A5027670758- Electronic and Structural Properties of Oxides
- Magnetic and transport properties of perovskites and related materials
- Semiconductor materials and devices
- Advanced Condensed Matter Physics
- Catalytic Processes in Materials Science
- biodegradable polymer synthesis and properties
- Polymer crystallization and properties
- Carbon dioxide utilization in catalysis
- Thermochemical Biomass Conversion Processes
- Chemistry and Chemical Engineering
- Multiferroics and related materials
- Catalysis for Biomass Conversion
- Biofuel production and bioconversion
- Additive Manufacturing and 3D Printing Technologies
- Dendrimers and Hyperbranched Polymers
- Polymer composites and self-healing
- Surface and Thin Film Phenomena
- Advanced Polymer Synthesis and Characterization
- Microplastics and Plastic Pollution
Northwestern University
2020-2021
Argonne National Laboratory
2020
University of Missouri
2020
University of Kentucky
2020
Atomic layer deposition (ALD) is a well-established technique for depositing nanoscale coatings with pristine control of film thickness and composition. The trimethylaluminum (TMA) water (H2O) ALD chemistry inarguably the most widely used yet to date, we have little information about atomic-scale structure amorphous aluminum oxide (AlOx) formed by this chemistry. This lack understanding hinders our ability establish process-structure-property relationships ultimately limits technological...
Sourcing polymers from biobased materials is desirable for a transition to more sustainable world. However, finding new monomers sourced molecules requires extensive experimental effort, due the fact that most biomolecules lack functional groups or properties needed serve as monomer in particular polymeric system without chemical modification. Here, we demonstrate computational screening method obtain of nonisocyanate polyurethane (NIPU), polyhydroxyurethane (PHU), biomolecules. Our...
We report the structural and optical properties of nanoscale Sr2IrO4 freestanding thin films fabricated using a water-soluble Sr3Al2O6 layer. The coherent lattice structure, phonon modes, two-magnon Raman scattering, absorption spectra nanomembrane are analogous to those layered iridate epitaxial single crystals. Remarkably, formation 3-unit-cell-thick SrIrO3 interfacial composite layers alleviates antiphase boundaries at Sr2IrO4/Sr3Al2O6 interface, resulting in structurally robust...
Atomic layer deposition (ALD) is uniquely capable of providing uniform thin-film coatings on powder substrates, but processing has historically required an ALD reactor designed specifically for powders—e.g., a fluidized bed. Tubular hot-walled viscous-flow reactors commonly employed in laboratory-scale research coating planar substrates such as silicon have been previously to coat gram quantities spread out thin tray, larger introduce long diffusion pathways where reactants are unable...
Abstract A kinetic Monte Carlo model of polyurethane polymerization which explicitly tracks the polymer sequences is developed and shared. This benchmarked against theoretical experimental data used to investigate effect on oligomer distributions unequal reactivity first second isocyanate react. The reverse reactions using thermodynamic consistency are then added framework, analogous addition concept ceiling temperature, equilibrium chain length at various temperatures calculated. For a...
The ability to grow conformal films with Ångstrom resolution makes atomic layer deposition (ALD) an attractive means of protecting and/or chemically functionalizing surfaces for catalysis, energy storage, photoelectrochemistry, and other applications. However, the performance ALD coatings frequently falls short expectations, largely because atomic-scale structure (and therefore chemical physical properties) deviate from idealized preconceptions. Single-crystal materials are only rarely...