Protein promoted β-phase nucleation in poly (vinylidene fluoride) for energy harvesting applications

2019 ◽  
Author(s):  
Chetana Ghosal ◽  
Sujoy Kumar Ghosh ◽  
Dipankar Mandal ◽  
Brajadulal Chattopadhyay
Keyword(s):  
Energy Harvesting ◽  
Vinylidene Fluoride ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation

Role of Cationic Oxidation States to Enhance the Electroactive β-Phase of Poly(vinylidene Fluoride) and its Energy Harvesting Performance

2018 ◽  
Vol 5 (22) ◽  
pp. 3533-3539 ◽  
Author(s):  
Kausalya Ganesan ◽  
Nagamalleswara R. Alluri ◽  
Nirmal Prashanth M. J. Raj ◽  
A. Chandrasekhar ◽  
S.-J. Kim
Keyword(s):  
Energy Harvesting ◽  
Vinylidene Fluoride ◽  
Oxidation States ◽  
Β Phase ◽  
Poly Vinylidene Fluoride

The role of cerium(iii)/yttrium(iii) nitrate hexahydrate salts on electroactive β phase nucleation and dielectric properties of poly(vinylidene fluoride) thin films

RSC Advances ◽  
2015 ◽  
Vol 5 (36) ◽  
pp. 28487-28496 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Nur Amin Hoque ◽  
Sukhen Das ◽  
...  
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Nitrate Hexahydrate ◽  
Yttrium Nitrate ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation ◽  
Yttrium Nitrate Hexahydrate

Electroactive β phase nucleation in cerium/yttrium nitrate hexahydrate salt modified PVDF thin filmsviaformation of hydrogen bonds.

Improvement of electroactive β phase nucleation and dielectric properties of WO3·H2O nanoparticle loaded poly(vinylidene fluoride) thin films

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62819-62827 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Biswajoy Bagchi ◽  
Nur Amin Hoque ◽  
Sukhen Das ◽  
...  
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Vinylidene Fluoride ◽  
Nucleation Mechanism ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation

Electroactive β phase nucleation mechanism and promising dielectric properties of WO3·H2O nanoparticle loaded PVDF thin films.

scholarly journals Nucleation of the electroactive phase of poly(vinylidene fluoride) by ferrite nanoparticles: surface versus size effects

2011 ◽  
Vol 1312 ◽  
Author(s):  
P. Martins ◽  
C. M. Costa ◽  
M. Benelmekki ◽  
S. Lanceros-Mendez
Keyword(s):  
Data Storage ◽  
Vinylidene Fluoride ◽  
Ferrite Nanoparticles ◽  
Surface Interaction ◽  
Particulate Composites ◽  
Research Activity ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Magnetoelectric Materials ◽  
Phase Nucleation

ABSTRACTMultiferroics and magnetoelectric materials show interesting scientific challenges and technnologial applications in sensors, acuators and data storage. In view of the fact that only a small number of materials show this kind of properties, exhaustive research activity is being pursued towards the development of new composite materials. Multiferroic nanocomposites films composed of piezoelectric poly(vinylidene fluoride) (PVDF) and magnetostrictive nanosize CoFe2O4, NiFe2O4 or NiZnFe2O4 ferrites were prepared by a solution method. Those ferrite nanoparticles have the ability to nucleate the electroactive β-phase of the polymer, providing in this way an easy route for the preparation of magnetoelectric particulate composites. The fact that the different nanoparticles promotes different amount of β-phase nucleation for different concentrations of nanoparticles indicates that filler size is not the most important parameter determining phase nucleation but the filler-matrix surface interaction. Further, when the polymer-ferrite surface interaction is modified through surfactation, the electroactive phase is not nucleated.

Improving the thermal stability, electroactive β phase crystallization and dielectric constant of NiO nanoparticle/C–NiO nanocomposite embedded flexible poly(vinylidene fluoride) thin films

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26288-26299 ◽  
Author(s):  
Pradip Thakur ◽  
Arpan Kool ◽  
Nur Amin Hoque ◽  
Biswajoy Bagchi ◽  
Swagata Roy ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Dielectric Constant ◽  
Vinylidene Fluoride ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation ◽  
Nio Nps ◽  
High Dielectric

Increasing β phase nucleation and formation of microcapacitors in flexible high dielectric NiO NPs/C–NiO NCs modified PVDF films.

