Construcción y caracterización de electrodos de Vidrio/ITO/PANI para la medición de pH

Ingeniería Electrónica, Automática y Comunicaciones

Martín Rodríguez, Eduardo¹  Eirez Izquierdo, José Enrique¹  Somoza Chuay, José Alejandro¹  Pavoni Oliver, Sonnia¹ 

关键词: ITO;    PANI;    pH;    electrodes.;   

DOI  :  

来源: Instituto Superior Politecnico "Jose Antonio Echeverria"

【 摘 要 】

The electronic properties of organic materials can be changed by the influence of different chemical agents. These changes give the possibility to use these materials in different applications like sensors. One of the organic materials studied as detection layer for this kind of sensors is polyaniline (PANI). In this work a Glass/ITO/PANI electrode of 2.5 cm x 1.5 cm x 0.25 cm was constructed using layer by layer (LbL) technique. The potentiometric response was obtained through an instrumentation amplifier (INA116), using a reference electrode (Ag/AgCl) and a work electrode of Glass/ITO/PANI. Buffer solutions with different pH values were evaluated. As results of electrodes characterization, the sensibility of the potentiometric response was -55,12 mV/pH.

【 授权许可】

Unknown