[Figure 1] Schematic illustration of single-atom catalyst synthesis based on atomic-level precision control technology (IMAGE)

National Research Council of Science & Technology

[Figure 1] Schematic illustration of single-atom catalyst synthesis based on atomic-level precision control technology

Caption

This schematic illustrates the fabrication of a single-atom catalyst by introducing a molecular anchoring agent (phytic acid) into a manganese (Mn)-nickel (Ni) layered double hydroxide (LDH) framework, enabling uniform immobilization of iridium (Ir) at the atomic scale. The engineered single-atom hosting sites stably disperse iridium single atoms, resulting in an 'All-in-one' anion exchange membrane (AEM) water electrolysis catalyst capable of simultaneously driving both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) with a single catalyst.

Credit

Korea Institute of Science and Technology

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