2024
DOI: 10.3740/mrsk.2024.34.4.208
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Ultrathin Carbon Shell-Coated Intermetallic Alloy Nanoparticles for Oxygen Reduction Reaction in Fuel Cells

Hyeonwoo Choi,
Keonwoo Ko,
Yoonseong Choi
et al.

Abstract: To fabricate intermetallic nanoparticles with high oxygen reduction reaction activity, a high-temperature heat treatment of 700 to 1,000 °C is required. This heat treatment provides energy sufficient to induce an atomic rearrangement inside the alloy nanoparticles, increasing the mobility of particles, making them structurally unstable and causing a sintering phenomenon where they agglomerate together naturally. These problems cannot be avoided using a typical heat treatment process that only controls the gas … Show more

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