Results 41 to 50 of about 805,268 (254)

Review of Piezoelectric Properties and Power Output of PVDF and Copolymer-Based Piezoelectric Nanogenerators

Nanomaterials, 2023
The highest energy conversion efficiencies are typically shown by lead-containing piezoelectric materials, but the harmful environmental impacts of lead and its toxicity limit future use.
Neelesh Bhadwal, Ridha Ben Mrad, Kamran Behdinan   +2 more
doaj   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

Advanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri, Asif Abdullah Khan, Md Fahim Al Fattah, Mahmoud Almadhoun, Shamaila Shahzadi, Aixi Pan, Md Soyaeb Hasan, Henry Wu, Arash Aghigh, Bhawna Bhawna, François Légaré, Vivek Maheshwari, Dayan Ban   +12 more
wiley   +1 more source

β-Phase Crystallization of Poly(vinylidene fluoride) in Poly(vinylidene fluoride)/Poly(ethyl methacrylate) Blends

Chinese Journal of Polymer Science, 2018
The nature of the crystalline phase of poly(vinylidene fluoride) (PVDF) in compatible blends with poly(ethyl methacrylate) (PEMA) was investigated by using X-ray diffraction (XRD), infrared microscopy (IR) and differential scanning calorimetry (DSC). The β phase of PVDF was observed after quenching from the melt and further annealing above the glass ...
Zi-Jie Huang, Jing Jiang, Gi Xue, Dong-Shan Zhou   +3 more
openaire   +2 more sources

A Particle‐Level Dual‐Polymer Interphase for Coupled Interfacial and Contact Stabilization of Zinc Metal Powder Anodes in Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
A particle‐level dual‐polymer interphase of carboxymethyl cellulose (CMC) and poly(acrylic acid) (PAA) stabilizes zinc metal powder anodes by coupling CMC‐mediated water regulation with PAA‐derived Zn2+ affinity. This synergy suppresses hydrogen evolution, corrosion, and byproduct accumulation while preserving electrode‐level electrical contact ...
Yunah Ahn, Ye‐Won Kim, Dong Il Kim, Daehyun Kim, Kee‐Sun Sohn, Woon Bae Park, Jin Pyo Hong, John Hong   +7 more
wiley   +1 more source

Molecular structure of chemically carbonized poly (vinylidene fluoride) films (IR-spectroscopy data)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2018
The relevance of the research is caused by the importance of elaboration and improvement of the carbon-based nanomaterials synthesis technique. Synthesis of a chain-like carbon and study of its properties are of fundamental interest for experimental ...
Vladimir E. Zhivulin, Dmitriy A. Zherebtsov, Leonid A. Pesin   +2 more
doaj   +2 more sources

Grafting of Maleic Anhydride onto Poly(vinylidene fluoride) Using Reactive Extrusion

Molecules, 2023
Poly(vinylidene fluoride) was grafted with maleic anhydride through reactive extrusion by using diisopropyl benzene peroxide as an initiator and 9-vinyl anthracene as a stabilizer.
Cuichuan Zhang, Zhiqiang Lu, Bin Wu, Shu-Dong Jiang, Jiasheng Qian   +4 more
doaj   +1 more source

Biocompatible Conjugated Electrospinning Nanofibrous Membrane With Self‐Powered Piezoelectric Capacity for Accelerated Wound Healing

Advanced Healthcare Materials, EarlyView.
A self‐powered PCL/gelatin‐PVDF‐TrFE/MXene conjugated electrospun membrane integrates biocompatibility with enhanced piezoelectric responsiveness. Mechanical deformation is converted into localized electrical signals that stimulate wound‐repair cells proliferation and migration, promote angiogenesis and tissue remodeling, and accelerate full‐thickness ...
Diandian Li, Ke Wu, Yangyang Lu, Qinglan Xia, Jialong Chen, Yifan Zhang, Zhaoyu Chen, Zhiyuan She, Junjin Jie, Juzi Xia, Muran Zhou, Aimei Zhong   +11 more
wiley   +1 more source

Preparation and characterization of poly(vinylidene fluoride): A high dielectric performance nano-composite for electrical storage

Results in Physics, 2016
We have prepared films of polymer nano-composite (PNC) of poly[vinylidene-fluoride] (PVDF) and bismuth vanadate (BiVO4) nanoparticles. The α and γ electro-active phases were detected, and the addition of BiVO4 drastically increases the formation of the α-
S. Abdalla, A. Obaid, F.M. Al-Marzouki
doaj   +1 more source

Crystal phase transformation of α into β phase poly(vinylidene fluoride) via particle formation caused by rapid expansion of supercritical solutions [PDF]

RSC Advances, 2015
This contribution reports on the impact of the rapid expansion of supercritical solutions (RESS) on poly(vinylidene fluoride) (PVDF) properties in terms of particle size, molar mass distribution, crystal phase and finally piezoelectric behavior. Based on
S. Wolff, F. Jirasek, S. Beuermann, M. Türk   +3 more
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source