Results 91 to 100 of about 120,946 (348)

Síntese de ZnAl2O4: Yb:Er por reação de combustão Synthesis of ZnAl2O4: Yb:Er by combustion reaction

open access: yesCerâmica, 2006
Aluminato de zinco dopado com os íons terras raras itérbio e érbio nas proporções 2:1, 3:1, 4:1, e 5:1 mol de Yb:Er foi sintetizado por reação de combustão.
J. F. Silva   +5 more
doaj   +1 more source

Self‐Regulating Sodium‐Ion Battery Materials: From Phase Reconstruction to Functional Activation

open access: yesAdvanced Materials, EarlyView.
Self‐regulating sodium‐ion batteries hinge on programmable phase behavior in layered oxides, interphases that renew without growth, and electrolytes that steer solvation and chemistry. This review distills mechanisms into design rules that span composition, site and entropy tuning, and self‐buffering anodes, linking operando evidence to choices and ...
Hong Gao   +10 more
wiley   +1 more source

Síntese e caracterização de espinélios à base de ferritas com gelatina como agente direcionador Synthesis and characterization of ferrite-base spinels with gelatin as directing agent

open access: yesCerâmica, 2011
As ferritas com estrutura tipo espinélio compreendem um grupo de materiais magnéticos muito bem estabelecidos. Contudo, melhoramentos e inovações continuam acontecendo visando novas aplicações e otimização das técnicas de preparação.
A. F. Costa   +4 more
doaj   +1 more source

Strain-Induced Magnetic Anisotropy in Epitaxial Thin Films of the Spinel CoCr$_2$O$_4$ [PDF]

open access: yes, 2015
We show that the magnetic anisotropy in spinel-structure CoCr$_2$O$_4$ thin films exhibits a strain dependence in which compressive strain induces an out-of-plane magnetic easy axis and tensile strain an in-plane easy axis, exactly opposite to the ...
Blickenstorfer, Yves   +6 more
core   +2 more sources

Oxygen Evolution Reaction Catalysts for Acidic‐Media CO2 Electrolyzers

open access: yesAdvanced Materials, EarlyView.
Acidic‐media CO2 electroreduction (CO2R) could decarbonize chemical production, despite relying on rare‐earth elements for anodic oxygen evolution reaction (OER). Transferring the learnings from mature sister technologies (water electrolysis) could accelerate technological development.
Mingcheng Huang, Adnan Ozden
wiley   +1 more source

Synthesis of nickel zinc iron nanoparticles by coprecipitation technique

open access: yesMaterials Research, 2010
Nanoparticles nickel ferrite of size 6 - 8 nm, synthesized by the coprecipitation method with x varying from 0 to 1.0. The powder samples were characterized by XRD, VSM and FTIR.
Kandasamy Velmurugan   +2 more
doaj   +1 more source

First Principles Modeling of the Initial Stages of Organic Solvent Decomposition on Li(x)Mn(2)O(4) (100) Surfaces

open access: yes, 2012
Density functional theory and ab initio molecular dynamics simulations are applied to investigate the initial steps of ethylene carbonate (EC) decomposition on spinel Li(0.6)Mn(2)O(4) (100) surfaces.
Leung, Kevin
core   +1 more source

On the asymptotic giant branch star origin of peculiar spinel grain OC2 [PDF]

open access: yes, 2006
Microscopic presolar grains extracted from primitive meteorites have extremely anomalous isotopic compositions revealing the stellar origin of these grains.
A. I. Karakas   +67 more
core   +3 more sources

All‐Solid‐State Batteries With Mechanically Stable Interfaces Consisting of a Zero‐Strain Cation‐Disordered Rocksalt Cathode

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT Interface stabilization is critical to the development of working all‐solid‐state batteries. Rigid cathode/solid electrolyte interfaces often disintegrate due to anisotropic volume change of cathode‐active materials, resulting in irreversible capacity loss.
Junteng Du   +3 more
wiley   +1 more source

Endoneural fibroblasts isolation and culture

open access: yesActa Biológica Colombiana, 2004
Fibroblasts which are tissue-specific, constantly degrade and synthesize the different elements of the extra-cellular matrix (ECM), while at the same time remodel tissues that are being repaired.
Leslie Leal   +2 more
doaj  

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