Results 41 to 50 of about 16,836 (297)

Squeezing electrons out of 6s2 lone-pairs in perovskite-type oxides [PDF]

open access: yes, 2019
Having identified a set of conditions that predispose a solid-state ionic compound to a pressure-induced valence transition, we investigated a series of Bi(III) perovskite oxides.
Kennedy, Brendan J   +9 more
core   +1 more source

Lanthanum based high surface area perovskite-type oxide and application in CO and propane combustion

open access: yesEclética Química, 2018
The perovskite-type oxides using transition metals present a promising potential as catalysts in total oxidation reaction. The present work investigates the effect of synthesis by oxidant co-precipitation on the catalytic activity of perovskite-type ...
Paulo Roberto Nagipe da Silva   +1 more
doaj   +1 more source

Proper Ferroelectricity in the Dion?Jacobson Material CsBi2Ti2NbO10: Experiment and Theory [PDF]

open access: yes, 2015
A diverse range of materials and properties are exhibited by layered perovskites. We report on the synthesis, characterization, and computational investigation of a new ferroelectric?CsBi2Ti2NbO10, an n = 3 member of the Dion?Jacobson (DJ) family ...
Hyatt NC   +23 more
core   +1 more source

Structural, electrochemical and magnetic characterization of the layered-type PrBa0.5Sr0.5Co2O5+δ perovskite

open access: yes, 2014
Structural, electrical and magnetic properties of the layered cobaltite PrBa0.5Sr0.5Co2O5+δ have been investigated by means of neutron diffraction, electron diffraction, thermogravimetric analysis and SQUID magnetometry.
Irvine, John T.S.   +8 more
core   +1 more source

Synthesis, Sintering, and Electrical Properties of BaCe0.9−xZrxY0.1O3−δ [PDF]

open access: yes, 2008
BaCe0.9−xZrxY0.1O3−δ powders were synthesized by a solid-state reaction. Different contents of cerium and zirconium were studied. Pellets were sintered using either conventional sintering in air at 1700◦C or the Spark Plasma Sintering (SPS) technique ...
Caboche, Gilles   +6 more
core   +1 more source

High-entropy perovskite ceramics: Advances in structure and properties [PDF]

open access: yesProcessing and Application of Ceramics
High-entropy ceramic materials usually refer to the multi-principal solid solution formed by 5 or more ceramic components. Due to its novel “high-entropy effect” and excellent performance, it has become one of the research hotspots in the field of ...
Ding Yiwen   +10 more
doaj   +1 more source

Electronic spin state of ferric iron in Al-bearing perovskite in the lower mantle

open access: yes, 2005
We investigate the effect of pressure on the electronic spin state of ferric iron on Al-bearing MgSiO3-perovskite using first-principle computations. Ferric iron (6.25 mol%) and Al ( 6.25 mol%) substitute for Mg and Si respectively.
Price, GD   +11 more
core   +1 more source

Oxidative Passivation of Metal Halide Perovskites [PDF]

open access: yesJoule, 2019
Summary Metal halide perovskites have demonstrated extraordinary potential as materials for next-generation optoelectronics including photovoltaics and light-emitting diodes. Nevertheless, our understanding of this material is still far from complete.
Godding, J   +5 more
openaire   +2 more sources

Aerosol spray synthesis of powder perovskite-type oxides

open access: yes, 2016
The physicochemical properties and the performance of perovskite‐type oxides are highly dependent on the applied preparation method and correlated synthesis conditions.
Ferri, Davide   +2 more
core   +1 more source

Analysis of perovskite oxide etching using argon inductively coupled plasmas for photonics applications

open access: yesNanoscale Research Letters, 2021
We analyzed the dry etching of perovskite oxides using argon-based inductively coupled plasmas (ICP) for photonics applications. Various chamber conditions and their effects on etching rates have been demonstrated based on Z-cut lithium niobate (LN). The
Guanyu Chen   +4 more
doaj   +1 more source

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