在碳框架内由物种诱导的铁酸阳离子-介面,用于高效地储存超级电容器中的电荷
Jianjian Wang1, Xuedan Song1, Chang Yu1
1State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China.
层次性多孔的碳材料与兴奋剂创建一个阴离子-菲力接口,显著提高超级电容性能通过增强氧化还原电解质相互作用和电荷储存.
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
- 纳米技术 纳米技术
背景情况:
- 层次性的多孔碳材料对氧化还原电解质增强的超级电容器充满希望.
- 惰性碳表面限制了氧化还原电解质的定,阻碍了性能.
研究的目的:
- 开发一种改性碳材料,以提高氧化还原增强超级电容器的性能.
- 通过铁酸离子-基接口来研究增强电荷存储的机制.
主要方法:
- 在碳环中实地插入物种,以创建极地点.
- 密度函数理论计算以确定电静相互作用的活性位 (BC2O,BCO2).
- 设计的添加碳材料 (PC-3) 的电化学测试.
主要成果:
- 兴奋剂制造了一个离子-基接口,有效地固化离子.
- 在BC2O和BCO2单元中的原子充当活性位点,通过静电相互作用结合化.
- 该PC-3材料的电容达到1099Fg-1,与无碳相比增加了2倍以上.
结论:
- 兴奋剂是一种有效的策略,用于创建超级电容器的反应物种-爱用碳材料.
- 开发的材料通过抑制离子穿和扩散效应来证明增强的电荷存储.
- 这项工作为设计高性能储能材料提供了一种新的方法.
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