The electrochemical behaviour of ferrocene in deep eutectic solvents based on quaternary ammonium and phosphonium salts

Bahadori, L. and Manan, N.S. and Chakrabarti, M.H. and Hashim, M.A. and Mjalli, F.S. and AlNashef, I.M. and Hussain, Mohd Azlan and Low, C.T. (2013) The electrochemical behaviour of ferrocene in deep eutectic solvents based on quaternary ammonium and phosphonium salts. Physical Chemistry Chemical Physics, 15 (5). pp. 1707-1714. ISSN 1463-9076

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Official URL: https://doi.org/10.1039/c2cp43077k

Abstract

The electrochemical behaviour of ferrocene (Fc) is investigated in six different deep eutectic solvents (DESs) formed by means of hydrogen bonding between selected ammonium and phosphonium salts with glycerol and ethylene glycol. Combinations of cyclic voltammetry and chronoamperometry are employed to characterise the DESs. The reductive and oxidative potential limits are reported versus the Fc/Fc+ couple. The diffusion coefficient, D, of ferrocene in all studied DESs is found to lie between 8.49 × 10 -10 and 4.22 × 10-8 cm2 s-1 (these do not change significantly with concentration). The standard rate constant for heterogeneous electron transfer across the electrode/DES interface is determined to be between 1.68 × 10-4 and 5.44 × 10-4 cm s-1 using cyclic voltammetry. These results are of the same order of magnitude as those reported for other ionic liquids in the literature.

Item Type: Article
Additional Information: Bahadori, Laleh Manan, Ninie Suhana Abdul Chakrabarti, Mohammed Harun Hashim, Mohd Ali Mjalli, Farouq Sabri AlNashef, Inas Muen Hussain, Mohd Azlan Low, Chee Tong John eng England 2012/12/19 06:00 Phys Chem Chem Phys. 2013 Feb 7;15(5):1707-14. doi: 10.1039/c2cp43077k.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 10 Jul 2013 00:39
Last Modified: 04 Mar 2020 06:28
URI: http://eprints.um.edu.my/id/eprint/6980

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