Results 221 to 230 of about 48,317 (276)

Aqueous Supercapacitor with Wide‐Temperature Operability and over 100,000 Cycles Enabled by Water‐in‐Salt Electrolyte

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
This study presents a symmetric supercapacitor with activated carbon electrodes and a “water‐in‐salt” electrolyte (WiSE) based on lithium perchlorate, offering over 100,000 cycles with over 90 % capacity retention. The supercapacitor operates efficiently from −20 to 80 °C, enhancing performance, stability, and all‐season operability.
Zahid Ali Zafar   +5 more
wiley   +1 more source

Metalloporphyrin‐Based Cathode for Rechargeable Magnesium‐Ion Batteries: Copper Leaching and Interphase Formation

open access: yesChemSusChem, EarlyView.
The initial cycling of [5,15‐bis(ethynyl)‐10,20‐diphenylporphinato]copper(II) electrodes in rechargeable Mg‐ion batteries is studied using electrochemical, spectroscopic, microscopic, and spectrometric methods such as total reflection X‐ray fluorescence spectrometry and time‐of‐flight secondary ion mass spectrometry .
Tom Philipp   +13 more
wiley   +1 more source

Nanoparticles in microdroplets: Recent advances in microfluidic generators for producing functional microbeads

open access: yesDroplet, EarlyView.
Functional hybrid microbeads with electrical, magnetic, and/or optical responsiveness have emerged as versatile platforms for biotechnology. This review highlights recent advances in microfluidic technologies for producing such microbeads, with a focus on incorporating functional nanoparticles in microdroplet systems.
  Bayinqiaoge   +2 more
wiley   +1 more source

Ultra‐Fast and Economical Pre‐Breakdown Electrochemical Synthesis of Intrinsically Conductive Polymer Suspension for Production of Safe Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This paper presents a breakthrough pre‐breakdown electrochemical method for synthesizing polyNiMeOSalen suspensions, achieving an 83% yield and nanoscale dispersion ($1500/kg) and environmental impact (1.42 kg CO2eq/kg). We report a novel pre‐breakdown electrochemical synthesis method for producing polyNiMeOSalen suspensions with exceptional ...
Evgenii Beletskii   +6 more
wiley   +1 more source

Twenty‐Minute Microwave‐Enabled Dual‐Anion Nickel Sulfoselenide Anodes for High‐Capacity Sodium/Potassium‐Ion Batteries and Durable Pouch Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A dual‐anion‐assisted strategy is proposed for designing bi‐functional high‐performance anodes. The preparation of NiSSe/N‐C within 20 min demonstrates rapid Na+/K+ reaction kinetics, exceptional rate capability, and remarkable cycling stability. Nickel‐based materials are promising anode candidates for sodium‐ion batteries and potassium‐ion batteries ...
Yayun Zheng   +6 more
wiley   +1 more source

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