185 citations · 944 across the 28 of their papers we have counts for
13 papers · 1 filter
Atom probe analysis of battery materials: challenges and ways forward
Se-Ho Kim, Stoichko Antonov, Xuyang Zhou +6
The worldwide developments of electric vehicles, as well as large-scale or grid-scale energy storage to compensate the intermittent nature of renewable energy generation has genera…
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…
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…
Three-dimensional atomically-resolved analytical imaging with a field ion microscope
Shyam Katnagallu, Felipe Felipe F. Morgado, Isabelle Mouton +2
Atom probe tomography (APT) helps elucidate the link between the nanoscale chemical variations and physical properties, but it has limited structural resolution. Field ion microsco…
Reflections on the spatial performance of atom probe tomography in the analysis of atomic neighbourhoods
Baptiste Gault, Benjamin Klaes, Felipe F. Morgado +5
Atom probe tomography is often introduced as providing "atomic-scale" mapping of the composition of materials and as such is often exploited to analyse atomic neighbourhoods within…
Revealing atomic-scale vacancy-solute interaction in nickel
Felipe F. Morgado, Shyam Katnagallu, Christoph Freysoldt +7
Imaging individual vacancies in solids and revealing their interactions with solute atoms remains one of the frontiers in microscopy and microanalysis. Here we study a creep-deform…
Convolutional neural network-assisted recognition of nanoscale L12 ordered structures in face-centred cubic alloys
Yue Li, Xuyang Zhou, Timoteo Colnaghi +6
Nanoscale L12-type ordered structures are widely used in face-centred cubic (FCC) alloys to exploit their hardening capacity and thereby improve mechanical properties. These fine-s…
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…
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…
Magneto-electric Tuning of Pinning-Type Permanent Magnets through Atomic-Scale Engineering of Grain Boundaries
Xinglong Ye, Fengkai Yan, Lukas Schaefer +11
Pinning-type magnets maintaining high coercivity, i.e. the ability to sustain magnetization, at high temperature are at the core of thriving clean-energy technologies. Among these,…
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…