Conductive Polymer Nanoparticles as Solid Contact in Ion-Selective Electrodes Sensitive to Potassium Ions

A preparation method of nanocomposites based on poly (3-octylthiophene-2,5-diyl) (POT) and carbon black (CB) as the transducer of an all-solid potassium ion selective electrode is proposed. POT is used as the dispersant of CB, and the obtained nanocomposites have unique characteristics, including hi...

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Published in:Molecules (Basel, Switzerland) Switzerland), 2023-04, Vol.28 (7), p.3242
Main Authors: Bao, Hui, Ye, Jin, Zhao, Xuyan, Zhang, Yuan
Format: Article
Language:English
Subjects:
Black carbon
Capacitance
Carbon black
Carbon dioxide
carbon nanotubes
Chemical properties
Composite materials
Conducting polymers
conductive polymer
Contact angle
Dispersants
Electrochemical impedance spectroscopy
Electrochemistry
Electrodes
Graphene
Hydrophobicity
ion-selective
Ion-selective electrodes
Ions
Materials
Nanocomposites
Nanoparticles
Polymers
Potassium
Production processes
Sensors
Spectroscopy
Spectrum analysis
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description A preparation method of nanocomposites based on poly (3-octylthiophene-2,5-diyl) (POT) and carbon black (CB) as the transducer of an all-solid potassium ion selective electrode is proposed. POT is used as the dispersant of CB, and the obtained nanocomposites have unique characteristics, including high conductivity, high capacitance and high stability. The potassium ion selective electrode based on POT and CB was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and chronopotentiometry. The results showed that the detection limit of potassium ions was 10 M, and the slope was 57.6 ± 0.8 mV/façade. The water layer test and anti-interference test show that the electrode has high hydrophobicity, the static contact angle reaches 139.7° and is not easily affected by light, O and CO .
doi_str_mv 10.3390/molecules28073242
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subjects Black carbon
Capacitance
Carbon black
Carbon dioxide
carbon nanotubes
Chemical properties
Composite materials
Conducting polymers
conductive polymer
Contact angle
Dispersants
Electrochemical impedance spectroscopy
Electrochemistry
Electrodes
Graphene
Hydrophobicity
ion-selective
Ion-selective electrodes
Ions
Materials
Nanocomposites
Nanoparticles
Polymers
Potassium
Production processes
Sensors
Spectroscopy
Spectrum analysis
title Conductive Polymer Nanoparticles as Solid Contact in Ion-Selective Electrodes Sensitive to Potassium Ions
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