Results 231 to 240 of about 28,462 (309)

Titanium Dioxide Induced Immobilization of Small Platinum Nanoparticles on Carbon Spherogels: A Strategy Towards Stable and Efficient Electrocatalysts for the Hydrogen Evolution Reaction

open access: yesSmall, EarlyView.
Platinum nanoparticles are immobilized on hollow carbon spherogels using supercritical deposition, enabling precise control over nanoparticle size, loading, and spatial distribution. Incorporation of an internal TiO2 sublayer in the hollow sphere support induces enhanced metal–support interactions, markedly improving hydrogen evolution activity and ...
Philip S. Pein   +11 more
wiley   +1 more source

Simplified Spray Pyrolysis Synthesis Enabling a Novel Dual‐Doping Strategy for Ultrahigh‐Rate Ni‐Rich Cathode Materials for Lithium‐Ion Batteries

open access: yesSmall, EarlyView.
A novel concept for simplified Zr‐ and Ti‐co doping in Ni‐rich layered cathode materials via spray pyrolysis was introduced, delivering excellent rate performance. Spray pyrolysis enables the synthesis of Li‐containing precursors and allows for short‐term, low‐temperature calcination.
Ha Kyeong Kim   +7 more
wiley   +1 more source

External Stimuli‐Activable Single‐Atom Nanozymes for Bioapplications

open access: yesSmall, EarlyView.
Stimuli‐activable single‐atom nanozymes (SANs) are reviewed from materials design to biomedical applications. We explain electronic‐structure tuning principles and synthesis strategies that maximize the responsiveness of metal active sites and supports to light, ultrasound, and magnetic fields.
Hyun Ko   +6 more
wiley   +1 more source

Evaluating Plasma Torches as a Low‐Decarburization Preheating Method for MgO–C Refractory Linings

open access: yessteel research international, EarlyView.
This study evaluates direct current (DC) plasma torches using nitrogen as an alternative preheating method for magnesia‐carbon (MgO–C) refractory‐lined ladles. Full‐scale trials at 0.7 and 1.5 MW are compared to conventional gas burner. Plasma‐heated samples show lower decarburization and improved surface integrity due to partial sintering and reduced ...
Marcus Holmström   +3 more
wiley   +1 more source

Recycling of Mill Scale Into High‐Purity Iron Through Hydrogen‐Based Reduction

open access: yessteel research international, EarlyView.
Mill scale, an iron oxide–rich steel by‐product, is difficult to recycle due to impurities. This study evaluates hydrogen‐based direct reduction and hydrogen plasma smelting reduction as low‐carbon recycling routes. Impurity segregation limits reduction kinetics. Direct reduction achieves 92% conversion in 180 min, while plasma reduction reaches 91% in
Nathalia C. Verissimo   +8 more
wiley   +1 more source

Enhanced humidity sensing performance of LiF-doped MgTiO3 ceramics via spark plasma sintering. [PDF]

open access: yesHeliyon
Kassas A   +7 more
europepmc   +1 more source

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