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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Observation of Electric-Field-Induced Structural Dislocations in a Ferroelectric Oxide
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Importance of Electric-Field-Independent Mobilities in Thick-Film Organic Solar Cells
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Electric Field Effects in Hybrid Perovskites Studied via Picosecond Kerr Microscopy
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Synergistic Effects of the Electric Field Induced by Imidazolium Rotation and Hydrogen Bonding in Electrocatalysis of CO 2
The roles of the ionic liquid, 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF₄]), and water in controlling the mechanism, energetics, and electrocatalytic activity of CO₂ reduction to CO on silver in non-aqueous electrolytes were investigated. The first electron transfer occurs to CO₂ at reduced overpotentials when it is trapped between the planes of [EMIM]⁺ ring and electrode surface due to cation re-orientation as determined from voltammetry, in-situ surface-enhanced Raman spectroscopy, and density functional theory calculations. Within this interface, water up to 0.5 M does not induce significant faradaic activity, opposing the notion of it as a free proton source. Instead, water acts as a hydrogen bond donor and the proton is sourced from [EMIM]⁺. Furthermore, this study demonstrates that alcohols with varying acidity tune the hydrogen bonding network in the interfacial microenvironment to lower the energetics required for CO₂ reduction. Here, the hydrogen bonding suppresses the formation of inactive carboxylate species, thus preserving the catalytic activity of [EMIM]⁺. The ability to tune the hydrogen bonding network opens new avenues for advancing IL-mediated electrocatalytic reactions in non-aqueous electrolytes.
A Study on the Role of Electric Field in Low-Temperature Plasma Catalytic Ammonia Synthesis via Integrated Density Functional Theory and Microkinetic Modeling
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Characterization of Mobility-Dependent Ion Confinement in Rotating Electric Fields
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Asymmetric response of interfacial water to applied electric fields
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Structural evolution of a high-temperature piezoelectric Pb(In 1/2 Nb 1/2 )O 3 –PbTiO 3 ceramic under an in situ electric field
The PIN–0.36PT relaxor ferroelectric at the MPB exhibits reversible phase transformation and relatively flexible M structure, which enable large lattice strain and domain switching, and are responsible for the enhanced piezoelectric properties.