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The Poly(Brilliant Cresyl Blue)/Single-wall Carbon Nanotube Modified Electrode and Its Applications

Author: YangDongWei
Tutor: LiuHuiHong
School: Central China Normal University
Course: Analytical Chemistry
Keywords: Carbon Nanotubes BCB NADH H2O2 Chemically modified electrode Sensor
CLC: TB383.1
Type: Master's thesis
Year: 2009
Downloads: 92
Quote: 0
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Abstract


Carbon nanotubes have unique chemical , electrical and mechanical properties , as a new electrode materials exhibit strong electrocatalytic and sensitizing effect . Carbon nanotubes chemically modified electrodes in recent years has become a hot research . Aza anthracene dyes are common redox dye , applied chemically modified electrodes to promote electron transfer , catalytic electrochemical reaction. This paper studies the BCB functionalized SWNT nanocomposites Electrochemical and Electrocatalytic Properties. Specific work is as follows : 1 ) for the first time with a current - time curve method, preparation of poly BCB / carbon nanotube nanocomposite modified electrode . Compared to the commonly used cyclic voltammetry electric polymerization method, which is more simple, fast and efficient. 2 ) of poly BCB / carbon nanotube modified electrode electrochemical properties , revealing modification component units of the polymer dye molecules coexist with the special structure of monomer units , apply the appropriate components to achieve the NADH and H < sub> 2 O 2 and efficient electrochemical oxidation and reduction, compared to bare glassy carbon electrode can be decreased by the oxidation , reduction overpotential of 610mV and 500mV. 3 ) were first prepared based on poly BCB / Carbon Nanotube Modified Electrodes NADH electrochemical sensor , the method is simple , and there is a linear wide , fast response , high sensitivity, low detection limit, good reproducibility , stability and anti- interference , excellent performance , is expected to be applied dehydrogenases biosensors and bio battery research . 4 ) Based on Poly BCB / carbon nanotube modified electrode , multi- sugar gel immobilized enzyme were prepared ethanol dehydrogenase sensors. The sensor exhibits a high activity, high stability and good reproducibility. 5 ) were first prepared based on poly BCB / Carbon Nanotube Modified Electrodes H 2 O 2 non-enzymatic electrochemical sensors . The method is simple , economical , and have similar biological activity electrochemical sensor linearity , high sensitivity , fast response, good reproducibility , stability and anti-jamming and excellent performance . Results of this study can be applied to biological sensors and fuel cell research .

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CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
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