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

Laleh Bahadori, Ninie Suhana Abdul Manan, Mohammed Harun Chakrabarti, Mohd Ali Hashim, Farouq Sabri Mjalli, Inas Muen Alnashef, Mohd Azlan Hussain, Chee Tong John Low

Research output: Contribution to journalArticle

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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.

Original languageEnglish
Pages (from-to)1707-1714
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume15
Issue number5
DOIs
Publication statusPublished - Feb 7 2013

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Ammonium Compounds
eutectics
Eutectics
Salts
salts
Cyclic voltammetry
Ionic Liquids
Chronoamperometry
Ethylene Glycol
glycerols
Glycerol
glycols
Rate constants
Hydrogen bonds
electron transfer
ethylene
diffusion coefficient
Electrodes
electrodes
ferrocene

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Cite this

The electrochemical behaviour of ferrocene in deep eutectic solvents based on quaternary ammonium and phosphonium salts. / Bahadori, Laleh; Abdul Manan, Ninie Suhana; Chakrabarti, Mohammed Harun; Hashim, Mohd Ali; Mjalli, Farouq Sabri; Alnashef, Inas Muen; Hussain, Mohd Azlan; Low, Chee Tong John.

In: Physical Chemistry Chemical Physics, Vol. 15, No. 5, 07.02.2013, p. 1707-1714.

Research output: Contribution to journalArticle

Bahadori, L, Abdul Manan, NS, Chakrabarti, MH, Hashim, MA, Mjalli, FS, Alnashef, IM, Hussain, MA & Low, CTJ 2013, 'The electrochemical behaviour of ferrocene in deep eutectic solvents based on quaternary ammonium and phosphonium salts', Physical Chemistry Chemical Physics, vol. 15, no. 5, pp. 1707-1714. https://doi.org/10.1039/c2cp43077k
Bahadori, Laleh ; Abdul Manan, Ninie Suhana ; Chakrabarti, Mohammed Harun ; Hashim, Mohd Ali ; Mjalli, Farouq Sabri ; Alnashef, Inas Muen ; Hussain, Mohd Azlan ; Low, Chee Tong John. / The electrochemical behaviour of ferrocene in deep eutectic solvents based on quaternary ammonium and phosphonium salts. In: Physical Chemistry Chemical Physics. 2013 ; Vol. 15, No. 5. pp. 1707-1714.
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