BackgroundThis study focuses on the synthesis of magnesium‐doped dysprosium chromite via a sol‐gel method. The investigation aims to understand the morphological and structural properties of the synthesized nanochromates. Key techniques employed include x‐ray diffraction (XRD), scanning electron microscopy (SEM), and Raman spectroscopy.AimsThe primary aim is to analyze the structural characteristics of MgxDy1−xCr2O4 nanoparticles with varying Mg doping concentrations (ranging from 0.2 to 0.8). Special attention is given to the crystallinity of the synthesized materials, with the goal of assessing the reliability and reproducibility of the sol‐gel synthesis method.MethodsXRD analysis is employed to identify major diffraction peaks associated with the chromate nanoparticles, providing insights into their crystallinity. SEM imaging allows for the examination of the morphological features of the synthesized materials. Additionally, Raman spectroscopy aids in further understanding the structural properties of the nanochromates.ResultsThe XRD analysis reveals average crystallite sizes for MgxDy1−xCr2O4 nanoparticles at different Mg doping concentrations. Notably, an improvement in crystalline quality is observed with an increase in Mg doping from 0.2 to 0.8, indicating a high level of control achieved in the synthesis process. Cyclic Voltammetry (CV) experiments conducted using a 1M KOH electrolyte and varying scan rates (3 mV/s to 50 mV/s) demonstrate enhanced electrochemical performance of the synthesized nanoparticles.ConclusionThe study concludes that the sol‐gel synthesis method effectively produces MgxDy1−xCr2O4 nanoparticles with controlled morphological and structural properties. The observed improvement in crystalline quality with increasing Mg doping concentration suggests potential applications in fields such as photo‐catalysis, where enhanced crystallinity correlates with improved photo‐catalytic potential for visible light absorption.

中文翻译：

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镁掺杂镝亚铬酸盐的结构修饰、光学特性和电化学分析的综合检查

背景本研究重点是通过溶胶凝胶法合成镁掺杂的镝亚铬酸盐。该研究旨在了解合成的纳米铬酸盐的形态和结构特性。采用的关键技术包括 X 射线衍射 (XRD)、扫描电子显微镜 (SEM) 和拉曼光谱。目的主要目的是分析 Mg 的结构特征X镝1−X铬2氧4具有不同镁掺杂浓度（范围从 0.2 到 0.8）的纳米颗粒。特别关注合成材料的结晶度，目的是评估溶胶-凝胶合成方法的可靠性和重现性。方法采用 XRD 分析来识别与铬酸盐纳米粒子相关的主要衍射峰，从而深入了解其结晶度。 SEM 成像可以检查合成材料的形态特征。此外，拉曼光谱有助于进一步了解纳米铬酸盐的结构特性。结果 XRD 分析揭示了 Mg 的平均晶粒尺寸X镝1−X铬2氧4不同Mg掺杂浓度的纳米粒子。值得注意的是，随着 Mg 掺杂量从 0.2 增加到 0.8，观察到晶体质量的改善，表明在合成过程中实现了高水平的控制。使用 1M KOH 电解质和不同扫描速率（3 mV/s 至 50 mV/s）进行的循环伏安（CV）实验证明了合成纳米颗粒的电化学性能增强。结论该研究得出的结论是，溶胶-凝胶合成方法可以有效地产生 MgX镝1−X铬2氧4具有受控形态和结构特性的纳米颗粒。随着镁掺杂浓度的增加，观察到的晶体质量得到改善，这表明其在光催化等领域的潜在应用，其中结晶度的增强与可见光吸收的光催化潜力的提高相关。