A5070128717- Electronic and Structural Properties of Oxides
- Magnetic and transport properties of perovskites and related materials
- Machine Learning in Materials Science
- Neuroscience and Neural Engineering
- Semiconductor materials and devices
- Ferroelectric and Negative Capacitance Devices
- Catalytic Processes in Materials Science
- Advanced Memory and Neural Computing
- Advancements in Solid Oxide Fuel Cells
- Catalysis and Oxidation Reactions
- Asymmetric Hydrogenation and Catalysis
- Catalysis and Hydrodesulfurization Studies
- Ferroelectric and Piezoelectric Materials
Massachusetts Institute of Technology
2020-2024
California Institute of Technology
2017
Cermet catalysts formed via exsolution of metal nanoparticles from perovskites promise to perform better in electro- and thermochemical applications than those synthesized by conventional wet-chemical approaches. However, a shortage robust material design principles still stands the way widespread commercial adoption exsolution. Working with Ni-doped SrTiO3 solid solutions, we investigated how introduction Sr deficiency as well Ca, Ba, La doping on site changed size surface density exsolved...
Memristive devices are among the most prominent candidates for future computer memory storage and neuromorphic computing. Though promising, major hurdle their industrial fabrication is device-to-device cycle-to-cycle variability. These occur due to random nature of nanoionic conductive filaments, whose rupture formation govern device operation. Changes in filament location, shape, chemical composition cause This challenge tackled by spatially confining filaments with Ni nanoparticles....
Influence of reducing conditions on exsolution nanoparticles from Sr 0.8 La 0.1 Ca Ti 0.94 Ni 0.06 O 3− δ are established, trends explained by combining LaMer nucleation theory and DFT calculations.
Industrial production of maleic anhydride (MA) from n-butane relies on the vanadyl pyrophosphate (VPO) catalyst. Improving VPO's selectivity and activity could have enormous economic environmental impact, but efforts been impeded by uncertainties regarding active phases atomistic mechanism VPO We report here a plausible 15-step taking to MA with energetics computed using hybrid density functional theory calculations periodic models surface layers. find that P═O group X1 phase is solely...
The successful design of solid-state photo- and electrochemical devices depends on the careful engineering point defects in ion conductors. Characterization is critical to these efforts, but best-developed techniques are difficult time-consuming. Raman spectroscopy─with its exceptional speed, flexibility, accessibility─is a promising alternative. signatures arise from due local symmetry breaking structural distortions. Unfortunately, assignment often hampered by shortage reference compounds...