Results 161 to 170 of about 7,577 (284)

Non-isothermal crystallization kinetics of Sb10Ge10Se80 chalcogenide glass

open access: yesFizika A : a journal of experimental and theoretical physics, 2006
A differential scanning calorimetry technique was used to study the crystallization kinetics of Sb10Ge10Se80 chalcogenide glass under non-isothermal conditions. The crystallization parameters such as the order parameter (n), the frequency factor (k0), the activation energy of crystallization (Ec), the activation energy of glass transition (Eg) and the ...
Hashem, H. A., Abouelhassan, S.
openaire   +1 more source

Interfacial Charge‐Transfer Enhancement via High‐Entropy Alloy Regulated MXene Heterostructures for Asymmetric Supercapacitor Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A novel core‐shell HEA@MXene composite was synthesized to enhance supercapacitor electrochemistry. DFT simulations reveal the role of HEA doping in regulating the MXene interface. The HEA@MXene composite exhibits a high specific capacitance of 872 F g−1 at 1 A g−1 with remarkable stability in 1 M KOH.
Fenhong Song   +8 more
wiley   +1 more source

Hydroxylated MXene‐Assisted In Situ Synthesis of Ultrafine CoHCC Nanoparticles for High‐Performance Potassium‐Ion Battery Anodes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study develops hydroxylated MXene‐supported ultrafine cobalt hexacyanocobaltate anodes through interfacial engineering, achieving enhanced conductivity, structural stability, and superior potassium‐ion storage performance. Cobalt‐based Prussian blue analogs (CoHCC) have emerged as highly promising anode materials for potassium‐ion batteries due to
Anni Chen   +6 more
wiley   +1 more source

Fluorescence Behavior of Water‐Soluble Porphyrins Immobilized on LTA Zeolite and Its Chlorogenic Acid Polyphenol Sensing in Coffee Wastewater

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
During coffee bean and cherry washing, contaminants are released into water, making this process a major source of water pollution. Chlorogenic acid can be efficiently detected using hybrid zeolite–porphyrin materials by measuring fluorescence quenching, achieving detection limits lower than current regulatory thresholds.
João Otávio Donizette Malafatti   +10 more
wiley   +1 more source

Unveiling Strain‐Driven Catalysis in Magnesium Hydride via Ultrafine High‐Entropy Hydride

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The unprecedented, direct, and tailored synthesis of high‐entropy hydride (HEH) nanoparticles is achieved under ambient conditions via one‐step mechanochemical strategy and demonstrates exceptional catalytic behaviors in magnesium hydride (MgH2) hydrogen storage, where partially dehydrogenated HEH introduces abundant lattice strain and hydrogen ...
Jiaguang Zheng   +6 more
wiley   +1 more source

Recent Progress on Graphitic Carbon Nitride–Based Photocatalysts for Hydrogen Peroxide Synthesis

open access: yesExploration, EarlyView.
This review summarizes recent progress in using graphitic carbon nitride (g‐C3N4) photocatalysts to produce hydrogen peroxide (H2O2). It highlights how solar energy can cleanly convert water and oxygen into this valuable chemical. We discuss key modification strategies, such as defect engineering, doping, and junction construction, to enhance ...
Liangpang Xu, Xixian Nan, Jimmy C. Yu
wiley   +1 more source

Reprocessable Vitrimers From Post‐Consumer Polyolefin Blends: Elucidating Phase‐Selective Dynamic Networks

open access: yesMacromolecular Rapid Communications, EarlyView.
Reactive melt extrusion utilizing nitroxide‐mediated silyl ether chemistry transforms post‐consumer high‐density polyethylene and polypropylene blends into robust vitrimers. Featuring highly phase‐selective crosslinking, these upcycled materials combine thermoset‐like dimensional stability at elevated temperatures with dynamic melt‐reprocessability ...
Subhaprad Ash   +3 more
wiley   +1 more source

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