4 papers · 1 filter
Exploring the Surface Segregation of Rh Dopant in PtNi Nanoparticles through Atom Probe Tomography Analysis
Se-Ho Kim, Hosun Jun, Kyuseon Jang +3
Proton exchange membrane fuel cells hold promise as energy conversion devices for hydrogen-based power generation and storage. However, the slow kinetics of the oxygen reduction at…
Revealing compositional evolution of PdAu electrocatalyst by atom probe tomography
Leonardo Shoji Aota, Se-Ho Kim, Chanwon Jung +2
Pd-based electro-catalysts are a key component to improve the methanol oxidation reaction (MOR) kinetics from alcohol fuel cells. However, the performance of such catalysts is degr…
Atom probe analysis of BaTiO3 enabled by metallic shielding
Se-Ho Kim, Kihyun Shin, Xuyang Zhou +6
Atom probe tomography has been raising in prominence as a microscopy and microanalysis technique to gain sub-nanoscale information from technologically-relevant materials. However,…
Atomic scale evolution of the surface chemistry in Li[Ni,Mn,Co]O2 cathode for Li-ion batteries stored in air
Mahander P. Singh, Se-Ho Kim, Xuyang Zhou +6
Layered LiMO2 (M = Ni, Co, Mn, and Al mixture) cathode materials used for Li-ion batteries are reputed to be highly reactive through their surface, where the chemistry changes rapi…