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Updated: Jan 20, 2026

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基于碳支持的CoFe₂O₄/CeO₂的高度稳定的双功能电催化剂/CeO₂异构结构可实现高效的水分离

Zhonglu Hu¹, Cong Wang¹, Fengqi Li¹

¹National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing, P. R. China.

Chemistry, an Asian journal

|January 18, 2026

概括

一种新的-铁氧化物/氧化物复合物在碳上提供了一种稳定,具有成本效益的替代贵金属,用于高效的水分和可持续的生产.

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
可持续能源可持续能源

背景情况:

贵金属催化剂对于水电解来说昂贵且不稳定.
开发高效的非贵金属双功能电催化剂对于可持续的生产至关重要.

研究的目的:

设计和合成一种在碳 (CoFe2O4/CeO2@C) 上固定的新型异界面-铁氧化物/氧化复合物.
为了评估其对整体水分的双功能电催化活性.

主要方法:

简单的热水溶解方法用于催化剂合成.
电化学表征,包括对氧进化反应 (OER) 和进化反应 (HER) 的超电位测量.
结构和电子分析以了解性能机制.

主要成果:

优化的CoFe2O4/CeO2@C催化剂在10 mA cm-2的1M KOH中实现了低超电位 (243 mV的OER,82 mV的HER)
它只需要1.57V用于整体的水分离,性能优于RuO2和Pt/C基准.
催化剂表现出极好的稳定性,24小时后电流密度衰变仅为6.1%,法拉第效率高.

结论:

在CoFe2O4/CeO2@C中的异构接口优化了电子特性,以增强双功能电催化.
本研究提出了一个可扩展的策略,用于开发非贵金属催化剂,以实现高效的水分裂.
开发的催化剂是可持续生产的有希望的候选者.

关键词:

这是一个双功能电催化剂.不同结构异构结构.气演化反应反应的反应总体而言,水分化是水分化的.氧气进化反应反应氧气进化反应

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