The Coupling of Dihydroxybenzene Derivatives to MWCNT and Electrochemical NADH Oxidation

Author:

KOÇAK İzzet1ORCID

Affiliation:

1. ZONGULDAK BÜLENT ECEVİT ÜNİVERSİTESİ

Abstract

3,4 and 2,5- dihydroxybenzene compounds were separately and covalently coupled to the multiwalled carbon nanotube (MWCNT) deposited on the surface of glassy carbon electrode through electrochemical reduction of diazonium compound of benzylamine bearing Boc protecting group (tert-butyloxycarbonyl). Following the removal of the Boc group, an amide bond was formed between the amine-terminated surface and the acyl group of the dihydroxybenzene derivatives. The electrochemical properties of dihydroxybenzene-modified MWCNT and the influence of the sweep rate on the voltammogram were elucidated by cyclic voltammetry (CV). Electron transfer kinetics of modified MWCNT by dihydroxybenzene derivatives was also studied using Laviron’s theory. As evidenced by an improvement in the anodic peak current and a negative shift in the overpotential of NADH oxidation when compared to the bare MWCNT, 3,4 and 2,5- dihydroxybenzene modified MWCNT electrodes were shown to possess catalytic activity toward NADH oxidation.

Publisher

Afyon Kocatepe Universitesi Fen Ve Muhendislik Bilimleri Dergisi

Subject

General Engineering

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