Results 221 to 230 of about 747,597 (268)

No Charging but Protection: Lifetime Prolongation of Spontaneously‐polarized Electrets for Energy Harvesting Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A bilayer protection approach is proposed for slowing down the surface potential decay of thin films of spontaneously‐polarized electret materials. The electret and the protective films are characterized, and the protection effectiveness is investigated under the effects of light illumination, water contact and mechanical impact.
Seyedali Sabzpoushan   +2 more
wiley   +1 more source

Regulating the Dielectric Behavior of Conductive Polymers Through Vapor Phase Infiltration for Tunable Microwave Absorption

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Vapor phase infiltration (VPI) enables atomic‐level dielectric regulation in conductive polymer foams. The VPI‐treated foam exhibits enhanced absorption efficiency per unit thickness (~2.6 times), dynamic frequency tunability (94.5% coverage in 2–18 GHz), and on/off switching ability while retaining performance under acid/alkali exposure and repeated ...
Pengpeng Mou   +6 more
wiley   +1 more source

A Review of Black Phosphorus‐Based Materials: From Preparation Strategies to Characterization Techniques

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The structure, properties, preparation methods, and characterization techniques of BP. As a typical 2D layered material, black phosphorus (BP) demonstrates exceptional promise in various fields, particularly in energy storage for alkali metal‐ion batteries. However, its distinctive structure and properties, together with the compositional complexity of
Yunqing Wang   +7 more
wiley   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li   +4 more
wiley   +1 more source

Orchestration of Climate Action in Municipalities: A Collective Capacity Approach

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Municipalities are increasingly positioned as key actors in enabling local climate action, yet their ability to mobilise societal actors remains insufficiently understood. This study examines how municipal officials in six Finnish municipalities from different local contexts understand and operationalise collective capacity for climate action,
Maija Faehnle   +2 more
wiley   +1 more source

Traumatic knee dislocations: a national database analysis. [PDF]

open access: yesBMC Musculoskelet Disord
Ayik G   +7 more
europepmc   +1 more source

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