Composites of polyvinyl alcohol and carbon (coils, undoped and nitrogen doped multiwalled carbon nanotubes) as ethanol, methanol and toluene vapor sensors.
J Nanosci Nanotechnol
; 11(11): 10211-8, 2011 Nov.
Article
em En
| MEDLINE
| ID: mdl-22413367
ABSTRACT
We investigate the chemical sensing behavior of composites prepared with polyvinyl alcohol and carbon materials (undoped multiwalled carbon nanotubes, nitrogen-doped multiwalled carbon nanotubes and carbon nanocoils). We determine the sensitivity of thin films of these composites for ethanol, methanol and toluene vapor, comparing their conductance and capacitance responses. The composite that exhibits highest sensitivity depends on specific vapor, vapor concentration and measured electrical response, showing that the interactivity of the carbon structure with chemical species depend on structural specificities of the carbon structure and doping.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Álcool de Polivinil
/
Tolueno
/
Nanotubos de Carbono
/
Etanol
/
Metanol
/
Gases
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article