Results 261 to 270 of about 15,310 (342)

Long‐Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid‐State NMR Spectroscopy

open access: yesBatteries &Supercaps, EarlyView.
The suitability of 23Na in situ solid‐state nuclear magnetic resonance (NMR) spectroscopy for long‐term studies of sodium/sodium ion cells is tested. Using silicon carbonitride and hard carbon working electrodes, local structures are analyzed up to the point of capacity degradation and cell failure.
Sonja Egert   +7 more
wiley   +1 more source

Toward personalized healthcare: Advances in two‐dimensional nanomaterial‐based flexible electrochemical sensors for physiological monitoring

open access: yesBMEMat, EarlyView.
This review provides an overview of the properties, composites and application of two‐dimensional (2D) nanomaterials for wearable electrochemical biosensors. Also, the challenges and future prospects of utilizing 2D nanomaterials in wearable electrochemical biosensor applications are discussed.
Kou Zhang   +8 more
wiley   +1 more source

Decarburization and Its Effects on the Properties of Plasma-Nitrided AISI 4140 Steel: A Review. [PDF]

open access: yesMaterials (Basel)
Stojanović Ž   +6 more
europepmc   +1 more source

Recent Advances in Tailoring Active Site Microenvironments of Fe–N–C Catalysts for Oxygen Reduction

open access: yesChemistryEurope, EarlyView.
This review summarizes the main factors affecting Fe–N–C catalysts for ORR: activity depends on active site structure, electronic configuration, and porosity, while stability is limited by metal leaching, carbon degradation, and inactive phase formation.
Mudassar Maqsood   +6 more
wiley   +1 more source

Application of concentrated solar energy in postprocessing of selective laser melted Ti6Al4V alloy through simultaneously gas nitriding and heat treatment. [PDF]

open access: yesSci Rep
Chicos LA   +10 more
europepmc   +1 more source

Advances in Triboelectric Nanogenerators With Rotating Structure

open access: yesCarbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang   +4 more
wiley   +1 more source

Interface Engineering Remarkably Improves the Stability of Fe‐Based Electrode for Alkaline Water Electrolysis at Industrial Ampere‐Level Current Density

open access: yesCarbon Energy, EarlyView.
Interface engineering improves the stability of iron‐based industrial oxygen evolution catalysts by more than 2000 times at ampere‐level current density. ABSTRACT Iron‐based self‐supported electrocatalysts offer cost‐effective oxygen evolution activity but suffer from severe stability degradation under industrial operation.
Chunfa Liu   +10 more
wiley   +1 more source

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