A5021869818- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- 2D Materials and Applications
- Inorganic Chemistry and Materials
- Crystal Structures and Properties
- Topological Materials and Phenomena
- Solid-state spectroscopy and crystallography
- Graphene research and applications
- Rare-earth and actinide compounds
- Advanced Battery Materials and Technologies
- Advanced Condensed Matter Physics
- Extraction and Separation Processes
- Sociology and Education Studies
- Chemical Synthesis and Characterization
- Psychology, Coaching, and Therapy
- MXene and MAX Phase Materials
- Advancements in Battery Materials
- Cassava research and cyanide
- Perovskite Materials and Applications
- Corporate Management and Leadership
University of Regensburg
2022-2024
Zurich University of Teacher Education
2023
Liquid-phase chemical exfoliation can achieve industry-scale production of two-dimensional (2D) materials for a wide range applications. However, many 2D with potential applications in quantum technologies often fail to leave the laboratory setting because their air sensitivity and depreciation physical performance after processing. We report simple method create stable, aqueous, surfactant-free, superconducting ink containing phase-pure 1T'-WS2 monolayers that are isostructural...
2M-WS2 is a metastable, superconducting polymorph of the transition metal dichalcogenide (TMD) WS2, comprised layers face-sharing distorted WS6 octahedra. It predicted to host non-Abelian quantum states, promising for topological computing. Due its thermodynamic instability, cannot be synthesized using solid-state synthesis. Rather, it requires top-down approach in which K+ deintercalated from KxWS2; so far, this process has been completed strong oxidizer, K2Cr2O7 dilute H2SO4. A...
Two different polymorphs of the new selenosilicate Na4Si2Se6 were synthesized by solid-state reactions. The high-temperature polymorph Na4Si2Se6-tP24 crystallizes in tetragonal space group P42/mcm (No. 132) with lattice parameters a = 7.2793(2) Å, c 12.4960(4) and V 662.14(3) Å3. main structural motifs are isolated Si2Se6 units two edge-sharing SiSe4 tetrahedra. high-pressure/low-temperature Na4Si2Se6-oP48 orthorhombic Pbca 61) 12.9276(1) b 15.9324(1) 6.0349(1) 1243.00(2) Å3 showing zweier...
Selenotetrelate compounds Na4TtSe4 (Tt = Si, Ge, Sn) were synthesized by solid-state reactions. A new modification of Na4SiSe4 (Na4SiSe4-cP72), which crystallizes in the cubic space group P4̅3n (no. 218) with a 12.130(1) Å and V 1784.453(5) Å3, Na4SnSe4 (Na4SnSe4-tI216), tetragonal I41/acd 142) 14.4053(4) Å, c 28.5751(8) 5929.7(3) discovered. All title exhibit moderate to good sodium ion conductivities, as revealed electrochemical impedance spectroscopy. The formation reaction was further...
Abstract Phase pure Li 3 As and P were synthesized from the elements by a high temperature route. Crystal structures refined powder X‐ray diffraction data. The title compounds further characterized difference thermal analysis, dependent impedance spectroscopy, proving unexpected ion conductivity for As. High pressure behaviour of was modeled via density functional theory, confirming experimentally reported cubic modifications
One-dimensional (1D) systems persist as some of the most interesting because rich physics that emerges from constrained degrees freedom. A desirable route to harness properties therein is grow bulk single crystals a physically three-dimensional (3D) but electronically 1D compound. Most compounds which approach electronic limit still field interactions across other two crystallographic directions and, consequently, deviate models. In this paper, we lay out chemical concepts realize models in...
The sodium tellurosilicates Na
Abstract Li 3 AlAs 2 , GaAs and InAs were obtained from the elements via high temperature synthesis. crystallize in a distorted ⋅ 1 superstructure of antifluorite structure type. The orthorhombic crystal is isotypic to AlP GaP space group Cmce (No. 64) showing layers condensed Tr As 4 ‐tetrahedra ( Tr= Al, Ga). crystallizes InP type superstructure. tetragonal, I4 /acd 142), 3D‐network In 10 ‐supertetrahedra. Structural characterization by powder X‐ray diffraction, thermal analysis,...
An Berufsfachschulen in der Schweiz gehört die politische Bildung zum Lehrauftrag. Lernende können diese mittels Partizipation bei Entscheidungsprozessen an Berufsfachschule selbst erfahren. Ferner durch Freiraum und Mitbestimmung im Unterricht ihre eigene Selbstwirksamkeit steigern. Durch kooperative Prozesse werden Expert*innen Schulorganisationen Entscheidungsfindung einbezogen ermöglichen dadurch wirksame Schulentwicklung. Anhand theoretischer Überlegungen dem Praxisbeispiel...
Liquid-phase chemical exfoliation is ideal to achieve industry scale production of two-dimensional (2D) materials for a wide range application such as printable electronics, catalysis and energy storage. However, many impactful 2D with potentials in quantum technologies can only be studied lab settings due their air-sensitivity, loss physical performance after processing. Here, we report simple method create stable, aqueous, surfactant-free, superconducting ink containing phase-pure...