三角顺序的Co原子激活了安培级持久生产的基板
Mingyu Ma1,2, Boyi Zhao3, Hongmei Gao1
1State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China.
Nature communications
|December 3, 2025
概括
催化剂中的原子排序提高了性离子交换膜 (AEM) 电解剂的耐用性. 这一策略使得在高电流密度下稳定生产气成为可能,这对于工业应用至关重要.
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
- 催化剂是一种催化剂.
背景情况:
- 性离子交换膜 (AEM) 电解剂在高电流密度等恶劣工作条件下面临着催化剂的耐用性挑战.
- 原子分散催化剂由于弱相互作用而特别脆弱,限制了它们的长期稳定性.
研究的目的:
- 为AEM电解器制造耐用催化剂制定原子排序策略.
- 在工业运行条件下增强催化剂的稳定性和活性.
主要方法:
- 在化 (VN) 格子内制造 (Co) 三角顺序,使用光诱导自组装方法.
- 在AEM水电解器中,催化剂结构和性能的表征.
主要成果:
- 同原子在热力学上有利于在VN网格中的三角布局,创造了一个原子有序的催化剂.
- 同三角顺序激活相邻的V原子,从而在高电流密度 (>1A cm−2) 时产生高效的.
- 催化剂在1 A cm-2时表现稳定,AEM水电解仪达到1.97 V,具有长期耐用性.
结论:
- 原子排序为设计催化剂提供了一种可行的策略,可以平衡AEM电解器的高活性和长期稳定性.
- 开发的催化剂设计适用于要求强大的性能的工业生产应用.
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