东南大学彭生杰团队近日通过合理设计不对称Pt-O-Cu配体，稳定活性位点，实现工业标准碱性析氢。相关论文于2025年6月11日发表在《德国应用化学》杂志上。

通过界面工程开发高效耐用的铂基催化剂仍然是高pH条件下水电解的一项关键但具有挑战性的任务。研究组在PtCu₂（111）/CuO（002）异质结界面设计了一种独特的不对称Pt-O-Cu配体，以促进碱性HER动力学。

该配体通过加速界面上的电子转移来平衡H*在Pt位点的吸附和解吸，同时增强H₂O在Cu位点的吸附。此外，强d-d/sp杂化和位于Pt-O-Cu配体上的更多离域d-DOS增强了原子间相互作用，这有助于缓解Pt和Cu原子的溶解和聚集。 

正如预期的那样，PtCu₂/CuO在碱性、酸性和中性电解质中分别需要10、14和47 mV的超低过电位，以实现10 mA cm²的电流密度。更令人惊讶的是，PtCu₂/CuO||RuO₂双电极水解电池可以在模拟的工业环境中以1A cm²的高电流密度稳定运行500多小时，显示出巨大的工业应用潜力。这项工作为工业上相关的高性能铂基碱性析氢催化材料的设计提供了一种新的范式。

附：英文原文

Title: Rationally Designed Asymmetric Pt-O-Cu Ligand to Stabilize Active Sites towards Superior Industrial-Standard Alkaline Hydrogen Evolution

Author: Minming Jiang, Jiang Xu, Qi Zhou, Yujie Chen, Paul Munroe, Linlin Li, Zong-Han Xie, Yuping Wu, Shengjie Peng

Issue&Volume: 2025-06-11

Abstract: Developing efficient and durable Pt-based catalysts via interface engineering remains a critical yet challenging task for water electrolysis under high-pH conditions. Herein, we designed a unique asymmetric Pt-O-Cu ligand at the PtCu2(111)/CuO(002) heterojunction interface to promote alkaline HER kinetics. This ligand balances the adsorption and desorption of H* on the Pt site by accelerating electron transfer at the interface while enhancing the adsorption of H2O on the Cu site. Moreover, the strong d-d/sp hybridization and more delocalized d-DOS located at the Pt-O-Cu ligand enhance the interatomic interactions, which helps alleviate the dissolution and agglomeration of Pt and Cu atoms. As anticipated, the PtCu2/CuO requires ultra-low overpotentials of 10, 14 and 47 mV in, respectively, alkaline, acidic and neutral electrolytes to achieve a current density of 10 mA cm2. Even more surprising is that the PtCu2/CuO||RuO2 dual-electrode hydrolysis cell can stably operate at a high current density of 1 A cm2 for more than 500 h in a simulated industrial environment, demonstrating significant potential for industrial applications. This work provides a new paradigm for the design of industrially relevant high-performance Pt-based alkaline hydrogen evolution catalytic materials.

DOI: 10.1002/anie.202510259

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202510259