导电高分子纳米粒子作为对钾离子敏感的离子选择性电极中的固体接触。
Conductive Polymer Nanoparticles as Solid Contact in Ion-Selective Electrodes Sensitive to Potassium Ions.
机构信息
College of Information Science and Engineering, Henan University of Technology, Zhengzhou 450001, China.
College of Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China.
出版信息
Molecules. 2023 Apr 5;28(7):3242. doi: 10.3390/molecules28073242.
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.
提出了一种基于聚（3-辛基噻吩-2,5-二基）（POT）和炭黑（CB）的纳米复合材料的制备方法，将其作为全固态钾离子选择电极的换能器。POT 用作 CB 的分散剂，所得纳米复合材料具有独特的特性，包括高导电性、高电容和高稳定性。通过循环伏安法（CV）、电化学阻抗谱（EIS）和计时电位法对基于 POT 和 CB 的钾离子选择电极进行了表征。结果表明，钾离子的检测限为 10 M，斜率为 57.6 ± 0.8 mV/decade。水层测试和抗干扰测试表明，该电极具有高疏水性，静态接触角达到 139.7°，不易受光、O 和 CO 的影响。
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