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在MOF衍生的PtNi/C催化剂中Pt纳入Pt的孔尺寸效应,以促进的进化

Yuting Fu¹, Xinyuan Xu¹, Rong Lin¹

¹Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, Zhejiang, P. R. China.

Inorganic chemistry

|August 3, 2025

概括

我们开发了高效的双金属- (PtNi) 纳米颗粒,嵌入在多孔碳纳米材料中,用于进化反应 (HER). 大孔衍生催化剂在水电解中表现出卓越的性能,提供了具有成本效益的解决方案.

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:

演化反应 (HER) 对于水的电解和可再生能源的储存至关重要.
开发高效和成本效益的电催化剂对于广泛采用至关重要.

研究的目的:

在HER的金属有机框架 (MOF) 中合成和评估双金属PtNi纳米粒子.
为了研究孔隙结构对催化剂性能的影响.

主要方法:

在MOF衍生碳中嵌入两种类型的双金属PtNi纳米粒子 (L-PtNi-C和S-PtNi-NC) 的合成.
使用适合孔径大小和组成分析的技术对材料进行表征.
在酸性和性介质中对HER性能进行电化学测试.

主要成果:

大孔衍生的L-PtNi-C催化剂与狭孔S-PtNi-NC相比,表现出优越的HER性能.
L-PtNi-C显示了低超电位 (38-39 mV在-10 mA cm-2) 和超过50小时的稳定性.
协同作用的Pt-Ni合金提高了催化效率,减少了的负载.

结论:

具有大孔的MOF衍生碳纳米材料是高效和稳定的HER电催化剂的有希望的支持.
开发的L-PtNi-C催化剂为水电解提供了具有成本效益和高性能的解决方案.
这项工作展示了基于贵金属的低负载纳米材料在能源应用中的潜力.

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