55 citations · 193 across the 6 of their papers we have counts for
6 papers
Correlative 3D Mapping of Structure, Composition, and Valence State Dynamics in Battery Cathodes via Simultaneous ADF-EDS-EELS Tomography
Jaewhan Oh, Sunggu Kim, Chaehwa Jeong +6
Understanding degradation in battery cathodes and other functional materials requires simultaneous knowledge of structural, chemical, and electronic changes in three dimensions (3D…
Atomic-scale 3D structural dynamics and functional degradation of Pt alloy nanocatalysts during the oxygen reduction reaction
Chaehwa Jeong, Juhyeok Lee, Hyesung Jo +6
Pt-based electrocatalysts are the primary choice for fuel cells due to their superior oxygen reduction reaction (ORR) activity. To enhance ORR performance and durability, extensive…
Revealing the Three-Dimensional Arrangement of Polar Topology in Nanoparticles
Chaehwa Jeong, Juhyeok Lee, Hyesung Jo +8
In the early 2000s, low dimensional systems were predicted to have topologically nontrivial polar structures, such as vortices or skyrmions, depending on mechanical or electrical b…
Revealing 3-dimensional core-shell interface structures at the single-atom level
Hyesung Jo, Dae Han Wi, Taegu Lee +12
Nanomaterials with core-shell architectures are prominent examples of strain-engineered materials, where material properties can be designed by fine-tuning the misfit strain at the…
Direct observation of three-dimensional atomic structure of twinned metallic nanoparticles and their catalytic properties
Juhyeok Lee, Chaehwa Jeong, Yongsoo Yang
We determined a full 3D atomic structure of a dumbbell-shaped Pt nanoparticle formed by a coalescence of two nanoclusters using deep learning assisted atomic electron tomography. F…
Single-atom level determination of 3-dimensional surface atomic structure via neural network-assisted atomic electron tomography
Juhyeok Lee, Chaehwa Jeong, Yongsoo Yang
Functional properties of nanomaterials strongly depend on their surface atomic structure, but they often become largely different from their bulk structure, exhibiting surface reco…