Results 101 to 110 of about 41,652 (172)

Synthesis, Structure, and Eu3+‐Activated Photoluminescence of the Mixed‐Anion Carbodiimide NaLa2F3(CN2)2

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 4, 17 March 2026.
NaLa2F3(CN2)2 forms via solid‐state metathesis of LaF3 and Na2(CN2) at 550°C and remains stable under ambient air and humidity. The structure is based on [La(NCN)5F4] polyhedra with interstitial Na+; revealing an unconventional red emission when doped with Eu3+.
Albert T. Schwarz   +4 more
wiley   +1 more source

Quantitative Analysis of Ferrate(VI) and Its Degradation Products in Electrochemically Produced Potassium Ferrate for Waste Water Treatment

open access: yesApplied Sciences
Potassium ferrate(VI) (K2FeO4) as a particularly strong oxidant represents an effective and environmentally friendly waste water treatment material. When produced by anodic oxidation in highly alkaline aqueous solution, the K2FeO4 product is separated ...
Zoltán Homonnay   +9 more
doaj   +1 more source

Redox‐Mediated Electrochemical Regeneration of Spent LiFePO4 Battery Cathodes

open access: yesAngewandte Chemie, Volume 138, Issue 12, 16 March 2026.
This work demonstrates a redox‐mediated electrochemical method for direct recycling of spent LiFePO4 battery cathodes. A water‐soluble mediator, iron propylenediamine tetraacetate (Fe‐PDTA), transports electrons into an off‐electrode reservoir where it drives compositional and structural repair of degraded LiFePO4.
Deok‐Ho Roh   +5 more
wiley   +1 more source

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

open access: yesAdvanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange   +11 more
wiley   +1 more source

Enhanced Nitric Oxide Electroreduction to Ammonia via Modulating Spin‐Polarization of Fe Single‐Atom Catalysts

open access: yesAdvanced Functional Materials, Volume 36, Issue 24, 23 March 2026.
A strategic spin‐polarization suppression in Fe single‐atom catalysts is proposed to enhance electrocatalytic reduction of NO to NH3. Employing a top‐down electrospinning strategy, self‐supported FeSAC with Fe‐N3S1 coordination structure and spin‐state transition is engineered from high‐spin to low‐spin.
Jialing Song   +13 more
wiley   +1 more source

O2‐Accessible Fe–N4 Active Site Density Boosts Efficient Oxygen Reduction to Fuel‐Cell Level

open access: yesAdvanced Materials, Volume 38, Issue 16, 17 March 2026.
This study investigates the role of hierarchical nanostructure design in optimizing oxygen mass transport for the oxygen reduction. Using atomically dispersed Fe–N–C catalysts with solid, yolk‐shell, and hollow structures, it demonstrates that the yolk‐shell architecture provides superior O2 accessibility to active Fe–N4 sites.
Tianyu Zhang   +7 more
wiley   +1 more source

Stability of Lead‐Free Perovskite Solar Cells

open access: yesAdvanced Sustainable Systems, Volume 10, Issue 3, March 2026.
This review article discusses the very recent status of stability of lead‐free perovskite solar cells, possible challenges, fabrication techniques, the degradation mechanism of lead‐free PSCs affecting stability, possible causes hindering the simultaneous improvement of efficiency and stability of lead‐free PSCs, potential outlook, and future research ...
Pranta Barua   +4 more
wiley   +1 more source

Mixed Conversion‐Alloying Chemistry of Sn4P3 Anodes in Alkali‐Ion Batteries: Mechanistic Insights, Challenges, and Mitigation Strategies

open access: yesChemistryEurope, Volume 4, Issue 3, March 2026.
Sn4P3 offers high capacity via mixed conversion‐alloying chemistry in Li/Na/K systems but suffers from irreversible capacity loss, volume change, low initial cycle Coulombic efficiency, and interphase instability. This concept article evaluates the recent advances and charts routes to durable, practical Sn4P3 electrodes.
Anupriya K. Haridas, Milan K. Sadan
wiley   +1 more source

Fe-%18,79Mn-%4,53Ni Alaşımında Termal Etki ile Oluşan Martensitik Faz Dönüşümlerinin Fiziksel Özelliklerinin İncelenmesi

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2016
Özet: Bu çalışmada, Fe-%18,79Mn-%4,53Ni alaşımında termal etki ile oluşturulan martensitik faz dönüşümlerinin kristalografik ve manyetik özellikleri araştırıldı. Taramalı Elektron Mikroskobu (SEM) ile termal etkili martensitelerin mikroyapıları incelendi.
Nermin KAHVECİ YAĞCI, Dilek TÜRK
doaj  

Iron Oxide Synthesized with the Assistance of Açaí Berry Extract as Electrocatalysts for Water Splitting

open access: yesChemistrySelect, Volume 11, Issue 9, 5 March 2026.
ABSTRACT Green hydrogen is a sustainable and clean fuel that has the potential to significantly transform the global energy landscape, while also contributing to reduce the greenhouse gas emissions and mitigate the climate changes. Water electrolysis is an efficient method for the production of green hydrogen, in which water is split into oxygen and ...
Ana Paula Nazar de Souza   +5 more
wiley   +1 more source

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