A5040387112- Carbon Dioxide Capture Technologies
- Chemical Looping and Thermochemical Processes
- Membrane Separation and Gas Transport
- CO2 Sequestration and Geologic Interactions
- Industrial Gas Emission Control
- Phase Equilibria and Thermodynamics
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Catalytic Processes in Materials Science
- Ammonia Synthesis and Nitrogen Reduction
- Adsorption and Cooling Systems
- Catalysis and Oxidation Reactions
- Zeolite Catalysis and Synthesis
- CO2 Reduction Techniques and Catalysts
ETH Zurich
2020-2023
RWTH Aachen University
2018-2020
Joint Center for Artificial Photosynthesis
2020
Lawrence Berkeley National Laboratory
2020
Efficient operation is crucial for the deployment of photoelectrochemical CO2 reduction devices large-scale artificial photosynthesis. In these devices, undesired transport products from electrode to oxidation may occur through a liquid electrolyte and an ion exchange membrane, reducing device productivity increasing energy required product purification. Our work investigated crossover membranes separating cathode anode compartments in cells. The concentrations produced by on copper foil...
Ethylene is an essential building block in the petrochemical industry and it almost exclusively produced via ethane steam cracking, a well-established albeit highly energy carbon dioxide intensive process. The oxidative dehydrogenation of promising alternative to cracking reactions due its exothermic nature, which decreases overall requirements footprint. need capital air separation unit for producing oxygen limits potential industrial application. current study investigates route, i.e....
Abstract To advance CaO‐based CO 2 sorbents it is crucial to understand how their structural parameters control the cyclic uptake. Here, with varying ratios of Na 3 :CaCO are synthesized via mechanochemical activation a mixture and CaCO investigate effect sodium species on structure, morphology, carbonation rate uptake sorbents. The addition in range 0.1–0.2 mol% improves by up 80% after 10 cycles when compared ball‐milled bare , while for loadings >0.3 decreases more than 40%. Energy...
The development of effective CO2 sorbents is vital to achieving net-zero emission targets. MgO promoted with molten salts an emerging class sorbents. However, the structural features that govern their performance remain elusive. Using in situ time-resolved powder x-ray diffraction, we follow dynamics a model NaNO3-promoted, MgO-based sorbent. During first few cycles capture and release, sorbent deactivates owing increase sizes crystallites, reducing turn abundance available nucleation...
Yolk(CaO)–shell(ZrO 2 )-structured sorbents yield superior materials for high-temperature CO capture by mitigating deactivation via sintering and mixed phase (CaZrO 3 ) formation.
CaO-based sorbents are cost-efficient materials for high-temperature CO2 capture, yet they rapidly deactivate over carbonation-regeneration cycles due to sintering, hindering their utilization at the industrial scale. Morphological stabilizers such as Al2O3 or SiO2 (e.g., introduced via impregnation) can improve sintering resistance, but still through formation of mixed oxide phases and phase segregation, rendering stabilization inefficient. Here, we introduce a strategy mitigate these...