Results 51 to 60 of about 105,088 (326)
Ion-Exchange Reaction Of A-Site In A2Ta2O6 Pyrochlore Crystal Structure
Archives of Metallurgy and Materials, 2015 Na+ or K+ ion rechargeable battery is started to garner attention recently in Place of Li+ ion cell. It is important that A+ site ion can move in and out the positive-electrode materials.
Matsunami M., Hashizume T., Saiki A.
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Hydrothermal synthesis of perovskite and pyrochlore powders of potassium tantalate [PDF]
, 2002 Potassium tantalate powders were hydrothermally synthesized at 100 to 200 °C in 4 to 15 M aqueous KOH solutions. A defect pyrochlore, Kta_(2)O_(5)(OH). nH2O (n ≈ 1.4), was obtained at 4 M KOH, but at 7–12 M KOH, this pyrochlore was gradually replaced by ...
Goh, Gregory K. L. +3 more
core
Effect of ionic radii on the Curie temperature in Ba1-x-ySrxCayTiO3 compounds [PDF]
, 2016 A series of Ba1-x-ySrxCayTiO3 compounds were prepared with varying average ionic radii and cation disorder on A-site. All samples showed typical ferroelectric behavior.
Alford, N, Berenov, AV, Le Goupil, F
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Functional Perovskites: Structure-Properties Correlations
OAJ Materials and Devices, 2021 The perovskite structure with general formula ABX3 shows its multidimensional nature in regards to correlations of crystal structures with electronic, magnetic, optical, and catalytic properties. Perovskites are utilized in a large range of applications due to their tremendous versatility.
A.K. Bera, S.M. Yusuf
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Advanced Functional Materials, EarlyView.This study uncovers a new switching mechanism in HfO2 and ZrO2, where the absence of a non‐polar layer along the a‐direction induces interaction between polar layers. Consequently, the switching barriers for growth are lower than those for nucleation in this direction, leading to a size‐dependent coercive field that matches experimental observations ...
Kun Hee Ye +6 more
wiley +1 more source
Fabrication and Characterization of Reaction-Resistant LaYO3 Material for the Melting Crucible of Metal Fuels [PDF]
Archives of Metallurgy and MaterialsLaYO3 which has phase stability at high temperature is introduced as a promising candidate for reaction-preventing crucible materials with Uranium-Zirconium (U-Zr) melt containing rare-earth elements (RE). RE is composed of rare-earth elements such as Nd,
Ki-Hwan Ki +4 more
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Structure of planar defects in tilted perovskites [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 2011 20 pages, 4 ...
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Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +1 more source
Full‐Color n‐i‐p Perovskite Light‐Emitting Diodes Based on SnO2
Advanced Electronic MaterialsPerovskite light‐emitting diodes (LEDs) have achieved their highest efficiency with an n‐i‐p device structure, utilizing n‐type ZnO as the electron transport layer. The exceptional device efficiency is highly dependent on the interfacial reaction between
Jianhong Wu +10 more
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Rare case of magnetic Ag$^{3+}$ ion: double perovskite Cs$_{2}$KAgF$_{6}$
, 2014 Normally $4d$ or $5d$ transition metals are in a low-spin state. Here using first-principles calculations, we report on a rare case of a high-spin $S$=1 magnetic state for the Ag$^{3+}$ ion in the double perovskite Cs$_{2}$KAgF$_{6}$.
Fan, Fengren +7 more
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