Journal Cover Image (IMAGE)
Caption
A visual representation of the synthesis process of dome-shaped hollow NiPt nanocatalysts incorporating Ni3Pt5 ordered structures, published as the Back Cover of Advanced Materials. The image illustrates atomic-scale transitions driven by ultrasound at room temperature: from initial random alloy seed formation (Pt-rich) to particle growth, hollow structure formation, and alloying. Continued ultrasound exposure then induces atomic ordering within the particles. The blue and orange spheres represent platinum and nickel atoms, respectively. The resulting ordered structure inhibits metal leaching, enabling high catalytic activity and long-term durability in proton exchange membrane fuel cells (PEMFCs), with potential applications in heavy or light-duty vehicles,, aircraft, and large-scale power generation systems.
Credit
Korea Institute of Science and Technology(KIST)
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Original content