The electrical characteristics of oxidized poly(thionaphtheneindole) were investigated as a function of ambient relative humidity (r.h.). The current flowing through a pressed pellet of material between two massive gold electrodes plotted against voltage gives a wave-shaped curve with a halfwave potential at V <>=<>~3V. The current recorded at 4V (plateau of the wave) is a sigmoidal function of r.h. with the inflexion point at ~60%. An interpretation of these findings is given, based on the influence of water on the dielectric constant of the material and on acid–base equilibrium between poly(thionaphtheneindole) and water, from which protons are produced. The behaviour of poly (thionaphtheneindole) as the active component of an amperometric humidity sensor is also reported

Casalbore Miceli, G., Camaioni, N., Beggiato, G., Campos, M., Mari, C. (1997). Relationship between ambient humidity and the ionic conductivity of poly(thionaphtenindole): behaviour as an amperometric humidity sensor. JOURNAL OF APPLIED ELECTROCHEMISTRY, 27(4), 441-447 [10.1023/A:1018417821896].

Relationship between ambient humidity and the ionic conductivity of poly(thionaphtenindole): behaviour as an amperometric humidity sensor

MARI, CLAUDIO MARIA
1997

Abstract

The electrical characteristics of oxidized poly(thionaphtheneindole) were investigated as a function of ambient relative humidity (r.h.). The current flowing through a pressed pellet of material between two massive gold electrodes plotted against voltage gives a wave-shaped curve with a halfwave potential at V <>=<>~3V. The current recorded at 4V (plateau of the wave) is a sigmoidal function of r.h. with the inflexion point at ~60%. An interpretation of these findings is given, based on the influence of water on the dielectric constant of the material and on acid–base equilibrium between poly(thionaphtheneindole) and water, from which protons are produced. The behaviour of poly (thionaphtheneindole) as the active component of an amperometric humidity sensor is also reported
Articolo in rivista - Articolo scientifico
dielectric constant, acid-base equilibrium
English
1997
27
4
441
447
none
Casalbore Miceli, G., Camaioni, N., Beggiato, G., Campos, M., Mari, C. (1997). Relationship between ambient humidity and the ionic conductivity of poly(thionaphtenindole): behaviour as an amperometric humidity sensor. JOURNAL OF APPLIED ELECTROCHEMISTRY, 27(4), 441-447 [10.1023/A:1018417821896].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/45526
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