ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY OF POLY (PYRROLE-CO-2,4-DINITROANILINE) MODIFIED COMPOSITE GRAPHITE ELECTRODE

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PARSA ALI; Aliasghari Maryam; MAZLOOMIFAR ALI

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Seminar Paper

Paper Information

Seminar: IRANIAN BIENNIAL ELECTROCHEMISTRY SEMINAR
Year:2014 | Issue:11

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Title

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY OF POLY (PYRROLE-CO-2,4-DINITROANILINE) MODIFIED COMPOSITE GRAPHITE ELECTRODE

Author(s)

PARSA ALI | Aliasghari Maryam | MAZLOOMIFAR ALI | Issue Writer Certificate

Keywords

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY

CHARGE TRANSFER RESISTANCE

NYQUIST PLOT

Abstract

CONDUCTIVE POLYMERS DUE TO THEIR WIDE APPLICATIONS HAVE ATTRACTED THE ATTENTION OF MANY RESEARCHERS IN RECENT YEARS [1]. ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS) IS A USEFUL TECHNIQUE FOR STUDYING THE STRUCTURE AND CONDUCTIVE PROPERTIES AT THE CONDUCTIVE POLYMERS SUCH AS POLYPYRROLE AND POLYANILINE [2]. IN THIS WORK, ELECTROCOPOLYMERIZAITON OF PYRROLE (PY) AND 2, 4- DINITROANILINE (DNA) ON COMPOSITE GRAPHITE ELECTRODE IS DONE BY CYCLIC VOLTAMMETRY (CV) METHOD IN POTENTIAL RANGE OF - 0.2 TO 1 VOLT (VS. AG/AGCL), AT A SCAN RATE 100 MVS-1 IN 1M PHOSPHORIC ACID, INCLUDING EQUAL AMOUNTS OF MOLAR CONCENTRATIONS OF POTASSIUM CHLORIDE (KCL) AND PARA TOLUENE SULFONIC ACID (PTSA) AS SUPPORT ELECTROLYTE. THESE MODIFIED COMPOSITE GRAPHITE ELECTRODE (MCGE) HAVE BEEN CHARACTERIZED USING FOURIER TRANSFORM INFRARED (FTIR), AND SCANNING ELECTRON MICROSCOPY (SEM) TECHNIQUES, RESPECTIVELY. ELECTROCHEMICAL BEHAVIOR OF POLY(PYCO- DNA)/CGE IS INVESTIGATED BY ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS) AND DIFFERENTIAL PULSE VOLTAMMETRY (DPV). EISAPPLIED TO STUDYTHE CONDUCTIVE PROPERTIES MODIFIED ELECTRODE IN 1MM IRON SOLUTION INCLUDING 1 M KCL. SEMICIRCLE DIAMETER OF THE NYQUIST DIAGRAM IS EQUAL TO THE CHARGE TRANSFER RESISTANCE (RCT) AT THE ELECTRODE SURFACE. THE NYQUIST PLOT SHOWS LESS THAN CHARGE TRANSFER RESISTANCE (RCT) OF POLY (PY-CO- DNA)/CGE COMPARE TO BARE CGE (FIG. 1). THE RESULTS SHOWED POLY (PY-CO-DNA)/CGE BE APPLIED TO THE FIELD OF ELECTRONIC AND SENSOR FABRICATION [3].

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APA: Copy

PARSA, ALI, Aliasghari, Maryam, & MAZLOOMIFAR, ALI. (2014). ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY OF POLY (PYRROLE-CO-2,4-DINITROANILINE) MODIFIED COMPOSITE GRAPHITE ELECTRODE. IRANIAN BIENNIAL ELECTROCHEMISTRY SEMINAR. SID. https://sid.ir/paper/911590/en

Vancouver: Copy

PARSA ALI, Aliasghari Maryam, MAZLOOMIFAR ALI. ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY OF POLY (PYRROLE-CO-2,4-DINITROANILINE) MODIFIED COMPOSITE GRAPHITE ELECTRODE. 2014. Available from: https://sid.ir/paper/911590/en

IEEE: Copy

ALI PARSA, Maryam Aliasghari, and ALI MAZLOOMIFAR, “ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY OF POLY (PYRROLE-CO-2,4-DINITROANILINE) MODIFIED COMPOSITE GRAPHITE ELECTRODE,” presented at the IRANIAN BIENNIAL ELECTROCHEMISTRY SEMINAR. 2014, [Online]. Available: https://sid.ir/paper/911590/en

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