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X-Ray Photoelectron Spectroscopy Study of Host/Dopant Cation’s Valence State and Formation of F+-Centers in Pr-Doped CeO2 Nanomaterials
Nano ( IF 1.2 ) Pub Date : 2023-08-12 , DOI: 10.1142/s1793292023500662
H. R. Khakhal 1 , Sudhish Kumar 2 , S. N. Dolia 3 , V. S. Vats 4 , B. Dalela 5 , P. A. Alvi 6 , Shalendra Kumar 7, 8 , S. Dalela 1
Affiliation  

Ce1xPrxO2 (x=0, 0.02, 0.04, 0.06, and 0.08) nano-materials synthesized using co-precipitation method have been investigated mainly for electronic structure properties in this manuscript. Findings and supporting studies are presented to understand the role of valence states of host and dopant cations information of F+ centers through X-ray photoelectron spectroscopy (XPS). Sustained cubic fluorite system confirmed by X-ray diffraction (XRD) analysis and red-shifting of energy gap by UV–Vis spectroscopy in all the samples are our findings. Samples further implored by XPS indicate incidence of cerium and Pr cations in both the oxidation states of 4+ and 3+ , respectively. Finally, it has been observed that optical, electronic structure and magnetic properties of CeO2 nanomaterials can be modified by Pr-doping, promising better yield samples with good amount of ferromagnetism for potential uses in the technological applications like spintronics, optoelectronics, and photocatalytic.



中文翻译:

X 射线光电子能谱研究 Pr 掺杂 CeO2 纳米材料中主体/掺杂剂阳离子的价态和 F+ 中心的形成

1-X普罗X氧气2X=0、0.02、0.04、0.06 和 0.08) 使用共沉淀法合成的纳米材料主要研究了本手稿的电子结构特性。提出了研究结果和支持性研究,以了解 F 的主体和掺杂剂阳离子信息的价态的作用+通过 X 射线光电子能谱 (XPS) 分析中心。我们发现所有样品中均存在持续的立方萤石体系,并通过 X 射线衍射 (XRD) 分析和紫外-可见光谱的能隙红移得到证实。XPS 进一步分析的样品表明,在 4 的两种氧化态中存在铈和镨阳离子。+和 3+, 分别。最后,据观察,CeO 2纳米材料的光学、电子结构和磁性能可以通过 Pr 掺杂来改变,从而有望获得具有良好铁磁性的更高产率的样品,在自旋电子学、光电子学和光催化等技术应用中具有潜在用途。

更新日期:2023-08-15
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