57 citations · 79 across the 14 of their papers we have counts for
15 papers
Chemically tailored planar defect phases in the Ta-Fe μ-phase
Christina Gasper, Nisa Ulumuddin, Siyuan Zhang +5
Intermetallics often exhibit complex crystal structures, which give rise to intricate defect structures that critically influence their mechanical and functional properties. Despit…
Contribution of the oxygen reduction reaction to the electrochemical cathodic partial reaction for Mg-Al-Ca solid solutions
Markus Felten, Siyuan Zhang, Rasa Changizi +5
The electrochemical corrosion rate of Magnesium (Mg) and Mg alloys depends on the stability of the formed surface layer. Based on the Mg substrate, the oxide structure comprises a…
Atomic cluster expansion for Pt-Rh catalysts: From ab initio to the simulation of nanoclusters in few steps
Yanyan Liang, Matous Mrovec, Yury Lysogorskiy +3
Insight into structural and thermodynamic properties of nanoparticles is crucial for designing optimal catalysts with enhanced activity and stability. We present a semi-automated w…
Tailoring the plasticity of topologically close-packed phases via the crystals' fundamental building blocks
Wei Luo, Zhuocheng Xie, Siyuan Zhang +10
Brittle topologically close-packed precipitates form in many advanced alloys. Due to their complex structures little is known about their plasticity. Here, we present a strategy to…
Constructing phase diagrams for defects by correlated atomic-scale characterization
Xuyang Zhou, Prince Mathews, Benjamin Berkels +10
Phase transformations and crystallographic defects are two essential tools to drive innovations in materials. Bulk materials design via tuning chemical compositions has been system…
Chemical and structural characterization of the native oxide scale on a Mg-based alloy
Deborah Neuß, Ingrid E. McCarroll, Siyuan Zhang +11
In this study, the structure and composition of the native oxide forming on the basal plane (0001) of Mg-2Al-0.1Ca is investigated by a correlative approach, combining scanning tra…
Preferred corrosion pathways for oxygen in Al2Ca-twin boundaries and dislocations
Nicolas J. Peter, Daniela Zander, Xumeng Cao +5
With an ongoing discussion on the oxygen diffusion along crystal defects remaining, it is difficult to study this phenomenon in Al containing intermetallic materials due to its rap…
Elemental (im-)miscibility determines phase formation of multinary nanoparticles co-sputtered in ionic liquids
Michael Meischein, Alba Garzón-Manjón, Thomas Hammerschmidt +5
Non-equilibrium synthesis methods allow to alloy bulk-immiscible elements into multinary nanoparticles, which broadens the design space for new materials. Whereas sputtering onto s…
Correlating atom probe tomography with X-Ray and electron spectroscopies to understand microstructure-activity relationships in electrocatalysts
Baptiste Gault, Kevin Schweinar, Siyuan Zhang +4
The search for a new energy paradigm with net-zero carbon emissions requires new technologies for energy generation and storage that are at the crossroad between engineering, chemi…
Dynamic doping and Cottrell atmosphere optimize the thermoelectric performance of n-type PbTe
Yuan Yu, Chongjian Zhou, Xiangzhao Zhang +9
High thermoelectric energy conversion efficiency requires a large figure-of-merit, zT, over a broad temperature range. To achieve this, we optimize the carrier concentrations of n-…
In-situ nitriding of Fe2VAl during laser surface remelting to manipulate microstructure and crystalline defects
Leonie Gomell, Shao-Pu Tsai, Moritz Roscher +5
Tailoring the physical properties of complex materials for targeted applications requires optimizing the microstructure and crystalline defects that influence electrical and therma…
Controlled doping of electrocatalysts through engineering impurities
Se-Ho Kim, Su-Hyun Yoo, Sangyong Shin +9
Fuel cells recombine water from H2 and O2 thereby powering e.g. cars or houses with no direct carbon emission. In anion-exchange membrane fuel cells (AEMFCs), to reach high power d…
Microstructure manipulation by laser-surface remelting of a full-Heusler compound to enhance thermoelectric properties
Leonie Gomell, Tobias Haeger, Moritz Roscher +5
There is an increasing reckoning that the thermoelectric performance of a material is dependent on its microstructure. However, the microstructure-properties relationship often rem…
Dopant-segregation to grain boundaries controls electrical conductivity of n-type NbCo(Pt)Sn half-Heusler alloy mediating thermoelectric performance
Ting Luo, Federico Serrano-Sánchez, Hanna Bishara +12
Science-driven design of future thermoelectric materials requires a deep understanding of the fundamental relationships between microstructure and transport properties. Grain bound…
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…