Results 151 to 160 of about 45,062 (259)

Estudio comparativo de las propiedades magnéticas de ferritas hexagonales de Bario obtenidas por los métodos de coprecipitación y microemulsión

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 1999
Using the chemical coprecipitation method a precursor formed by iron and barium hidroxides and carbonates was obtained. For calcination temperatures higher than 730ºC this precursor transforms into barium ferrite. Calcining the precursor during 2 hours a
García-Casillas, P. E.   +3 more
doaj  

Deformable Eutectic Alloy With Near‐Theoretical Yield Strength via Hierarchical Nanoscale Multiphases and Sessile Defects

open access: yesAdvanced Science, Volume 13, Issue 14, 9 March 2026.
A CoCrFeNiTa0.4 eutectic high‐entropy alloy achieves a near‐theoretical yield strength of 2.6 GPa with 13.6% plasticity. This breakthrough stems from a hierarchical nanostructure (FCC‐Laves lamellae with L12/D022 precipitates), which alleviates the inter‐phase modulus/hardness mismatch through synergistic strengthening and toughening, guiding the ...
Yusha Luo   +10 more
wiley   +1 more source

Mixed‐Oxide Nanostructure‐Based Electrochemical Sensors for Environmental Pollutants

open access: yesAnalysis &Sensing, Volume 6, Issue 2, March 2026.
This review discusses the development of mixed‐oxide electrochemical sensors for detecting environmental pollutants, covering various work electrodes, combinations of nanomaterials for enhanced sensing, and real‐world diagnostic applications. Emerging environmental pollutants pose increasing risks to ecosystems and human health, creating a demand for ...
Cavour M. Neto   +9 more
wiley   +1 more source

Layered Double Hydroxide@Carbon Composites in Lithium‐Sulfur Batteries: Synthesis Strategies, Shuttle Suppression Mechanisms, and Applications

open access: yesBattery Energy, Volume 5, Issue 2, March 2026.
Polysulfide shuttle suppression mechanisms in lithium‐sulfur batteries. ABSTRACT Lithium‐sulfur (Li‐S) batteries are promising candidates for next‐generation energy storage due to their high theoretical energy density, cost‐effectiveness, and environmental sustainability.
Mahider Asmare Tekalgne   +3 more
wiley   +1 more source

Engineering Ion Diffusion Pathways in rGO‐integrated Ni‐doped Co3O4 Composites for Efficient Energy Storage in Asymmetric Supercapacitors

open access: yesChemElectroChem, Volume 13, Issue 5, March 2026.
This work offers a thorough evaluation of ion transport properties, including ionic conductivity, transference number, rate constant, and diffusion coefficient, in a synergistically optimized Ni‐doped Co3O4‐based rGO‐integrated electrode series for supercapacitor technology, marking the first time this has been done.
Farhan Ahmad   +6 more
wiley   +1 more source

Challenges and Advancements in High‐Nickel Layered Oxides Cathode Material for Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 2, March 2026.
As a representative high‐energy‐density cathode material for lithium‐ion batteries, NCM811 still encounters critical challenges. This review provides a comprehensive analysis of its failure mechanisms, summarizes recent modification strategies, and highlights the contributions of advanced characterization and simulation techniques to performance ...
Yunshan Zheng   +10 more
wiley   +1 more source

Tunable Crystal Orientation and Particle Size Enable Stable Co‐Free LNMO Cathode

open access: yesEcoMat, Volume 8, Issue 3, March 2026.
The truncated octahedral LNMO with exposed (111)/(100) crystal planes, moderate particle size, and optimal Mn4+/Mn3+ has been achieved through tuning sol pH and gel calcination temperature via sol–gel method. The synergistic effects of these characteristics promote superior stability and fast ionic diffusion capability of LNMO. These findings highlight
Jiguo Tu   +4 more
wiley   +1 more source

Oxygen Vacancy Engineering of Ultrafine ZnAl2O4 Nanoparticles as a Robust Protective Layer for Dendrite‐Free and Long‐Lifespan Aqueous Zn Metal Anodes

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Aqueous zinc‐ion batteries (AZIBs) hold great promise for safe and sustainable energy storage, but their commercialization is impeded by severe Zn dendrite growth and interfacial instability. To address these challenges, we propose a defect engineering strategy employing ultrafine ZnAl2O4 (ZAO) nanoparticles (∼5 nm) with oxygen vacancy defects
Yilun Ren   +9 more
wiley   +1 more source

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