Low‐Temperature Exsolution of Cobalt From Perovskite Nanoparticles via Bead Milling for Enhanced Electrocatalytic Oxygen Evolution Reaction (Adv. Funct. Mater. 29/2025)
Source abstract
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 La0.6Sr0.4CoO3-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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications · Fuel Cells and Related Materials
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Affiliations
Department of Materials Science and Engineering Pohang University of Science and Technology (POSTECH) Gyeongbuk 37673 Republic of Korea
Pohang Accelerator Laboratory Gyeongbuk 37673 Republic of Korea
Department of Materials Science and Engineering Seoul National University Seoul 08826 Republic of Korea
Research Institute of Advanced Materials Seoul National University Seoul 08826 Republic of Korea
References
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