Development of solution combustion-synthesized RGO/ZnO:1Eu3+ nanocomposite for supercapacitor and fingerprint visualization applications

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS Diamond and Related Materials Pub Date : 2025-03-01 Epub Date: 2025-02-12 DOI:10.1016/j.diamond.2025.112103

P. Satish Kumar , Nandini Robin Nadar , S.C. Sharma , B.K. Das

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Abstract

High-performance energy storage devices depend significantly on the design and quality of electrode materials. This research reports the successful synthesis of RGO/ZnO:1Eu³⁺ (RZE) nanocomposites using a solution combustion method, showcasing their potential for supercapacitor applications. Cyclic voltammetry (CV) demonstrated a marked enhancement in specific capacitance (Csp), achieving an impressive 428.9 F g⁻¹ at a scan rate of 2 mV/s. Further, charge-discharge tests indicated a specific capacitance of 274.54 F g⁻¹, reinforcing the material's suitability for energy storage. The RZE electrodes exhibited notable energy density (54.38 Wh/kg) and power density (40,000 Wh/kg). Importantly, these nanocomposites retained 87.5 % of their capacity and showed a high coulombic efficiency of 92.7 % after 5000 charge-discharge cycles. These findings underscore the effectiveness of RZE electrode materials for supercapacitors. Additionally, RZE nanocomposites have demonstrated outstanding performance in enhancing fingerprint visualization, revealing detailed ridge patterns, minutiae, and pore structures, signifying their potential as a valuable tool in forensic science applications.

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溶液燃烧合成RGO/ZnO:1Eu3+纳米复合材料在超级电容器和指纹可视化中的应用

高性能储能装置在很大程度上取决于电极材料的设计和质量。本研究报道了采用溶液燃烧法成功合成RGO/ZnO:1Eu3+ (RZE)纳米复合材料，展示了其在超级电容器中的应用潜力。循环伏安法（CV）显示了比电容（Csp）的显著增强，在2 mV/s的扫描速率下达到了令人印象深刻的428.9 F g−1。此外，充放电测试表明，比电容为274.54 F g−1，增强了材料储能的适用性。RZE电极具有显著的能量密度（54.38 Wh/kg）和功率密度（40000 Wh/kg）。重要的是，这些纳米复合材料在5000次充放电循环后保持了87.5%的容量，并显示出92.7%的高库仑效率。这些发现强调了RZE电极材料用于超级电容器的有效性。此外，RZE纳米复合材料在增强指纹可视化，揭示详细的脊状图案，细节和孔隙结构方面表现出出色的性能，这表明它们有潜力成为法医科学应用的宝贵工具。

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.