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选和合效应共同构建 heteroatom 兴奋剂,以促进高效的双功能催化在空气电池
Pengfei Zhang1,2, Keliang Wang2, Feng Zhou3
1College of Smart Materials and Future Energy, Fudan University, Shanghai, China.
Small (Weinheim an der Bergstrasse, Germany)
|February 2, 2026
概括
研究人员开发了用于高效的空气电池的新型异原子合碳材料 (C&H). 这些非贵金属催化剂提供了卓越的性能和耐用性,克服了贵金属催化剂的局限性.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 空气电池提供高能量密度和安全性,但受到昂贵的催化剂和缓慢的氧气电催化剂的限制.
- 目前制备双功能催化剂的方法缺乏普遍性和可扩展性.
研究的目的:
- 开发一种简单,可扩展的战略,用于高效的,非贵金属双功能催化剂,用于空气电池.
- 研究碳基板,过渡金属和非金属在催化活性中的协同效应.
主要方法:
- 使用元素氧化还原倾向和合作结构合成异原子合碳材料 (C&H).
- 对氧减少反应 (ORR) 和氧演化反应 (OER) 的催化活动的评估.
- 组装的空气电池的性能测试,包括功率密度,特定容量,周期寿命和灵活性.
主要成果:
- C&H-300催化剂表现出优异的双功能ORR/OER活性,性能优于商业Pt/C-RuO2.
- 实现了更高的功率密度 (123 mW cm−2),特定容量 (745.5 mAh gZn−1),以及超长的周期寿命 (>1200 h).
- 在变形下,在灵活的空气电池中表现出稳定的性能.
结论:
- 碳,过渡金属和非金属的协同合为高性能非贵金属催化剂提供了可行的途径.
- 本研究提出了一项可行的战略,用于高效大规模生产用于储能应用的先进催化剂.
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