24 citations · 77 across the 17 of their papers we have counts for
17 papers · 1 filter
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…
Revisiting in-depth chemical analysis for alkali ions-exchanged glass
Se-Ho Kim, Leigh T. Stephenson, Torsten Schwarza +1
The upcoming flexible ultra-thin glass for foldable displays has attracted widespread attention as an alternative to rigid electronic smartphones. However, the detailed composition…
Tracking the Mn diffusion in the carbon-supported nanoparticles through the collaborative analysis of atom probe and evaporation simulation
Chanwon Jung, Hosun Jun, Kyuseon Jang +2
Carbon-supported nanoparticles have been used widely as efficient catalysts due to their enhanced surface-to-volume ratio. To investigate their structure-property relationships, ac…
Origins of the hydrogen signal in atom probe tomography
Su-Hyun Yoo, Se-Ho Kim, Eric Woods +3
Atom Probe Tomography (APT) analysis is being actively used to provide near-atomic-scale information on the composition of complex materials in three-dimensions. In recent years, t…
Laser-equipped gas reaction chamber for probing environmentally sensitive materials at near atomic scale
Heena Khanchandani, Ayman A. El-Zoka, Se-Ho Kim +6
Numerous metallurgical and materials science applications depend on quantitative atomic-scale characterizations of environmentally-sensitive materials and their transient states. S…
Understanding alkali contamination in colloidal nanomaterials to unlock grain boundary impurity engineering
Se-Ho Kim, Su-Hyun Yoo, Poulami Chakraborty +10
Metal nano-aerogels combine a large surface area, a high structural stability, and a high catalytic activity towards a variety of chemical reactions. The performance of such nanost…
Three-dimensional Atomic Mapping of Ligands on Nanoparticles
Kyuseon Jang, Se-Ho Kim, Hosun Jun +4
Capping ligands are crucial to synthesize colloidal nanoparticles with novel functional properties. However, the interaction between capping ligands and their interaction with the…
Phase Separation and Anomalous Volume Expansion in Frozen Microscale Eutectic Indium-Gallium upon Remelting
Se-Ho Kim, Leigh T. Stephenson, Alisson K. da Silva +2
The eutectic Ga-In (EGaIn) alloy has low vapor pressure, low toxicity, high thermal and electrical conductivities, and thus has shown a great potential for smart material applicati…
Multidimensional thermally-induced transformation of nest-structured complex Au-Fe nanoalloys towards equilibrium
Jacob Johny, Oleg Prymak, Marius Kamp +9
Bimetallic nanoparticles are often superior candidates for a wide range of technological and biomedical applications, thanks to their enhanced catalytic, optical, and magnetic prop…
A liquid metal encapsulation for analyzing porous nanomaterials by atom probe tomography
Se-Ho Kim, Ayman A. El-Zoka, Baptiste Gault
Analyzing porous (nano)materials by the atom probe tomography has been notoriously difficult. The electrostatic pressure intensifies stress at voids which results in premature fail…
Characterization of Pd and Pd@Au core-shell nanoparticles using atom probe tomography and field evaporation simulation
Se-Ho Kim, Kyuseon Jang, Phil Woong Kang +6
We report on atom probe tomography analyses of Pd and Pd@Au nanoparticles embedded in a Ni matrix and the effects of local evaporation field variations on the atom probe data. In o…
Influence of microstructure and atomic-scale chemistry on iron ore reduction with hydrogen at 700°C
Se-Ho Kim, Xue Zhang, Kevin Schweinar +10
With 1.85 billion tons produced per year, steel is the most important material class in terms of volume and environmental impact. While steel is a sustainability enabler, for insta…
Different Photostability of BiVO4 in Near-pH-Neutral Electrolytes
Siyuan Zhang, Ibbi Ahmet, Se-Ho Kim +11
Photoelectrochemical water splitting is a promising route to produce hydrogen from solar energy. However, corrosion of semiconducting photoelectrodes remains a fundamental challeng…
Controlling the oxidation of magnetic and electrically conductive solid-solution iron-rhodium nanoparticles synthesized by Laser Ablation in Liquids
Ruksan Nadarajah, Shabbir Tahir, Joachim Landers +11
This study focuses on the synthesis of FeRh nanoparticles via pulsed laser ablation in liquid and on controlling the oxidation of the synthesized nanoparticles. Formation of monomo…
Atomic scale mapping of impurities in partially reduced hollow TiO2 nanowires
Joohyun Lim, Se-Ho Kim, Raquel Aymerich Armengol +5
The incorporation of impurities during the chemical synthesis of nanomaterials is usually uncontrolled and rarely reported because of the formidable challenge that constitutes meas…
Direct imaging of dopant and impurity distributions in 2D MoS
Se-Ho Kim, Joohyun Lim, Rajib Sahu +4
Molybdenum disulfide (MoS) nanosheet is a two-dimensional material with high electron mobility and with high potential for applications in catalysis and electronics. We synthes…
Status and direction of atom probe analysis of frozen liquids
Patrick Stender, Baptiste Gault, Tim M. Schwarz +8
Imaging of liquids and cryogenic biological materials by electron microscopy has been recently enabled by innovative approaches for specimen preparation and the fast development of…