scholarly journals Poly(vinylidene fluoride)/poly(acrylonitrile) – based superior hydrophobic piezoelectric solid derived by aligned carbon nanotubes in electrospinning: fabrication, phase conversion and surface energy

RSC Advances ◽  
2015 ◽  
Vol 5 (93) ◽  
pp. 76383-76391 ◽  
Author(s):  
Salem M. Aqeel ◽  
Zhe Wang ◽  
Lisa Than ◽  
Gollapudi Sreenivasulu ◽  
Xiangqun Zeng
Keyword(s):  
Carbon Nanotubes ◽  
Surface Energy ◽  
Polyvinylidene Fluoride ◽  
Vinylidene Fluoride ◽  
Phase Conversion ◽  
Functionalized Carbon Nanotubes ◽  
Aligned Carbon Nanotubes ◽  
Poly Vinylidene Fluoride ◽  
Piezoelectric Solid ◽  
Poly Acrylonitrile

A superior hydrophobic piezoelectric solid based on the polyvinylidene fluoride (PVDF)–polyacrilonitrile (PAN) blend was fabricated. The phase conversion was derived by functionalized carbon nanotubes under a modified electrospinning field.

Achieving β-phase poly(vinylidene fluoride) from melt cooling: Effect of surface functionalized carbon nanotubes

Polymer ◽  
2014 ◽  
Vol 55 (2) ◽  
pp. 611-619 ◽  
Author(s):  
Kai Ke ◽  
Petra Pötschke ◽  
Dieter Jehnichen ◽  
Dieter Fischer ◽  
Brigitte Voit
Keyword(s):  
Carbon Nanotubes ◽  
Vinylidene Fluoride ◽  
Cooling Effect ◽  
Functionalized Carbon Nanotubes ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Melt Cooling ◽  
Effect Of Surface

Effect of Carbon Nanotubes on the Shape Memory Performance of Poly(vinylidene fluoride)/Acrylic Blends

2013 ◽  
Vol 30 (2) ◽  
pp. 134
Author(s):  
Hui FU ◽  
Jishan QIU ◽  
Ning CHONG ◽  
Yaqing WANG ◽  
Yuanyuan TIAN ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Shape Memory ◽  
Vinylidene Fluoride ◽  
Memory Performance ◽  
Poly Vinylidene Fluoride

scholarly journals Preparation and Electrochemical Characterization of Organic–Inorganic Hybrid Poly(Vinylidene Fluoride)-SiO2 Cation-Exchange Membranes by the Sol-Gel Method Using 3-Mercapto-Propyl-Triethoxyl-Silane

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3265 ◽  
Author(s):  
Li ◽  
Li ◽  
Li ◽  
Guan ◽  
Zheng ◽  
...  
Keyword(s):  
Membrane Potential ◽  
Oxidative Stability ◽  
Water Uptake ◽  
Polyvinylidene Fluoride ◽  
Vinylidene Fluoride ◽  
Sol Gel ◽  
Synthesis Method ◽  
Co2 Production ◽  
Inorganic Hybrid ◽  
Poly Vinylidene Fluoride

A new synthesis method for organic–inorganic hybrid Poly(vinylidene fluoride)-SiO2 cation-change membranes (CEMs) is proposed. This method involves mixing tetraethyl orthosilicate (TEOS) and 3-mercapto-propyl-triethoxy-silane (MPTES) into a polyvinylidene fluoride (PVDF) sol-gel solution. The resulting slurry was used to prepare films, which were immersed in 0.01 M HCl, which caused hydrolysis and polycondensation between the MPTES and TEOS. The resulting Si-O-Si polymers chains intertwined and/or penetrated the PVDF skeleton, significantly improving the mechanical strength of the resulting hybrid PVDF-SiO2 CEMs. The -SH functional groups of MPTES oxidized to-SO3H, which contributed to the excellent permeability of these CEMs. The surface morphology, hybrid structure, oxidative stability, and physicochemical properties (IEC, water uptake, membrane resistance, membrane potential, transport number, and selective permittivity) of the CEMs obtained in this work were characterized using scanning electron microscope and Fourier transform infrared spectroscopy, as well as electrochemical testing. Tests to analyze the oxidative stability, water uptake, membrane potential, and selective permeability were also performed. Our organic–inorganic hybrid PVDF-SiO2 CEMs demonstrated higher oxidative stability and lower resistance than commercial Ionsep-HC-C membranes with a hydrocarbon structure. Thus, the synthesis method described in this work is very promising for the production of very efficient CEMs. In addition, the physical and electrochemical properties of the PVDF-SiO2 CEMs are comparable to the Ionsep-HC-C membranes. The electrolysis of the concentrated CoCl2 solution performed using PVDF-SiO2-6 and Ionsep-HC-C CEMs showed that at the same current density, Co2+ production, and current efficiency of the PVDF-SiO2-6 CEM membrane were slightly higher than those obtained using the Ionsep-HC-C membrane. Therefore, our novel membrane might be suitable for the recovery of cobalt from concentrated CoCl2 solutions.

ZnS/ZnO@CNT and ZnS@CNT nanocomposites by gas phase conversion of ZnO@CNT. A systematic study of their photocatalytic properties

2017 ◽  
Vol 46 (16) ◽  
pp. 5189-5201 ◽  
Author(s):  
Sherif Okeil ◽  
Jan Krausmann ◽  
Inga Dönges ◽  
Sandra Pfleger ◽  
Jörg Engstler ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Phase ◽  
Systematic Study ◽  
Atomic Layer ◽  
Phase Conversion ◽  
Zns Nanoparticles ◽  
Vertically Aligned Carbon Nanotubes ◽  
Layer Deposition ◽  
Aligned Carbon Nanotubes ◽  
Vertically Aligned

ZnS nanoparticles have been synthesized on vertically aligned carbon nanotubes by gas-phase conversion of ZnO nanoparticles which have been tethered on vertically aligned carbon nanotubes using atomic layer deposition (ALD).

scholarly journals Poly(vinylidene fluoride) composites with carbon nanotubes decorated with metal nanoparticles

2018 ◽  
Vol 142 ◽  
pp. 1-8 ◽  
Author(s):  
J. Nunes-Pereira ◽  
P. Sharma ◽  
L.C. Fernandes ◽  
J. Oliveira ◽  
J.A. Moreira ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Metal Nanoparticles ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride
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