用于可持续的高性能储能装置的氧化物装饰的富COP的质子合伪电容性行为
Nakul Desai1, Y N Sudhakar1, M Selvakumar1
1Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education Manipal-576104 India sudhakar.yn@manipal.edu.
RSC advances
|August 27, 2025
概括
一种新型混合材料将氧化纳米粒子与富含的共价有机聚合物 (COP) 结合起来,证明了双电荷存储. 这种Mn2O3@COP复合材料为先进的储能设备提供了高容量和出色的稳定性.
科学领域:
- 材料科学
- 电化学
- 纳米技术
背景情况:
- 开发高效储能的先进材料至关重要.
- 层次混合材料提供协同性能以提高性能.
- 协价有机聚合物 (COP) 和过渡金属氧化物对超级电容具有前景.
研究的目的:
- 合成和表征一种用于双电荷存储的等级混合材料 (Mn2O3@COP).
- 研究超级电容器中Mn2O3@COP复合物的电化学性能.
- 探索将过渡金属氧化物与导电有机网络用于储能的潜力.
主要方法:
- 一种富含的基于三的共价有机聚合物 (COP) 的合成.
- 将Mn2O3纳米粒子集成到COP矩阵中以形成Mn2O3@COP.
- 使用FTIR,XRD,SEM,EDS,BET和XPS进行表征.
- 在1M H2SO4电解质中使用三电极和对称超级电容器配置进行电化学评估.
主要成果:
- 证实了Mn2O3纳米颗粒在多孔COP矩阵中的均嵌入.
- Mn2O3@COP复合材料表现出电双层电容 (EDLC) 和伪电容性行为的组合.
- 实现了高特异电容 (113 F g-1 在5 mV s-1),能量密度 (9.6 Wh kg-1),功率密度 (500 W kg-1).
- 对称超级电容器表现出极好的循环稳定性,在10,000个循环后保持95%的电容.
结论:
- Mn2O3@COP混合材料有效地将Mn2O3的能量密度与COP的快速动力学相结合.
- 这种层次结构促进了有效的离子扩散和电荷转移,从而提高了电化学性能.
- 开发的材料为制造持久且高效的储能装置提供了可行的策略.
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