Precipitation-Printed High-β Phase Poly(vinylidene fluoride) for Energy Harvesting

2020 ◽  
Vol 12 (52) ◽  
pp. 58072-58081
Author(s):  
Ruowen Tu ◽  
Ethan Sprague ◽  
Henry A. Sodano
Keyword(s):  
Energy Harvesting ◽  
Vinylidene Fluoride ◽  
Β Phase ◽  
Poly Vinylidene Fluoride

scholarly journals Development of poly (vinylidene fluoride)/silver nanoparticle electrospun nanofibre mats for energy harvesting

2021 ◽  
pp. 096739112110420
Author(s):  
Roopa Thotadara Shivalingappa ◽  
Hebbale Narayana Rao Narasimha Murthy ◽  
Pradeep Purushothaman ◽  
Prasanna Badiger ◽  
Swapnil Savarn ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Polyvinylidene Fluoride ◽  
Vinylidene Fluoride ◽  
Piezoelectric Materials ◽  
Applied Pressure ◽  
Fibre Diameter ◽  
X Ray Diffraction ◽  
Β Phase ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Poly Vinylidene Fluoride

Energy harvesting using piezoelectric materials finds attention of researchers due to miniaturisation. Polyvinylidene fluoride (PVDF) is one such polymeric material with high piezoelectric and pyroelectric properties and hence is used for sensors, actuators, energy harvesting and biomedical devices. This study reports electrospinning of PVDF/Ag nanoparticles (AgNP) nanofibre mats for energy harvesting. Nanofibre mats were prepared by adopting voltage (20 kV), flow rate (1.5 mL/hour) and tip to collector distance (19 cm). The fibre mats were characterised using Fourier-Transformed Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). FTIR and XRD results showed 11.84% and 36.36% increase in β-phase and crystallinity, respectively, due to the addition of 1.5 wt. % AgNP to PVDF. SEM micrographs showed decrease in bead formation and increase in fibre diameter from 40 nm to 355 nm due to the addition of AgNP. Sensitivity and voltage output were studied. The fibre mats were used for development of a miniature burglar alarm system, and its response to the applied pressure was tested.

On the origin of the electroactive poly(vinylidene fluoride) β-phase nucleation by ferrite nanoparticles via surface electrostatic interactions

CrystEngComm ◽  
2012 ◽  
Vol 14 (8) ◽  
pp. 2807 ◽  
Author(s):  
Pedro Martins ◽  
Carlos M. Costa ◽  
Maria Benelmekki ◽  
Gabriela Botelho ◽  
Senentxu Lanceros-Mendez
Keyword(s):  
Electrostatic Interactions ◽  
Vinylidene Fluoride ◽  
Ferrite Nanoparticles ◽  
Β Phase ◽  
Poly Vinylidene Fluoride ◽  
Phase Nucleation

scholarly journals Retraction: A bio-based piezoelectric nanogenerator for mechanical energy harvesting using nanohybrid of poly(vinylidene fluoride)

2021 ◽  
Author(s):  
Anna Rulka
Keyword(s):  
Energy Harvesting ◽  
Vinylidene Fluoride ◽  
Mechanical Energy ◽  
Poly Vinylidene Fluoride

Retraction for ‘A bio-based piezoelectric nanogenerator for mechanical energy harvesting using nanohybrid of poly(vinylidene fluoride)’ by Pralay Maiti et al., Nanoscale Adv., 2019, 1, 3200–3211, DOI: 10.1039/C9NA00214F.

High Efficient and Continuous Triboelectric Power Harvesting based on Porous β-phase Poly (vinylidene fluoride) Aerogel

2021 ◽  
Author(s):  
Minmin Wang ◽  
Weiqun Liu ◽  
Xu Shi ◽  
Jinyang Pan ◽  
Bing Zhou ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
High Electron ◽  
Exchange Method ◽  
Power Harvesting ◽  
Β Phase ◽  
Output Performance ◽  
High Electron Affinity ◽  
High Efficient ◽  
Poly Vinylidene Fluoride ◽  
High Output

Non-additive β-phase porous poly (vinylidene fluoride) (PVDF) aerogel with high electron affinity is successfully prepared through simple solvent exchange method. The as-prepared additive-free PVDF aerogel shows high output performance used...

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