Synthesis of Conductive PPySiO2 Aerogels Nanocomposites by In Situ Polymerization of Pyrrole
Joint Authors
Muller, Daliana
Pinheiro, Geneviève K.
Bendo, Tatiana
Gutiérrez Aguayo, Alberto J.
Barra, Guilherme M. O.
Rambo, Carlos R.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-17
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Electrical conductive nanocomposite aerogels were synthesized through in situ oxidative polymerization of pyrrole (Py) using ammonium persulfate (APS) as an oxidizing agent in SiO2 gels.
The effect of Py concentration on the electrical conductivity and physical and morphological properties of aerogels SiO2/PPy was evaluated.
B.E.T.
analysis indicated that the surface area of the composite SiO2/PPy decreases with increasing concentration of Py.
CHN analysis showed an increase in the amount of PPy, from 13 wt.% to 23 wt.%, with increasing concentration of pyrrole synthesis.
FTIR-ATR analysis of the composites revealed bands in the region of 1500–1400 cm−1, indicating the presence of the conductive polymer in the silica aerogel as well as the characteristic bands of Si-O-Si and Si-OH covalent bonds.
TEM micrographs revealed the presence of particles of PPy with the increased size of the nanoparticles.
The composites were successfully applied as passive components, in RC circuits, for low-pass frequency filters.
The filters exhibited a cutoff frequency at approximately 435 Hz.
The aerogels obtained in this work exhibited suitable electrical conductivity for use in various other applications in electronics.
American Psychological Association (APA)
Muller, Daliana& Pinheiro, Geneviève K.& Bendo, Tatiana& Gutiérrez Aguayo, Alberto J.& Barra, Guilherme M. O.& Rambo, Carlos R.. 2015. Synthesis of Conductive PPySiO2 Aerogels Nanocomposites by In Situ Polymerization of Pyrrole. Journal of Nanomaterials،Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1069206
Modern Language Association (MLA)
Muller, Daliana…[et al.]. Synthesis of Conductive PPySiO2 Aerogels Nanocomposites by In Situ Polymerization of Pyrrole. Journal of Nanomaterials No. 2015 (2015), pp.1-6.
https://search.emarefa.net/detail/BIM-1069206
American Medical Association (AMA)
Muller, Daliana& Pinheiro, Geneviève K.& Bendo, Tatiana& Gutiérrez Aguayo, Alberto J.& Barra, Guilherme M. O.& Rambo, Carlos R.. Synthesis of Conductive PPySiO2 Aerogels Nanocomposites by In Situ Polymerization of Pyrrole. Journal of Nanomaterials. 2015. Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1069206
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069206