Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloCarbon nanotube acoustic and optical sensors for volatile organic compound detection
Anno di pubblicazione2005
Formato
  • Elettronico
  • Cartaceo
Autore/iPenza, M., Cassano, G., Aversa, P., Cusano, A., Cutolo, A., Giordano, M., Nicolais, L.
Affiliazioni autoriENEA, Materials and New Technologies Unit, SS. 7, Appia, km 714, 72100 Brindisi, Italy; Department of Engineering, University of Sannio, Corso Garibaldi, 104, 82100 Benevento, Italy; Institute for Composite and Biomedical Materials, CNR Piazzale Tecchio, 80-80124 Napoli, Italy
Autori CNR e affiliazioni
  • LUIGI NICOLAIS
  • MICHELE GIORDANO
Lingua/e
  • inglese
AbstractCarbon nanotube coated acoustic and optical sensors have been successfully studied for volatile organic compound (VOC) sensing applications, at room temperature. Here, Langmuir-Blodgett (LB) films consisting of tangled bundles of single-walled carbon nanotubes (SWCNTs) have been transferred onto different transducing sensors by using a linker-buffer LB multilayered material of cadmium arachidate pre-deposited on the sensor surface to promote adhesion of SWCNTs. Two different kinds of sensors have been designed, fabricated and utilized: quartz crystal microbalance 10 MHz AT-cut quartz resonators and standard silica optical fibre sensors based on light reflectometry at a wavelength of 1310 nm. The proposed detection techniques are focused on two key parameters in gas sensing applications: mass and refractive index, and their changes induced by gas molecule absorption. The results indicate high sensitivity, good repeatability and reversibility. Signals from each sensor type have been analysed and processed by using pattern recognition techniques such as principal component analysis and use of artificial neural networks. The recognition of the hybrid system is successfully performed, improving the data fusion from acoustic and optical sensors with SWCNT-functionalized sensors that are highly discriminating. To our knowledge, this is the first reported study of combined hybrid integration of acoustic sensors with optical fibre sensors using nanostructured materials as single-walled carbon nanotubes for VOC detection, at room temperature.
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Pagine da2536
Pagine a2547
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RivistaNanotechnology (Bristol. Print)
Attiva dal 1990
Editore: IOP Publishing, - Bristol
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 0957-4484
Titolo chiave: Nanotechnology (Bristol. Print)
Titolo proprio: Nanotechnology. (Bristol. Print)
Titolo abbreviato: Nanotechnology (Bristol. Print)
Numero volume della rivista16
Fascicolo della rivista-
DOI-
Verificato da referee-
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000233494500013)
Parole chiave-
Link (URL, URI)-
Titolo parallelo-
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Strutture CNR
  • IMCB — Istituto per i materiali compositi e biomedici
Moduli/Attività/Sottoprogetti CNR
  • SP.P08.013.001 : Tecnologie di materiali polimerici, compositi e nanostrutture
Progetti Europei-
Allegati
Penza et al 2005 (documento privato )
Tipo documento: application/pdf

Dati storici
I dati storici non sono modificabili, sono stati ereditati da altri sistemi (es. Gestione Istituti, PUMA, ...) e hanno solo valore storico.
Area disciplinareMaterials Science & Engineering
Area valutazione CIVRScienze chimiche
Rivista ISINANOTECHNOLOGY [10906J0]
Notecit. 31