Structure of a seeded palladium nanoparticle and its dynamics during the hydride phase transformation

Abstract

Palladium can absorb high volumes of hydrogen, but the morphology and 3D displacements occurring during palladium hydride phase formation are not fully characterized in the literature. Here, the authors use Bragg coherent diffraction imaging to map the strain within an individual palladium nanoparticle before and during hydride phase transformation, identifying a characteristic displacement caused by the seed particle in the nanocrystal.