在rGO/BaCoO3电极材料中调节扩散系数,离子导电率和转移数,用于优化超级电容器储能器材
Mohsin Shahzad1, Farooq Ahmad1,2, M Ibraheem1
1Centre of Excellence in Solid State Physics, University of the Punjab Lahore 54590 Pakistan satiq.cssp@pu.edu.pk.
RSC advances
|February 26, 2025
概括
BaCoO3/rGO复合材料显示出作为超级电容电极的前景. 该BCO-III复合物实现了高特异性容量,能量密度和功率密度,在5k循环后具有出色的稳定性和库伦比效率.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- ABO3型矿材料为电极应用提供了出色的循环稳定性和电容.
- 合成了BaCoO3/rGO复合材料,以探索它们在超级电容器 (SC) 设备中的潜力.
研究的目的:
- 为超级电容电极应用合成和表征BaCoO3/rGO复合材料.
- 为了评估这些复合材料的电化学性能和稳定性.
主要方法:
- 具有不同rGO含量的BaCoO3/rGO复合材料的溶热合成.
- 用X射线衍射 (XRD) 和场辐射扫描电子显微镜 (FESEM) 进行结构和形态分析.
- 电化学表征包括循环电压测量和静电电荷放电 (GCD) 在2M KOH.
主要成果:
- XRD证实了六角形相结构;FESEM显示了所需的多孔性和形态.
- 电化学测试揭示了从EDLC过渡到混合电容器行为.
- 该BCO-III复合材料的特定容量为90.15 C g-1,能量密度为21.28 W h kg-1,功率密度为531.25 W kg-1.
- 在5千个GCD循环后,BCO-III表现出90%的容量保留和94%的库伦比效率.
结论:
- BaCoO3/rGO复合材料是超级电容器的有效电极材料.
- 由于其高性能和稳定性,BCO-III复合材料显示出显著的潜力.
- 该材料的性能突出显示其适用于先进的储能应用.
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