Low-Temperature Exsolution of Cobalt From Perovskite Nanoparticles via Bead Milling for Enhanced Electrocatalytic Oxygen Evolution Reaction (Adv. Funct. Mater. 29/2025)

IF 18.5 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Functional Materials Pub Date : 2025-07-21 DOI:10.1002/adfm.70415

Sang-Mun Jung, Youngkwang Kim, Dong-Hwan Yang, Yoona Kim, Kyu-Su Kim, Gogwon Choe, Jinhyeon Lee, Kyuwook Ihm, Si-Young Choi, Junwoo Son, Yong-Tae Kim

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引用次数: 0

Abstract

Metal Exsolution

To enable efficient hydrogen production via anion exchange membrane water electrolysis (AEMWE), active and stable oxygen evolution reaction (OER) catalysts are essential. In article number 2506227, Junwoo Son, Yong-Tae Kim, and co-workers present a simple and scalable method for low-temperature (300 °C) metal exsolution from perovskite nanoparticles using “bead milling”. This process reduces particle size (≤50 nm) and crystallinity, thereby facilitating the exsolution of Co nanoparticles from La_0.6Sr_0.4CoO_3-δ. The resulting catalysts exhibit nearly sixfold higher OER mass activity compared to pristine materials and demonstrate the highest activity–stability factor among the bead-milled samples.

Abstract Image

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用球磨法低温析出钙钛矿纳米颗粒中的钴，增强电催化析氧反应（Adv.功能）。板牙。29/2025)

为了通过阴离子交换膜电解（AEMWE）高效制氢，活性和稳定的析氧反应（OER）催化剂是必不可少的。在文章编号2506227中，Junwoo Son， Yong-Tae Kim及其同事提出了一种简单且可扩展的方法，使用“珠磨”从钙钛矿纳米颗粒中低温（300°C）析出金属。该工艺减小了La0.6Sr0.4CoO3-δ的粒径（≤50 nm）和结晶度，有利于Co纳米颗粒的析出。与原始材料相比，所得催化剂的OER质量活性高出近六倍，并且在珠磨样品中表现出最高的活性稳定因子。

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来源期刊

Advanced Functional Materials 工程技术-材料科学：综合

CiteScore

29.50

自引率

4.20%

发文量

2086

审稿时长

2.1 months

期刊介绍： Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.