Results 21 to 30 of about 97 (97)

Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics

open access: yesAdvanced Science, EarlyView.
This study demonstrates the effectiveness of Ti3C2Tx MXenes as additives in ultra‐high‐temperature ceramics (ZrB₂), enhancing densification, reducing oxygen content, and improving mechanical properties. Through surfactant‐free electrostatic self‐assembly and spark plasma sintering, MXenes enabled the formation of a core–shell microstructure, resulting ...
Srinivasa Kartik Nemani   +11 more
wiley   +1 more source

Superior Capacitive Energy Storage of BaTiO3‐Based Polymorphic Relaxor Ferroelectrics Engineered by Mesoscopically Chemical Homogeneity

open access: yesAdvanced Science, EarlyView.
BaTiO3‐based polymorphic relaxor ferroelectrics are engineered by mesoscopically chemical homogeneity, constructing diversified nanodomain architectures with similar multiple local symmetries but different nanodomain scales in diverse grains. Ex‐/In situ multiscale structure analysis indicates that a relatively continuous polarization switching with ...
Aiwen Xie   +10 more
wiley   +1 more source

Effect of Propagating Dopant Reactivity on Lattice Oxygen Loss in LLZO Solid Electrolyte Contacted with Lithium Metal

open access: yesAdvanced Energy Materials, EarlyView.
The decomposition of Nb‐substituted LLZO solid electrolytes is reported through a propagating reaction between Nb5+ dopants and the Li metal electrode. This work suggests dopants that segregate to interfaces/grain boundaries in LLZO will exhibit reactivity that can propagate into bulk and shed light on new mechanisms for the problematic role of oxygen ...
Michael J. Counihan   +17 more
wiley   +1 more source

Template‐Assisted Growth of CsxFA1‐xPbI3 with Pulsed Laser Deposition for Single Junction Perovskite Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
Template‐assisted pulsed laser deposition (PLD) enables the growth of phase‐pure α‐CsxFA1‐xPbI3 perovskite films. Stoichiometric transfer and uniform coverage on planar and textured substrates is demonstrated, delivering reproducible single‐junction perovskite solar cells.
Suzana Kralj   +9 more
wiley   +1 more source

Strategies for Reducing Operating Voltage of Ferroelectric Hafnia by Decreasing Coercive Field and Film Thickness

open access: yesAdvanced Physics Research, EarlyView.
This review highlights advancements in HfO2‐based ferroelectric memory, focusing on strategies to reduce coercive field (Ec) and film thickness for low voltage operation. Techniques include doping, phase engineering, and domain wall motion optimization, with sub‐5 nm scaling showing robust ferroelectricity.
Dong In Han   +8 more
wiley   +1 more source

Impact of Microstructural Properties on Ionic and Heat Transport in NaSICON Glass Ceramics

open access: yesBatteries &Supercaps, EarlyView.
With glass ceramics made from NaSICON materials, everything is about microstructure and glass phase content. Their influence is investigated with regard to the transport properties, both for ionic and thermal conductivity. Small, nm‐sized tubular porosity is regarded as the transport path of Na2O depletion during sintering and as an additional ...
Frank Tietz   +10 more
wiley   +1 more source

In Situ Coating Li3PO4 on Li6.5La3Zr1.5Ta0.5O12 Achieving Lithium Dendrites Inhibition and High Chemical Stability

open access: yesBattery Energy, EarlyView.
Lithium dendrite causes short‐circuit quickly in liquid lithium metal batteries using a normal separator. By in situ coating Li3PO4 on Li6.5La3Zr1.5Ta0.5O12 (LLZTO), we neutralize the residual alkali on LLZTOsurface, making it feasible to prepare a slurry with PVDF to further coating the separator.
Jun Ma   +10 more
wiley   +1 more source

Size, Shape, and Composition Control of Metallic Colloidal Nanoparticles for the Design of Heterogeneous Catalysts

open access: yesChemCatChem, EarlyView.
The size, shape, and composition of metal nanoparticles are key factors in heterogeneous catalysis, as they influence catalytic activity and selectivity in various chemical processes. Therefore, designing catalysts with well‐defined structures is crucial for conducting systematic structure‐performance studies and gaining deeper insights into catalytic ...
Esteban Gioria   +3 more
wiley   +1 more source

Strategic Design of “Three‐in‐One” Cathode Toward Optimal Performance of Proton‐Conducting Solid Oxide Fuel Cell: The Temperature Matters

open access: yesCarbon Energy, EarlyView.
Co enhances the ORR activity while Fe facilitates the cathode/electrolyte interfacial proton conduction. Below 650°C, the H‐SOFC performance is limited by ORR activity so that a high Co/Fe ratio is suggested, whereas above 650°C, a low Co/Fe ratio is favored as the limiting factor shifts to proton conduction.
Min‐Rui Gao   +5 more
wiley   +1 more source

Recent Developments and Prospects on Functional Graphene‐Based Nanocomposites as Potential Sulfur Hosts for Next‐Generation Lithium‐Sulfur Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This article comprehensively summarizes the potential applications of pure graphene, heteroatom‐modified graphene, and graphene‐based nanocomposite frameworks as potential hosts for sulfur to develop promising cathode materials for next‐generation LiSBs. Lithium‐sulfur batteries have been developing in recent years and appear to offer an alternative to
Mohan Raj Krishnan   +2 more
wiley   +1 more source

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