Recent Advances in Architectural Designs and Fabrication Strategies of 2D Fillers in Polymer-based Dielectric Nanocomposites

Materials Today Energy, Год журнала: 2025, Номер 48, С. 101800 - 101800

Опубликована: Янв. 5, 2025

Язык: Английский

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High‐Temperature Polymer Composite Dielectrics: Energy Storage Performance, Large‐Scale Preparation, and Device Design

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Abstract Film capacitors are widely used in advanced electrical and electronic systems. The temperature stability of polymer dielectrics plays a critical role supporting their performance operation at elevated temperatures. For the last decade, investigations for new with high energy storage higher temperatures (>200 °C) have attracted much attention numerous strategies been employed. However, there is currently still large gap between lab research large‐scale production. In this review, main effects on dielectric properties analyzed core modification summarized. scientific technological reasons difference practical application also discussed. Further, several processes film preparation typical device structure design reviewed. current product launches pertaining high‐temperature Conclusive insights future perspectives delineated to offer strategic direction ongoing prospective innovation materials.

Язык: Английский

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Remarkable High‐Temperature Energy Storage in Co‐Polymerized Polyetherimide Via Constructing Hybrid Electrostatic Potential Barriers

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Abstract High‐temperature dielectric polymers are increasingly attracting significant interest for energy storage applications in harsh environments. However, the exponentially increased conduction losses under high temperatures and elevated electric fields often cause serious degradation of capacitive performance dielectrics. Unlike most reported energy‐level tuning strategies, this study introduces a novel approach that constructs localized electrostatic barriers to enhance high‐temperature polyetherimide (PEI) films. By copolymerizing amide groups MPD (1,3‐Phenylenediamine) PAB (4,4′‐Diaminobenzanilide) into PEI backbone, strong separation effect dipoles is established, leading potentials difference. Density Functional Theory (DFT) proves intermolecular local potential fluctuations generate hybrid (4.2 eV) trap carriers suppress their migration within spatial freedom domain. Consequently, largely suppressed leakage current enhanced breakdown strength yielded co‐10PAB/90MPD polymer, creating density 4.3 J cm −3 ( η > 90%) at 200 °C as comparison original PEI‐MPD (2.1 ), which surpasses polymers. This work demonstrates promising paradigm dipolar regulation molecular level

Язык: Английский

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Molecular Interactions-Promoted Mass Transfer in Polymer-Stabilized Emulsions for the Biotransformation of Chlorinated Volatile Organic Compounds

Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Mass transfer is critical in liquid–liquid biphasic catalysis, with considerable attention focused on enhancing mass primarily through increasing the interfacial area. However, driving force, determined by concentration gradient, has received far less attention. In this work, we introduce an alternative approach that not only maximizes area and minimizes distance but also enhances force molecular interactions between amphiphilic polymers substrates, resulting enhanced process. Specifically, polymer was synthesized a positively charged hydrophilic segment hydrophobic containing pyridine motif. The motif facilitates attraction of chlorobenzene dichloromethane to water-organic interface, creating gradient boosts force. Meanwhile, negatively bacteria are drawn interface electrostatic interactions, further reducing distance. As result, degradation improved utmost 3- 5-fold than their controls, respectively. Considering diverse forms work demonstrates concept intensify processes, offering promising avenues for improving reaction efficiency advanced biosynthesis.

Язык: Английский

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Enhancement of High‐Temperature Energy Storage in PEI Dielectrics Through Dual‐Function Scattering/Trap Layers

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Abstract Dielectric capacitors are essential for the effective and dependable performance of new energy electronic circuits. However, storage dielectric materials still face significant challenges, including low density poor thermal stability. In this study, polyetherimide (PEI), a high‐temperature‐resistant material, is selected as subject investigation. A bifunctional three‐layer structure designed to effectively regulate charge carriers. The consists scattering electron layer (4‐NB/PEI) containing 4‐(dimethylamino)phenylboronic acid (4‐NB) trapping (F 4 TCNQ/PEI) 2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane TCNQ). surface inhibits injection, while intermediate suppresses high‐energy transport, leading carrier regulation. results demonstrate that PEI composite achieves optimal when 2 µm 4‐NB/PEI used layer, with F TCNQ/PEI serving layer. Under these conditions, reaches 6.14 J cm − 3 at 150 °C, an efficiency 93.26%. Furthermore, polarization electric field strength 6.90% higher than homogeneous 4‐NB doping. This improvement due combined effects which blocks transport. Additionally, strong interfacial interactions between layers resist impact.

Язык: Английский

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Machine learning-accelerated discovery of polyimide derivatives for high-temperature electrostatic energy storage

Energy storage materials, Год журнала: 2025, Номер unknown, С. 104266 - 104266

Опубликована: Апрель 1, 2025

Язык: Английский

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Recent trends in all-organic polymer dielectrics for high-temperature electrostatic energy storage capacitors

Progress in Polymer Science, Год журнала: 2025, Номер unknown, С. 101957 - 101957

Опубликована: Апрель 1, 2025

Язык: Английский

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Nanostructure Engineering Significantly Enhances Capacitive Energy Storage Performance in All-Polymer Dielectrics at Elevated Temperatures

Nano Letters, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

The growing demand for electrostatic capacitors in high-temperature environments requires dielectric polymers capable of withstanding both elevated temperatures and high electric fields. Here, we investigate all-polymer nanodielectrics (PNDs) fabricated through polymerization-induced microphase separation (PIMS) thermoplastic/thermoset blends, focusing on the role thermoset resins capacitive performance. Two BMI monomers, 2,2-bis(4-(4-maleimidophenoxy)phenylpropane) (BMP) 4,4'-bismaleimidodiphenylmethane (BDM), form cross-linked domains different sizes a polysulfone (PSU) matrix, creating deeper charge traps. While trap depths are similar, PSU/BMP PNDs exhibit higher density owing to smaller BMP resulting from enhanced compatibility with PSU. This reduces current at compared PSU/BDM pristine Consequently, demonstrate superior energy storage temperatures. These findings emphasize importance interfacial area determining electrical properties provide insights designing nanostructured dielectrics advanced applications.

Язык: Английский

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Enhancing high-temperature capacitor performance of alumina-polyimide nanocomposites induced by the microscopic interface charge trap

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162827 - 162827

Опубликована: Фев. 1, 2025

Язык: Английский

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Polymer dielectrics intercalated with a non-contiguous granular nanolayer for high-temperature pulsed energy storage

Energy storage materials, Год журнала: 2025, Номер 77, С. 104213 - 104213

Опубликована: Апрель 1, 2025

Язык: Английский

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