Novel low humidity sensor made of TiO(2) nanowires/poly(2-acrylamido-2-methylpropane sulfonate) composite material film combined with quartz crystal microbalance.
Talanta
; 69(4): 946-51, 2006 Jun 15.
Article
en En
| MEDLINE
| ID: mdl-18970662
ABSTRACT
A novel ceramic nanowires of TiO(2) and poly(2-acrylamido-2-methylpropane sulfonate) (TiO(2) NWs/PAMPS) composite material films coated on quartz crystal microbalance (QCM) was prepared as a low humidity sensor. The 50wt.% of TiO(2) NWs/PAMPS composite material films showed excellent sensitivity (2.63-DeltaHz/Deltappm(v)) at 31.5ppm(v)), linearity (R(2)=0.9959) and acceptable response time (64s at 34.6ppm(v)). The low humidity sensing mechanism was discussed in terms of surface texture and nanostructured morphology of the composite materials. Moreover, the adsorption dynamic analysis, molecular mechanics calculation (association constant), was used to elucidate the effect of adding 50wt.% TiO(2) NWs into PAMPS in the increased sensitivity of low humidity sensing.
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1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Talanta
Año:
2006
Tipo del documento:
Article
País de afiliación:
Taiwán