2025年3月27日，复旦大学张波课题组在《德国应用化学》杂志发表论文，报道了增强异质界面耦合用于工业级质子交换膜水电解。

在此，该研究组报道了一种三元异质结构催化剂，RuIrOx-CeO2，具有RuIrOx相和CeO₂相之间的强耦合界面。这种强耦合界面表现出电子和氧的相互作用，有效地抑制了活性相分离。当应用于PEMWE（阳极为0.8 mgIr cm^-2，阴极为0.4 mg_Pt cm^-2）时，所得到的催化剂表现出令人印象深刻的活性，在PEMWE中1.75 V的电池电压下，电流密度达到3.0 A cm^-2，在5.0 A cm^-2下稳定工作2000小时，电压下降1 μV h^-1。

据了解，质子交换膜水电解（PEMWE）的试验级应用在于能够在高电流密度下运行，以获得更高的功率密度和更低的运行成本。然而，这对催化剂的整体性能提出了重大挑战。异质界面工程已成为解决阳极本征活性限制的理想策略。然而，由于异质结构催化剂的界面结构脆弱，不同组分之间的相互作用弱，难以保持其高活性和长期稳定性。

附：英文原文

Title: Enhancing Heterointerface Coupling for Durable Industrial-Level Proton Exchange Membrane Water Electrolysis

Author: Kai Sun, Wei Mao, Lujie Jin, Wenjuan Shi, Wenzhe Niu, Chenyang Wei, Yixiang He, Qisheng Yan, Ruijie Wang, Youyong Li, Bo Zhang

Issue&Volume: 2025-03-27

Abstract: The industrial-level application of proton exchange membrane water electrolysis (PEMWE) lies in the capacity of operating at high current density in order for higher power density and lower operational cost. However, it poses a significant challenge to the overall performance of catalysts. Heterointerface engineering has emerged as an ideal strategy for addressing the anodic intrinsic activity limitations. Nevertheless, due to the fragile interface structure with weak interactions between different components, it is difficult to maintain the high activity and long-term stability of heterostructured catalysts. Herein, we report a ternary heterostructured catalyst, RuIrOx-CeO2, featuring a strong-coupled interface between RuIrOx phase and CeO2 phase. This strong-coupled interface exhibits both electronic and oxygen interaction, which effectively inhibits the active phase separation. When applied in PEMWE (0.8 mgIr cm-2 for the anode and 0.4 mgPt cm-2 for the cathode), the resultant catalyst expresses impressive activity, achieving a current density of 3.0 A cm-2 at a cell voltage of 1.75 V in PEMWE and demonstrates a stable 2000-h operation at 5.0 A cm-2 with an imperceptible voltage degradation of <1 μV h-1.

DOI: 10.1002/anie.202502250

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202502250