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Pd的原子层沉积:在CoP-Co₂P上施工Schottky交叉口,以实现高效的进化

Yu Liu¹, Yue Huang¹, Dong-Hui Li²

¹National Laboratory of Solid State Microstructure, Materials Science & Engineering Department, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University, Nanjing 210093, P.R China.

ACS applied materials & interfaces

|February 21, 2026

概括

这项研究开发了一种稳定的增强的化电催化剂,用于性进化反应. 与以前的材料相比,新的催化剂表现出优越的性能和耐用性.

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
催化剂是一种催化剂.

背景情况:

基于化 (CoP) 的材料对化演变反应 (HER) 是有前途的,但存在不稳定性.
贵金属催化剂是有效的,但对她来说很昂贵.

研究的目的:

通过原子层沉积 (ALD) 为 HER 设计一种稳定高效的化电催化剂.
调查增强的催化活性和耐久性背后的机制.

主要方法:

在泡 (NF) 上通过ALD制造Pd@CoP-Co2P Schottky连接.
HER和氧演化反应 (OER) 性能的电化学表征.
机械学研究的X射线光电子光谱 (XPS) 和密度函数理论 (DFT).

主要成果:

实现了超低的负荷 (0.06重量%) 显著降低了HER超电位 (55mV在10mA cm-2) 和增强的稳定性 (300小时).
证明了显著的双功能活性与OER性能 (177 mV在10 mA cm-2) 和300小时的稳定性.
XPS和DFT发现,Pd Schottky结调节了CoP-Co2P的电子结构,优化了Gibbs自由能量并防止了降解.

结论:

通过接口工程,ALD是一种强大的技术,用于通过接口工程创建耐用的过渡金属化物电催化剂.
Pd@CoP-Co2P Schottky交叉路口有效地提高了 HER 和 OER 的性能和稳定性.
这些发现为开发用于清洁能源应用的先进电催化剂铺平了道路.

关键词:

斯科特基十字路口是斯科特基十字路口.原子层沉积的原子层沉积.的化物是的化物.气演化反应反应的反应氧气进化反应反应氧气进化反应

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