Results 61 to 70 of about 159,205 (268)

Coexistence of tetrahedral and octahedral-like sites in amorphous phase change materials

, 2007
Chalcogenide alloys are materials of interest for optical recording and non-volatile memories. We perform ab-initio molecular dynamics simulations aiming at shading light onto the structure of amorphous Ge2Sb2Te5 (GST), the prototypical material in this ...
Bernasconi, M., Caravati, S., Krack, M., Kuehne, T. D., Parrinello, M.   +4 more
core   +1 more source

Emergence of Light‐Transforming Layered Hybrid Halide Perovskites

Advanced Functional Materials, EarlyView.
The emerging class of light‐transforming layered halide perovskite materials is reviewed, outlining challenges for their development and perspectives toward application in the future. Abstract Layered hybrid halide perovskites (LHPs) have attracted considerable attention in optoelectronics.
Ghewa AlSabeh, Jovana V. Milić
wiley   +1 more source

Octahedral rotations in strained LaAlO3/SrTiO3 (001) heterostructures

APL Materials, 2014
Many complex oxides display an array of structural instabilities often tied to altered electronic behavior. For oxide heterostructures, several different interfacial effects can dramatically change the nature of these instabilities.
T. T. Fister, H. Zhou, Z. Luo, S. S. A. Seo, S. O. Hruszkewycz, D. L. Proffit, J. A. Eastman, P. H. Fuoss, P. M. Baldo, H. N. Lee, D. D. Fong   +10 more
doaj   +1 more source

Octahedral oxide glass network in ambient pressure neodymium titanate

Scientific Reports, 2022
Rare-earth titanates form very fragile liquids that can be made into glasses with useful optical properties. We investigate the atomic structure of 83TiO2-17Nd2O3 glass using pair distribution function (PDF) analysis of X-ray and neutron diffraction with
Stephen K. Wilke, Oliver L. G. Alderman, Chris J. Benmore, Jörg Neuefeind, Richard Weber   +4 more
doaj   +1 more source

Interface magnetism and electronic structure: ZnO(0001)/Co3O4(111)

, 2018
We have studied the structural, electronic and magnetic properties of spinel $\rm Co_3O_4$(111) surfaces and their interfaces with ZnO (0001) using density functional theory (DFT) within the Generalized Gradient Approximation with on-site Coulomb ...
Hayn, Roland, Kupchak, Igor, Serpak, Natalia, Shkrebtii, Anatoli   +3 more
core   +1 more source

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Octahedral Oxo-Bridged Tri-Nickel(II) Complex with 1,3,5-Tris(2-hydroxyphenyl)-2,4-diazapenta-1,3-diene

Molbank
An octahedral nickel(II) complex of 1,3,5-tris(2-hydroxyphenyl)-2,4-diazapenta-1,3-diene was obtained and characterized by X-ray crystallography. The organic ligand was obtained by the reaction of 2-hydroxybenzaldehyde with aqueous ammonia solution.
Daniil R. Bazanov, Egor D. Korolyov, Konstantin A. Lyssenko, Natalia A. Lozinskaya   +3 more
doaj   +1 more source

Monitoring Galvanic Replacement Through Three-Dimensional Morphological and Chemical Mapping

, 2014
Galvanic replacement reactions on metal nanoparticles are often used for the preparation of hollow nanostructures with tunable porosity and chemical composition, leading to tailored optical and catalytic properties. However, the precise interplay between
Bals, Sara, Goris, Bart, Liz-Marzán, Luis M., Polavarapu, Lakshminarayana, Van Tendeloo, Gustaaf   +4 more
core   +1 more source

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

Advanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya, Baliana Shani, Isaac Holmes‐Gentle, Gerardo T Martinez, Martyn McLachlan, Nicola Seriani, Ludmilla Steier   +6 more
wiley   +1 more source

CPE بطريقة استخلاص نقطة الغيمة (VI) تحضير وتشخيص الفورمازان ومعقداته وأستخدامه في أستخلاص ايون الكروم

مجلة علوم ذي قار, 2019
       تم تحضير الفورمازان (2Z)-1-benzoyl-3-(2-hydroxyphenyl)-5-phenylformazan من ازدواج املاح الدايازونيوم مع قاعدة شف (E)-N′-(2-hydroxybenzylidene)benzohydrazide وتم تحضير معقدات الفورمازان من التفاعل المباشر للاملاح الفلزية معة, وشخص ...
ساهر عبد الرضا علي, بتول مهدي صالح   +1 more
doaj