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Enhancement in capacitive performance of Co3O4 with MnTiO3 via composite (MnTiO3/Co3O4) strategy developed by ultrasonication route
Journal of Alloys and Compounds ( IF 6.2 ) Pub Date : 2024-05-07 , DOI: 10.1016/j.jallcom.2024.174760
Muhammad Ashan , B.M. Alotaibi , Albandari.W. Alrowaily , Haifa A. Alyousef , Nuha Al-Harbi , A. Dahshan , Khursheed Ahmad , A.M.A. Henaish

The specific surface area, conductivity and cyclic stability of nanomaterials significantly impact a pseudocapacitor electrode's performance. The CoO is economically viable and widely available but has limited surface area and conductivity. However, MnTiO has a greater surface area and exhibits superior ion conductivity, resulting in better specific capacitance (C). Herein, a novel MnTiO/CoO nanocomposite is manufactured to enhance the properties of CoO using an ultrasonication technique for application in supercapacitors. Several analytical methods were utilized to examine synthesized materials' textural, structural and morphological characteristics. The MnTiO/CoO nanocomposite demonstrated notable C of 1534.67 F/g, specific energy (S, 64.05 Wh/kg) and specific power (S, 274.1 W/kg) at current density (C) of 1 A/g in 2.0 M KOH solution, according to electrochemical experiments. Additionally, after 5000th cycles, the nanocomposite exhibits excellent cyclic stability than pristine materials. This study not only showcases the significant capabilities of the commercially accessible MnTiO/CoO nanocomposite but also presents a novel approach for developing cost-effective, high-performing composite materials with multiple potential applications in the energy field.

中文翻译:


通过超声波途径开发的复合材料(MnTiO3/Co3O4)策略增强 Co3O4 与 MnTiO3 的电容性能



纳米材料的比表面积、电导率和循环稳定性显着影响赝电容器电极的性能。 CoO 经济可行且广泛使用,但表面积和电导率有限。然而,MnTiO 具有更大的表面积并表现出优异的离子电导率,从而产生更好的比电容 (C)。在此,利用超声波技术制造了一种新型 MnTiO/CoO 纳米复合材料,以增强 CoO 的性能,用于超级电容器。采用多种分析方法来检查合成材料的质地、结构和形态特征。 MnTiO/CoO 纳米复合材料在 2.0M KOH 中、电流密度 (C) 为 1A/g 时表现出显着的 C 为 1534.67F/g、比能量 (S, 64.05Wh/kg) 和比功率 (S, 274.1W/kg)溶液,根据电化学实验。此外,经过 5000 次循环后,纳米复合材料表现出比原始材料优异的循环稳定性。这项研究不仅展示了商用 MnTiO/CoO 纳米复合材料的显着性能,而且还提出了一种开发具有成本效益、高性能的复合材料的新方法,该材料在能源领域具有多种潜在应用。
更新日期:2024-05-07
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