A5080416681- Inorganic Fluorides and Related Compounds
- Inorganic Chemistry and Materials
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Catalytic Processes in Materials Science
- Crystal Structures and Properties
- Extraction and Separation Processes
- Oxidative Organic Chemistry Reactions
- Hydrogen Storage and Materials
- Advanced Condensed Matter Physics
- Luminescence Properties of Advanced Materials
Technical University of Darmstadt
2017-2022
Material (Belgium)
2017-2021
Stuttgart Observatory
2021
University of Stuttgart
2021
Fluoride-ion batteries: a comprehensive review.
This article reports on the investigation of LaSrMnO4 with K2NiF4 type structure for use as an intercalation based high voltage cathode material capacity fluoride ion batteries (FIBs). Charging was performed against PbF2 anodes and shows that proceeds stepwise to form LaSrMnO4F LaSrMnO4F2–x. Ex-situ X-ray diffraction experiments were recorded different cutoff voltages a deeper understanding charging process, highlighting additional potential method be used adjust fluorine contents more...
La<sub>2</sub>CoO<sub>4</sub>, a new promising intercalation-based cathode material for fluoride ion batteries with improved cycling stability.
Abstract Fluoride ion batteries (FIBs) are a recent alternative all-solid-state battery technology. However, the FIB systems proposed so far suffer from poor cycling performance. In this work, we report La 2 NiO 4.13 with Ruddlesden-Popper type structure as an intercalation-based active cathode material in all solid-state excellent The critical charging conditions to maintain conductivity of cell were determined, which seems be major obstacle towards improving stability FIBs. For optimized...
Abstract All‐solid‐state lithium ion batteries (ASS‐LIBs) are promising due to their safety and higher energy density as compared that of conventional LIBs. Over the next few decades, tremendous amounts spent ASS‐LIBs will reach end cycle life would require recycling in order address waste management issue along with reduced exploitation rare elements. So far, only very limited studies have been conducted on ASS‐LIBS. Herein, we investigate Li 7 La 3 Zr 2 O 12 (LLZO) solid‐state electrolyte...
La2CoO4 has been introduced as a promising intercalation-based cathode material for all-solid-state reversible fluoride ion batteries (ASS-FIBs). However, the cycling behavior of cells using and conversion-based metal/metal composites anode is still not comparable with current state art functional lithium batteries. A great part this capacity fading could originate from systems, which there lack understanding fundamental conversion mechanism within an ASS-FIB. In work, we have focused on...
Abstract Herein, we report the successful electrochemical fluorination and defluorination of schafarzikite‐type compounds with composition Fe 0.5 M Sb 2 O 4 (M=Mg or Co). We show that methods can present a more controllable less environmentally damaging route for fluorinating in contrast to traditional involve heating samples F ‐rich atmospheres. The reactivity host lattices fluoride during makes this material an interesting candidate fluoride‐ion battery applications. However, deleterious...
Today, metal-N- as well metal-S-doped carbon materials are known to catalyze the hydrogen evolution reaction (HER). However, especially N- and S-co-doped catalysts reach highest activity, but it remains unclear if activity is related MNx or MSy (M=metal) sites. In this work we apply a simple method for multi-heteroatom doping investigate effect of cobalt content on HER in acidic medium. The CoNx CoSy sites were evidenced basis structural characterization by Raman, X-ray induced photoelectron...
Cobalt hydroxide species are at the origin of OER activity multiheteroatom doped carbon catalysts.
Two iridium-based catalysts (namely IrSn and IrNi) are synthesised <italic>via</italic> a polyol route involving capping agents.