|
Type |
Poster Presentation |
Area |
Electrochemistry |
Room No. |
Event Hall |
Time |
4월 20일 (금요일) 11:00~12:30 |
Code |
ELEC.P-615 |
Subject |
Electrochemical sensor for hydrogen peroxide detection based on metal nanoparticles-porous carbon composite |
Authors |
Won-Chul Lee, Yoon Bo Shim* Department of Chemistry, Pusan National University, Korea |
Abstract |
A highly sensitive electrochemical hydrogen peroxide (H2O2) sensor was developed using metal nanoparticles-decorated porous carbon (Me-PC) electrode with a functionalized conductive polymer (TBA). The sensor probe was fabricated by electro-polymerization of TBA using potential cycling method, and then drop casting Me-PC onto the pTBA layer. The characterization of each sensor surface was performed using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS). Experimental parameters were optimized in terms of pH, temperature, applied potential, amounts of Me-PC, and TBA monomer concentration. The proposed sensor exhibited a fast response time < 1s and a calibration plot was obtained in the dynamic range between 0.5 μM and 3.0 mM of H2O2 with a detection limit of 200 nM. |
E-mail |
wclee13@pusan.ac.kr |
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