CNT Modified Coatings for Glucose Sensing

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Partovi, Parisa | 2013

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Type of Document: M.Sc. Thesis
Language: English
Document No: 44260 (56)
University: Sharif University of Technology
Department: Science and Engineering
Advisor(s): Dolati, Abolghasem
Abstract:
This research describes a new and relatively general method to grow well-aligned carbon nanotubes (CNTs) on cobalt-deposited stainless steel by thermal chemical vapor deposition (CVD) of ethylenediamine precursor. The CNTs are vertically aligned at high density over large areas on the surface. Different effective parameters in growth of carbon nanotubes, as type of substrate, surface treatment, temperature of growth , feeding carbon supplies have been studied. Finally, aligned carbon nanotubes have been prepared by 100-150 nm diameter and 9µ length. CoOx•nH2O–MWCNTs nanocomposites were successfully synthesized, using a cathodic electrochemical reduction of H2O2 to deposit cobalt oxide/hydroxide nanostructures onto vertically well-aligned MWCNTs arrays. Electrocatalytic reaction of Glc was investigated with both voltammetric and amperometric methods. The nanocomposite electrode exhibited a significantly higher current response than unmodified MWCNTs electrode
Keywords:
Vertically Aligned Carbon Nanotubes ; Cobalt Oxide/Hydroxide ; Glucose Sensor

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