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The electrochemical behaviour of ferrocene in deep eutectic solvents based on quaternary ammonium and phosphonium salts
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Bahadori, Laleh, Manan, Ninie Suhana Abdul, Chakrabarti, Mohammed Harun, Hashim, Mohd. Ali,, Mjalli, Farouq Sabri, AINashef, Inas Muen, Hussain, Mohd. Azlan and Low, John 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. doi:10.1039/c2cp43077k ISSN 1463-9084.
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Official URL: http://www.dx.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: | Journal Article | ||||||||||||
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Subjects: | Q Science > QD Chemistry | ||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||||
Library of Congress Subject Headings (LCSH): | Ferrocene, Eutectics, Quaternary ammonium salts | ||||||||||||
Journal or Publication Title: | Physical Chemistry Chemical Physics | ||||||||||||
Publisher: | Royal Society of Chemistry | ||||||||||||
ISSN: | 1463-9084 | ||||||||||||
Official Date: | 2013 | ||||||||||||
Dates: |
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Volume: | 15 | ||||||||||||
Number: | 5 | ||||||||||||
Page Range: | pp. 1707-1714 | ||||||||||||
DOI: | 10.1039/c2cp43077k | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||
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