A comprehensive examination of structural modifications, optical characteristics, and electrochemical analysis of magnesium-doped dysprosium chromite

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-23 DOI:10.1002/jccs.202400005

Awais Siddique Saleemi, Munirah D. Albaqami, Saikh Mohammad, Ali Abdullah, Muhammad Saeed

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Abstract

Background

This 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.

Aims

The primary aim is to analyze the structural characteristics of Mg_xDy_1−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.

Methods

XRD 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.

Results

The XRD analysis reveals average crystallite sizes for Mg_xDy_1−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.

Conclusion

The study concludes that the sol-gel synthesis method effectively produces Mg_xDy_1−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.

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对掺镁镝铬铁矿的结构改性、光学特性和电化学分析的全面研究

本研究的重点是通过溶胶-凝胶法合成掺镁镝铬铁矿。研究旨在了解合成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。主要目的是分析不同掺镁浓度（从 0.2 到 0.8）的 MgxDy1-xCr2O4 纳米粒子的结构特征。XRD 分析用于确定与铬酸盐纳米颗粒相关的主要衍射峰，从而深入了解其结晶度。通过扫描电子显微镜成像可以检查合成材料的形态特征。XRD 分析显示了不同镁掺杂浓度下 MgxDy1-xCr2O4 纳米粒子的平均结晶尺寸。值得注意的是，随着镁掺杂浓度从 0.2 增加到 0.8，晶体质量有所改善，这表明合成过程实现了高度控制。使用 1M KOH 电解质和不同的扫描速率（3 mV/s 至 50 mV/s）进行的循环伏安法（CV）实验表明，合成的纳米粒子具有更高的电化学性能。研究得出的结论是，溶胶-凝胶合成法能有效生产出具有可控形态和结构特性的 MgxDy1-xCr2O4 纳米粒子。随着镁掺杂浓度的增加，观察到的结晶质量的改善表明，它在光催化等领域具有潜在的应用前景，因为结晶度的提高与可见光吸收的光催化潜力的改善相关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.