Dehradun 248007, India
3
Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
4
Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, P.O. Box 400, Hofuf 31982, Al-Ahsa, Saudi Arabia
5
Department of Pure & Applied Physics, University of Kota, Kota 324005, India
6
Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
*
Author to whom correspondence should be addressed.
Materials 2023, 16(6), 2290; https://doi.org/10.3390/ma16062290
Submission received: 7 February 2023 / Revised: 6 March 2023 / Accepted: 8 March 2023 / Published: 13 March 2023
(This article belongs to the Special Issue Recent Advancements and Challenges in Growth and Characterizations of Ceramics Nanostructures)
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Abstract

CeXO2 (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 CeO2 nanoparticles with FCC fluorite structure was confirmed by the Rietveld refinement, indicating the successful incorporation of Fe and Mn in the CeO2 matrix with the reduced dimensions and band gap values. The Raman analysis supported the lowest band gap of Fe-doped CeO2 on account of oxygen non-stoichiometry. The samples exhibited weak room temperature ferromagnetism, which was found to be enhanced in the Fe doped CeO2. The NEXAFS analysis supported the results by revealing the oxidation state of Fe to be Fe2+/Fe3+ in Fe-doped CeO2 nanoparticles. Further, the room temperature electrochemical performance of CeXO2 (X: Fe, Mn) nanoparticles was measured with a scan rate of 10 mV s−1 using 1 M KCL electrolyte, which showed that the Ce0.95Fe0.05O2 electrode revealed excellent performance with a specific capacitance of 945 Fּ·g−1 for the application in energy storage devices.
Keywords: CeO2; XRD; UV-vis spectroscopy; ferromagnetism; NEXAFS; supercapacitors CeO2; XRD; UV-vis spectroscopy; ferromagnetism; NEXAFS; supercapacitors

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MDPI and ACS Style

Kumar, S.; Ahmed, F.; Shaalan, N.M.; Arshi, N.; Dalela, S.; Chae, K.H. Structural, Optical, Magnetic and Electrochemical Properties of CeXO2 (X: Fe, and Mn) Nanoparticles. Materials 2023, 16, 2290. https://doi.org/10.3390/ma16062290

AMA Style

Kumar S, Ahmed F, Shaalan NM, Arshi N, Dalela S, Chae KH. Structural, Optical, Magnetic and Electrochemical Properties of CeXO2 (X: Fe, and Mn) Nanoparticles. Materials. 2023; 16(6):2290. https://doi.org/10.3390/ma16062290

Chicago/Turabian Style

Kumar, Shalendra, Faheem Ahmed, Nagih M. Shaalan, Nishat Arshi, Saurabh Dalela, and Keun H. Chae. 2023. "Structural, Optical, Magnetic and Electrochemical Properties of CeXO2 (X: Fe, and Mn) Nanoparticles" Materials 16, no. 6: 2290. https://doi.org/10.3390/ma16062290

APA Style

Kumar, S., Ahmed, F., Shaalan, N. M., Arshi, N., Dalela, S., & Chae, K. H. (2023). Structural, Optical, Magnetic and Electrochemical Properties of CeXO2 (X: Fe, and Mn) Nanoparticles. Materials, 16(6), 2290. https://doi.org/10.3390/ma16062290

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