Iridium nanoparticles embedded in ceria set a new benchmark for PEM water electrolyzers

IF 11.5 Q1 CHEMISTRY, PHYSICAL

Chem Catalysis Pub Date : 2025-04-17 DOI:10.1016/j.checat.2025.101355

David Hernández-Castillo, Kai S. Exner

引用次数: 0

Abstract

In a recent Science article, Shi et al. introduce a novel ripening-induced embedding method for anchoring iridium nanoparticles within a ceria support, dramatically enhancing catalyst stability and performance for proton-exchange membrane (PEM) water electrolysis. Their catalyst achieved exceptional efficiency at an ultra-low iridium loading (0.3 mg/cm²) by maintaining a cell voltage of 1.72 V at 3 A/cm² with outstanding durability (1.33 μV/h degradation) over 6,000 h of operation, thus surpassing the US Department of Energy targets for 2026.

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在铈中嵌入铱纳米颗粒为PEM水电解槽树立了新的标杆

在最近的一篇科学文章中，Shi等人介绍了一种新的成熟诱导嵌入方法，将铱纳米颗粒锚定在铈载体中，显著提高了质子交换膜（PEM）电解的催化剂稳定性和性能。他们的催化剂在超低铱负载（0.3 mg/cm2）下实现了卓越的效率，在3 a /cm2下保持了1.72 V的电池电压，并在超过6000小时的运行中保持了出色的耐久性（1.33 μV/h降解），从而超过了美国能源部2026年的目标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chem Catalysis

CiteScore

10.50

自引率

6.40%

发文量

期刊介绍： Chem Catalysis is a monthly journal that publishes innovative research on fundamental and applied catalysis, providing a platform for researchers across chemistry, chemical engineering, and related fields. It serves as a premier resource for scientists and engineers in academia and industry, covering heterogeneous, homogeneous, and biocatalysis. Emphasizing transformative methods and technologies, the journal aims to advance understanding, introduce novel catalysts, and connect fundamental insights to real-world applications for societal benefit.