Journal article
Record Efficiency of β-Phase PVDF-MXene Composites in Thin-Film Dielectric Capacitors
Advanced materials (Weinheim), v 37(12), pp e2419088-n/a
01 Mar 2025
PMID: 39951011
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Polyvinylidene fluoride (PVDF) is a semicrystalline polymer used in thin-film dielectric capacitors because of its inherently high dielectric constant and low loss tangent. Its dielectric constant can be increased by the formation and alignment of its beta-phase crystalline structure, which can be facilitated by 2D nanofillers. 2D carbides and nitrides, MXenes, are promising candidates due to their notable dielectric permittivity and ability to increase interfacial polarization. Still, their mixing is challenging due to weak interfacial interactions and poor dispersibility of MXenes in PVDF. This work explores a novel method for delaminating Ti3C2Tx MXene directly into organic solvents while maintaining flake size and quality, as well as the use of a non-solvent-induced phase separation method for producing both dense and porous PVDF-MXene composite films. A deeper understanding of dielectric behavior in these composites is reached by examining MXenes with both mixed and pure chlorine terminations in PVDF matrices. Thin-film capacitors fabricated from these composites display ultrahigh discharge energy density, exceeding 45 J cm-3 with 95% efficiency. The PVDF-MXene composites are also processed using a green and sustainable solvent, propylene carbonate.
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Details
- Title
- Record Efficiency of β-Phase PVDF-MXene Composites in Thin-Film Dielectric Capacitors
- Creators
- James Fitzpatrick - Drexel University, A.J. Drexel Nanomaterials InstituteSumit Bera - Jackson State UniversityAlex Inman - Drexel UniversityAlessandra Cabrera - Drexel UniversityTeng Zhang - Drexel University, A.J. Drexel Nanomaterials InstituteTetiana Parker - Drexel UniversityBita Soltan Mohammadlou - Drexel UniversityIryna Roslyk - Drexel University, Materials Science and EngineeringStefano Ippolito - Drexel University, A.J. Drexel Nanomaterials InstituteKateryna Shevchuk - Drexel University, A.J. Drexel Nanomaterials InstituteSujit A. Kadam - Jackson State UniversityNihar R. Pradhan - Jackson State UniversityYury Gogotsi - Drexel University, Materials Science and Engineering
- Publication Details
- Advanced materials (Weinheim), v 37(12), pp e2419088-n/a
- Publisher
- Wiley
- Number of pages
- 12
- Grant note
- W911NF-22-1-0281 / Army Research office CHE-2318105 (M-STAR CCI) / U.S. National Science Foundation; National Science Foundation (NSF) Air Force Research Laboratory (AFRL); United States Department of Defense; US Air Force Research Laboratory RRID: SCR_022684; 2216175 / Balldyel Technologies Inc. PACRI-JSU-02 / Princeton Alliance for Collaborative Research and Innovation (PACRI) NSF National Nanotechnology Coordinated Infrastructure Program
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Mechanical Engineering and Mechanics; A.J. Drexel Nanomaterials Institute
- Web of Science ID
- WOS:001420694200001
- Scopus ID
- 2-s2.0-105001546205
- Other Identifier
- 991022028237204721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter