SEARCH · Engineering Papers
Results for “Pb”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Exchange of Adsorbed Pb(II) at the Rutile Surface: Rates and Mechanisms
Explore the source record for details and available documents.
Successful Conversion of Pb-Contaminated Soils to Low-Bioaccessibility Plumbojarosite Using Potassiu
Explore the source record for details and available documents.
Dynamic Inhibition of Calcite Dissolution in Flowing Acidic Pb 2+ Solutions
Not Available
In 4 Pb 5.5 Sb 5 S 19 : A Stable Quaternary Chalcogenide with Low Thermal Conductivity
Not provided.
Identifying and Passivating Killer Defects in Pb-Free Double Cs 2 AgBiBr 6 Perovskite
Not provided.
Mechanistic Study of Pb(II) Removal by TiO2 and Effect of PO4
Explore the source record for details and available documents.
High Thermoelectric Performance of AgSb 1– x Pb x Se 2 Prepared by Fast Nonequilibrium Synthesis
Not provided.
Superior Capacitive Energy-Storage Performance in Pb-Free Relaxors with a Simple Chemical Composition
Chemical design of lead-free relaxors with simultaneously high energy density (W rec ) and high efficiency (η) for capacitive energy-storage has been a big challenge for advanced electronic systems. The current situation indicates that realizing such superior energy-storage properties requires highly complex chemical components. Herein, we demonstrate that, via local structure design, an ultrahigh W rec of 10.1 J/cm 3 , concurrent with a high η of 90%, as well as excellent thermal and frequency stabilities can be achieved in a relaxor with a very simple chemical composition. By introducing 6s 2 lone pair stereochemical active Bi into the classical BaTiO 3 ferroelectric to generate a mismatch between A- and B-site polar displacements, a relaxor state with strong local polar fluctuations can be formed. Through advanced atomic-resolution displacement mapping and 3D reconstructing the nanoscale structure from neutron/X-ray total scattering, it is revealed that the localized Bi enhances the polar length largely at several perovskite unit cells and disrupts the long-range coherent Ti polar displacements, resulting in a slush-like structure with extremely small size polar clusters and strong local polar fluctuations. This favorable relaxor state exhibits substantially enhanced polarization, and minimized hysteresis at a high breakdown strength. This work offers a feasible avenue to chemically design new relaxors with a simple composition for high-performance capacitive energy-storage.
Two-Dimensional Halide Pb-Perovskite–Double Perovskite Epitaxial Heterostructures
Not provided.
Graphene Oxide as a Pb(II) Separation Medium: Has Part of the Story Been Overlooked?
Not Available