在可充电的空气电池中用于双功能氧气电催化物的共价有机框架的近期进展
Greesh Kumar1, Manisha Das2, Ramendra Sundar Dey1
1Institute of Nano Science and Technology (INST), Sector-81, Mohali-140306, Punjab, India. rsdey@inst.ac.in.
Chemical communications (Cambridge, England)
|December 5, 2025
概括
工程共价有机框架 (COF) 是重要的双功能电催化剂,通过改善反应动力学和电荷转移来提高可充电空气电池 (ZAB) 的性能.
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:
- 空气电池 (ZAB) 提供高能量密度,但受到缓慢的氧反应动力学限制.
- 双功能电催化剂对于高效的ZAB运行至关重要,可催化氧降解 (ORR) 和进化 (OER) 反应.
- 由于可调节的导电性和可访问的活性站点,共价有机框架 (COF) 显示出前景.
研究的目的:
- 审查ZAB用于COF的双功能电催化剂设计的最新进展.
- 探索提高COF材料中的催化活性,电荷传输和大规模扩散的策略.
- 总结这些催化剂对ZAB性能的影响,并确定未来的研究方向.
主要方法:
- 基于COF的ZAB的双功能电催化剂的综合文献综述.
- 设计策略的分析,包括异质原子兴奋剂,金属协调和电子结构调制.
- 讨论来自DFT计算和in situ/operando光谱学的机械见解.
主要成果:
- 具有量身定制电子结构的工程COF显著改善ORR/OER动力学和电荷转移.
- 诸如兴奋剂和毛孔工程等策略可以增强催化活性和稳定性.
- 基于COF的催化剂明显提高了ZAB的功率密度,容量,效率和循环稳定性.
结论:
- 基于COF的双功能电催化剂的合理设计是释放可充电ZAB的潜力的关键.
- 克服可扩展合成和接口工程方面的挑战对于实际应用至关重要.
- 整合机器学习和高级表征可以加速下一代ZAB催化剂的开发.
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