A5054420679- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Nuclear Materials and Properties
- Graphite, nuclear technology, radiation studies
- Radioactive element chemistry and processing
- Catalytic Processes in Materials Science
- Advancements in Solid Oxide Fuel Cells
- Heat Transfer and Optimization
- Advanced Photocatalysis Techniques
- Heat Transfer and Boiling Studies
- Nanofluid Flow and Heat Transfer
- Electrochemical Analysis and Applications
- Chalcogenide Semiconductor Thin Films
- Semiconductor materials and devices
- Quantum Dots Synthesis And Properties
- Machine Learning in Materials Science
Helmholtz-Zentrum Berlin für Materialien und Energie
2023-2025
Interface (United States)
2023
University of Indonesia
2013
Iridium has emerged as the leading catalyst material for anodic oxygen evolution reaction (OER) in acidic media. Often, iridium is mixed with more stable materials such titanium. For these materials, electronic structure of titanium plays a crucial role since varying degrees oxidation transforms to semiconducting or even insulating phases. Yet, properties Ir-TiOx catalysts have never been systematically studied. In this study, we correlate catalytic performance Ir-TiOx-based OER surface...
The investigation of a wide range energy materials under relevant operation conditions, allowing for real-time investigations the (electro)chemical mechanisms governing performance related applications, is enabled by new Operando Absorption and Emission Spectroscopy at EMIL (OÆSE) endstation in Energy Materials In-situ Laboratory Berlin (EMIL) BESSY II synchrotron facility Berlin, Germany. Currently primarily used X-ray absorption spectroscopy (XAS) studies, OÆSE utilizes undulator-based...
The electronic properties of nine solid phosphorus (P)-containing compounds with varying oxidation states and chemical environments, including GaP(-III), InP(-III), red-P(0), H3P(III)O3, Na2H2P2(IV)O6, H3P(V)O4, KH2P(V)O4, Na2HP(V)O4, InP(V)O4, are investigated using X-ray absorption near-edge structure (XANES) spectroscopy in the hard (P K-edge) soft regime L2,3-edge). We find shifts absorption-edge positions correlate them ligands surrounding P atom, likely causing a different core–hole...
The oxidation of the aqueous H3PO3 in contact with Pt was investigated for a fundamental understanding Pt/aqueous interaction goal providing comprehensive basis further optimization high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs). Ion-exchange chromatography (IEC) experiments suggested that ambient conditions, catalyzes to H3PO4 H2O. X-ray photoelectron spectroscopy (XPS) on different substrates, including Au and Pt, previously treated solutions conducted determine...
tender X-ray absorption near-edge structure (XANES) spectroscopy at the P