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Meeting Materials Science & Technology 2020
Symposium Thermodynamics of Materials in Extreme Environments
Presentation Title Nanomaterials from Geopolymer, a Low-temperature Ceramics
Author(s) Dong-Kyun Seo
On-Site Speaker (Planned) Dong-Kyun Seo
Abstract Scope Aluminosilicate geopolymer is a low-temperature ceramics with an immense potential in sustainability applications. Recent innovations in geopolymer synthesis have enabled previously unforeseen levels of control over the nanoscopic morphologies and porosity and have demonstrated that the resulting nanomaterials can show performances far superior to other classes of materials. This talk will illustrate some of these advances with examples relevant to sustainability applications. For example, nanoporous geopolymer materials could be produced and used as an excellent arsenic absorbent for ground water purification and as a highly effective biodiesel catalyst. High-structure geopolymer nanoaggregates can be synthesized with controlled zeolicity for polymer nanocomposite applications with excellent energy-saving performances. Highly-crystalline hierarchical zeolites have been discovered to show an exceptional CO2 capacity, sorption kinetics, selectivity and regeneration capability essential for cost-effective CO2 separation. Superior ion exchange kinetics of the material has been observed for silver-ion zeolite with a superb antibacterial efficacy against antibiotics-resistant MRSA bacteria.


Ab-initio Studies of Point Defects in Alumina under Electrochemical Conditions
Density Functional Theory Modeling on the Positive Effect of H2O in Hydrogen Oxidation Reaction on Perovskite Anode for Solid-oxide Fuel Cells
Effect of Physically Determined Coordination-numbers for Modeling Molten Salt Fuels Using the Modified Quasi-chemical Model (MQM)
Ellingham Diagram to Assess Synthesis Conditions and Chemical Stability of Ceramic Membranes under Operational Conditions
Exploring Extreme Environments via In-situ Electron Microscopy
Helium Irradiation of Gd2Zr2O7 Defect-fluorite Ceramics: Interfacial Phenomena and Radiation Resistance
Improved CMAS Resistance of Environmental Barrier Coatings via Tailoring Phase and Composition of Mixed Rare Earth Silicates
Molecular Modeling of Surface Exchange Mechanisms in Solid Oxide Fuel Cell Cathodes
Nanomaterials from Geopolymer, a Low-temperature Ceramics
Pressure-induced Anomalous Phase Transition Behavior in Layered Tellurene
Stabilities and Ultrafast Dynamics of Sub-nanometer Metal Oxide Clusters
The LiF–ZrF4 System Revisited - An Updated Thermodynamic Description Using New Information Data
Thermochemical Modeling of Molten Salt Systems for Reactors and Simulations with the Molten Salt Thermodynamic Database
Thermodynamic Modelling of Vacancies in Zirconium Carbide
Thermodynamics and Elastic Properties of Cerium Doped Yttrium Aluminum Garnets

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