Results 151 to 160 of about 347,004 (298)

Fracture behaviour of cast TiAl based intermetallic alloys

open access: yes, 2013
The γ -TiAl based intermetallic alloys have received considerable attention as candidate materials for high-temperature aerospace applications, power generation and automotive industry, with the efforts being directed toward the replacement of Ni-based ...
FELLI, Ferdinando   +2 more
core  

MXene‐Based Room‐Temperature NO2 Gas Sensors: A Meta‐Analysis

open access: yesAdvanced Science, EarlyView.
This study presents the first comprehensive meta‐analysis of MXene‐based NO2 sensors, decoding 32 study characteristics across 61 peer‐reviewed studies. By isolating materials chemistry as the primary performance driver over device‐level parameters, the authors establish a methodological blueprint and a predictive structure–function map to accelerate ...
Alexander Khort   +3 more
wiley   +1 more source

A Multifunctional Mesoporous Janus Separator With Optimized Mass Transport Regulation Enabling 800‐Cycle Lithium‐Oxygen Batteries

open access: yesAdvanced Science, EarlyView.
To resolve the fundamental cycling decay of lithium‐oxygen batteries arising from lithium dendrite propagation, anode corrosion, and cathode passivation, we fabricate a mesoporous silica/polyurethane Janus separator integrating interfacial protection and mass transport modulation, which markedly enhances battery cycling stability and cycle life ...
Hailiang Mu   +10 more
wiley   +1 more source

Ab Initio Thermoelectric Transport Calculations of Alloyed Half‐Heuslers

open access: yesAdvanced Science, EarlyView.
The effect of alloying on the electronic transport of half‐Heusler thermoelectric materials is explored using a fully ab initio approach. A novel method is developed that combines calculations of alloyed supercells with Boltzmann transport, considering the full energy and momentum dependent scattering processes from first principles extracted ...
Ankit Kumar   +2 more
wiley   +1 more source

Nickelferrite on Pnictogen Functionalized Carbon Nanohorns. Bifunctional ORR and OER Catalysts in Rechargeable Zinc‐Air Batteries

open access: yesAdvanced Science, EarlyView.
A systematic study on the performance of N,P‐doped NiFe2O4@CNH bi‐functional hybrid electrocatalysts for rechargeable zinc‐air batteries is presented. The importance of P, N‐doping and the intimate tethering of nickel‐ferrite nanocubes on the carbon nano‐horn (CNH) surface which are well dispersed on the surface of N,P doped CNHs.
Sudheer Kumar Yadav   +4 more
wiley   +1 more source

TiAl alloys for industrial use

open access: yesTiAl alloys for industrial use
Gamma titanium aluminide (γ-TiAl) intermetallic compounds are spotlighted as lightweight heat-resistant materials, and have been investigated extensively to aiming commercial use. Fundamental approaches in which phase diagrams of Ti-Al-Cr and TiAl-Nb have been studied based on the experimental data and calculations, have been performed in the national ...
openaire   +1 more source

A Conduction‐Nucleation‐Competition‐Guided 3D Adaptive Gradient Buffer for Dendrite‐Free All‐Solid‐State Lithium Metal Batteries

open access: yesAdvanced Science, EarlyView.
A self‐adaptive gradient SCMN buffer layer is designed based on a conduction‐nucleation competition mechanism. The design dynamically optimizes ion/electron conduction and lithiophilicity, guiding dendrite‐free lithium deposition. Consequently, symmetric cells deliver exceeding 1600h at 1.5 mA cm−2, and the LiCoO2‐based full cells exhibit 98.5 ...
Yaru Shi   +9 more
wiley   +1 more source

Solvent‐Free Synthesis of Ultrabright Carbon Dots With Near‐Unity Quantum Yield for High‐Performance Light‐Emitting Diodes

open access: yesAdvanced Science, EarlyView.
A rational, solvent‐free synthesis utilizing 2,6‐diaminonaphthalene produces ultrabright green‐emissive carbon dots. Regulated by a self‐limiting oxidative capping mechanism, excitons undergo ultrafast intra‐particle funneling from the nitrogen‐doped carbon core to emissive surface traps.
Hyeonjin Park   +8 more
wiley   +1 more source

Depth‐to‐Areal Staging Heterogeneity Preceding Lithium Plating in Graphite Anodes Revealed by Operando Imaging

open access: yesAdvanced Science, EarlyView.
Fast charging drives graphite anodes far from equilibrium, yet where lithium plating begins has remained hidden. Operando optical microscopy here reveals that neighboring regions advance through the staging sequence asynchronously, and that domains reaching advanced lithiation earliest become the preferential sites where plating initiates.
Tae Young Choi   +7 more
wiley   +1 more source

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