推进灵活的空气电池:探索非贵金属氧化物用于可扩展工程设计中的增强电子结构调制
Vijayapradeep Subramanian1, S C Karthikeyan1, Mohan Raj Subramaniam1,2
1Graduate School, Department of Energy Storage/Conversion Engineering (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju-si, Jeollabuk-do, Republic of Korea.
Small (Weinheim an der Bergstrasse, Germany)
|January 29, 2026
概括
研究人员开发了具有成本效益的Fe-Mo氧化物作为灵活的空气电池的双功能催化剂. 这些催化剂有效地驱动氧气演变和还原反应,显示出可穿戴能源设备的出色性能和耐用性.
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:
- 灵活的空气电池需要高效,耐用和经济高效的双功能催化剂,用于氧化演变反应 (OER) 和氧减少反应 (ORR).
- 现有的催化剂在实际应用中经常面临性能,稳定性和可扩展性方面的挑战.
研究的目的:
- 开发一种可扩展的合成策略,用于等级化的Fe-Mo氧化物 (FeMoO) 作为双功能催化剂.
- 研究Fe-Mo协同作用对OER和ORR电子结构和催化活性的影响.
- 评估FeMoO催化剂在可充电和灵活的空气电池中的性能.
主要方法:
- 可扩展的反流化策略来合成等级的花样Fe-Mo氧化物.
- 电化学表征包括OER和ORR性能测试 (超电位,半波电位,持久性).
- 在可充电和灵活的近乎固态空气电池中集成和测试FeMoO催化剂.
主要成果:
- Fe0.25Mo0.75O (FeMoO-III) 具有较低的OER超电位 (240 mV在10 mA cm-2) 和显著的稳定性 (>200 h在50 mA cm-2).
- FeMoO-III显示出高ORR半波潜力 (0.86V) 和出色的耐用性.
- 使用FeMoO-III的空气电池表现出高开放电路电压 (1.51V) 和稳定的循环 (>175小时).
- 灵活的空气电池保持稳定的运行 (>56小时在5 mA cm-2).
结论:
- 通过Fe-Mo协同作用合理调节Fe-Mo氧化物电子结构,为高性能双功能催化剂提供了一条实用的途径.
- 开发的FeMoO催化剂适用于可扩展,耐用和灵活的空气电池,特别是可穿戴能源应用.
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