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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Crystallinity, morphology and high dielectric permittivity of NiO nanosheets filling Poly(vinylidene fluoride)

Full text
Author(s):
Amoresi, Rafael A. C. [1, 2] ; Felix, Anderson A. [2] ; Botero, Eriton R. [1] ; Domingues, Nelson L. C. [3] ; Falcao, Evaristo A. [1] ; Zaghete, Maria A. [2] ; Rinaldi, Andrelson W. [4]
Total Authors: 7
Affiliation:
[1] Fed Univ Grande Dourados, GOA, Appl Opt Grp, Dourados, MS - Brazil
[2] Sao Paulo State Univ, Inst Chem, LIEC Dept Chem Techonol, Interdisciplinary Lab Electrochem & Ceram, Araraquara, SP - Brazil
[3] Univ Grande Dourados, Lab Organ Catalysis & Biocatalysis, Dourados, MS - Brazil
[4] Univ Estadual Maringa, Mat Chem & Sensors Lab LMSen, Maringa, Parana - Brazil
Total Affiliations: 4
Document type: Journal article
Source: CERAMICS INTERNATIONAL; v. 41, n. 10, B, p. 14733-14739, DEC 2015.
Web of Science Citations: 13
Abstract

Composite films based on Poly(vinylidene fluoride) (PVDF) polymer filled with Nickel oxide (NiO) nanosheets were prepared via the solution casting method. The effect of NiO filler introduction on the structure and morphology of the composite films were analyzed by X-ray diffraction, Fourier transformed infrared spectroscopy and Scanning Electron Microscopy. The results showed that the crystallinity, beta-phase content and morphology are directly related to the NiO filler concentration into the polymer matrix owing to a heterogeneous nucleation. Electrical measurements revealed dielectric constants up to 45 at 1 kHz and an increasing in conductivity more than two orders of magnitude, with a percolation threshold of about 4.0% v/v of NiO filler content. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved. (AU)

FAPESP's process: 13/14647-6 - Gas sensors based on p-type metal semiconductor oxides: in-situ and operando advanced studies
Grantee:Anderson André Felix
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 12/11979-5 - Development of ZnO films and nanostructures for energy extraction: nanopower generators and piezotronics
Grantee:Maria Aparecida Zaghete Bertochi
Support type: Regular Research Grants