Results 171 to 180 of about 34,772 (314)

Mitigating the Rock‐Salt Phase Transformation in Disordered LNMO Through Synergetic Solid‐State AlF3/LiF Modifications

open access: yesAdvanced Science, EarlyView.
The transition between the spinel and rock‐salt phases induces irreversible structural changes in disordered LiNi0.5Mn1.5O4, thereby preventing it from fully releasing its electrochemical capacity during charge/discharge cycling. Abstract High‐voltage disordered spinel LiNi0.5Mn1.5O4 is a promising cathode material for high power density in lithium‐ion
Xingqi Chang   +9 more
wiley   +1 more source

A Sub‐1 Nm Cluster Chains‐enhanced Poly(ethylene oxide) Electrolyte for an All‐solid‐State Lithium Metal Battery with a Long Cycling Lifespan

open access: yesAdvanced Science, EarlyView.
Sub‐1 nm inorganic cluster chain with cation vacancies optimize PEO electrolytes by eliminating Li+ migration barriers and constructing 3D ion transport networks, while in situ c‐AFM reveals dynamic transport mechanisms, enabling high‐performance all‐solid‐state batteries. Abstract Flexible composite polymer electrolytes (CPEs) are promising candidates
Shanshan Song   +8 more
wiley   +1 more source

Cation Substitution in High‐Entropy Layered Double Hydroxide Driving D‐Band Center Tuning for Oxygen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
The d‐band center position of layered double hydroxide is adjusted via multication insertion in the octahedral site. The optimal position of the d‐band, near the Fermi level, enhances OER performance through optimal OH− adsorption kinetics, resulting in a 55% reduction in overpotential compared to the native catalyst.
Pinnan Li   +4 more
wiley   +1 more source

Thermodynamically Reinforced Dual‐Interface 1D/3D Tin‐Lead Perovskite Heterostructure for Stable All‐Perovskite Tandem Solar Cells

open access: yesAdvanced Science, EarlyView.
A π‐conjugated diammonium additive is employed to engineer a dual‐interface 1D/3D perovskite heterostructure. π‐π stacking 1D perovskitoids act as nucleation templates to relieve tensile strain and intra‐/intergranular disorder and then encapsulate the 3D bulk to fortify the Sn‐I octahedral framework. The all‐perovskite tandem devices based 1D/3D Sn‐Pb
Hui Li   +4 more
wiley   +1 more source

Tuning optical and dielectric properties of strontium-zinc ferrite nanomaterials through structure-cation engineering. [PDF]

open access: yesSci Rep
Satti OT   +8 more
europepmc   +1 more source

Copper speciation in organic wastes : an X-ray absorption spectroscopy study [PDF]

open access: yes, 2011
Bravin, Matthieu   +2 more
core  

Hidden Charge‐Order in the Mixed‐Valent K0.75Li2Cr6O12 High‐Pressure Oxide

open access: yesAdvanced Science, EarlyView.
K0.75Li2Cr6O12 is one of the few mixed valent chromium oxides. It shows a single angle spiral magnetic structure with a k = [1/3 1/3 ¼] propagation vector. Density functional theory reveals a hidden charge order that is necessary to stabilize the antiferromagnetic (AFM) ground state.
Angel M. Arévalo‐López   +3 more
wiley   +1 more source

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