Polypyrrole functionalized with FePcTSA for NO(2) sensor application

TitlePolypyrrole functionalized with FePcTSA for NO(2) sensor application
Publication TypeJournal Article
Year of Publication2009
AuthorsPaul, S, Joseph, M
JournalSensors and Actuators B-Chemical
Volume140
Issue2
Pagination439-444
Date PublishedJUL
ISSN0925-4005
KeywordsChemical sensor, Fe(III)phthalocyanine tetrasulfonate, Nitrogen dioxide, polypyrrole
Abstract

The nitrogen dioxide (NO(2)) sensing capability of polypyrrole (PPy) was enhanced dramatically after functionalized with iron(III)phthalocyanine-4,4',4 `',4'''-tetrasulfonic acid monosodium salt (FePcTSA). The incorporated phthalocyanine was confirmed by different characterization techniques such as UV-vis spectroscopy, FTIR, GFAAS, EDAX, etc. The resistance of the functionalized PPy decreased spontaneously during exposure to NO(2) gas at room temperature. This material exhibited excellent stability, reversibility, and reproducibility. The lowest response time (t(50)) thus obtained is 47 s with a highest response factor (Delta R/R(0) x 100) of 50.25. (C) 2009 Elsevier B.V. All rights reserved.

DOI10.1016/j.snb.2009.04.043
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.368
Divison category: 
Physical and Materials Chemistry