A5009836312- CO2 Sequestration and Geologic Interactions
- Clay minerals and soil interactions
- 2D Materials and Applications
- High-pressure geophysics and materials
- Dendrimers and Hyperbranched Polymers
- Magnetism in coordination complexes
- Advanced NMR Techniques and Applications
- Advancements in Battery Materials
- Zeolite Catalysis and Synthesis
- Graphene research and applications
- TiO2 Photocatalysis and Solar Cells
- Radioactive element chemistry and processing
- Multiferroics and related materials
- Covalent Organic Framework Applications
- Polymer Surface Interaction Studies
- Pigment Synthesis and Properties
- Nuclear materials and radiation effects
- Electronic and Structural Properties of Oxides
- Lanthanide and Transition Metal Complexes
- Electrostatics and Colloid Interactions
- Carbon Dioxide Capture Technologies
- Advanced Photocatalysis Techniques
- Advanced Battery Materials and Technologies
- Force Microscopy Techniques and Applications
- Perovskite Materials and Applications
Bavarian Polymer Institute
2020-2023
University of Bayreuth
2017-2023
Abstract 2D materials have proved their potential in nearly every area of material science and chemistry. Unfortunately, large‐scale production nanosheets is not straightforward. Current methods suffer from low yield, uncontrollable defects, requires a high‐energy input. There always tradeoff between high quality yield. In this review, the alternative highlighted to existing nanosheet – 1D dissolution, historically known as osmotic swelling. As thermodynamically driven, therefore...
Exploiting the full potential of layered materials for a broad range applications requires delamination into functional nanosheets. Delamination via repulsive osmotic swelling is driven by thermodynamics and represents most gentle route to obtain nematic liquid crystals consisting exclusively single-layer This mechanism was, however, long limited very few compounds, including 2:1-type clay minerals, titanates, or niobates. Despite great zeolites their microporous counterparts, nanosheet...
Clay minerals are abundant in caprock formations for anthropogenic storage sites CO2, and they potential capture materials CO2 postcombustion sequestration. We investigate the response to exposure of dried fluorohectorite clay intercalated with Li+, Na+, Cs+, Ca2+, Ba2+. By situ powder X-ray diffraction, we demonstrate that or Ba2+ does not swell Li-fluorohectorite swell. A linear uptake is observed by gravimetric adsorption, relate adsorption tightly bound residual water, which exposes...
Understanding the origins of fast ion transport in solids is important to develop new ionic conductors for batteries and sensors. Nature offers a rich assortment rather inspiring structures elucidate these origins. In particular, layer-structured materials are prone show facile Li
Clay minerals can adsorb large amounts of CO2 and are present in anthropogenic storage sites for CO2. Nanoscale functionalization smectite clay is essential developing technologies carbon sequestration based on these materials safe-guarding relevant long-term sites. We investigate the adsorption mechanisms dried hydrated synthetic Ni-exchanged fluorohectorite clay—using a combination powder X-ray diffraction, Raman spectroscopy, inelastic neutron scattering. Both show crystalline swelling...
Developing new technologies for carbon sequestration and long-term storage is important. Clay minerals are interesting in this context as they low-cost, naturally abundant, can adsorb considerable amounts of CO2, present sites anthropogenic carbon. Here, to better understand the intercalation mechanisms CO2 dehydrated hydrated synthetic Na-fluorohectorite clay, we have combined powder X-ray diffraction, inelastic quasi-elastic neutron scattering, density functional theory calculations. For...
Due to the compact two-dimensional interlayer pore space and high density of molecular adsorption sites, clay minerals are competitive materials for carbon dioxide capture. We demonstrate that with a decreasing surface charge in mineral, capacity CO2 increases, while pressure threshold swelling response decreases. Synthetic nickel-exchanged fluorohectorite was investigated three different layer charges varying from 0.3 0.7 per formula unit Si4O10F2. associate mechanism higher more accessible...
A colored platy substrate with appreciable aspect ratio can improve the hiding power while extending color range of pearlescent pigments. One oldest synthetic pigments, Egyptian blue, possesses a layered structure and morphology, making it promising for which derives its blue from Cu II . Unfortunately, existing synthesis routes are either not technically benign or lack natural morphology. Here, we introduce new route starting large, square‐shaped platelets sodium silicate (NaRUB‐18). As...
The combination of polymers with nanoparticles offers the possibility to obtain customizable composite materials additional properties such as sensing or bistability provided by a switchable spin crossover (SCO) core. For all applications, precise control over size and shape nanomaterial is highly important it will significantly influence its final properties. By confined synthesis iron(II) SCO coordination within P4VP cores polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) micelles in THF...
Abstract Clays are not only ubiquitous in nature, but they also used huge quantities a broad range of industrial applications, such as thixotropic drilling fluids, ore pelletizers, waste disposal sealants, or fillers polymer nanocomposites. In order to model environmental processes design new materials on rational base, it is prime importance determine and possibly modify the interfacial properties clay platelets at solid/electrolyte interface. this context, fundamental question rises how...
In an attempt to improve the electronic conductivity Fe II ‐rich brittle mica, a near end‐member Ferro‐Kinoshitalite (BaFe 3 Si 2 Al O 10 F ) was synthesized via melt approach. The structure is of 1M polytype [ = 5.4013(11) Å, b 9.3659(19) c 9.987(2) β 100.52(3)°, C 2/ m ] and iron content clearly exceeds natural abundance levels. crystal discussed with respect established limits isomorphous substitution based on geometrical considerations compared other iron‐rich micas. It evidenced that...
The combination of polymers with nanoparticles offers the possibility to obtain customizable composite materials additional properties such as sensing or bistability provided by a switchable spin crossover (SCO) core. For all applications, precise control over size and shape nanomaterial is highly important it will significantly influence its final properties. By confined synthesis iron(II) SCO coordination within P4VP cores polystyrene-block-poly-4-vinylpyridine (PS-b-P4VP) micelles in THF...