Nanoimpacts Reveal the Electron-Transfer Kinetics of the Ferrocene/Ferrocenium Couple Immobilised on Graphene Nanoplatelets

H. Wu; Q. Lin; C. Batchelor-McAuley; R.G. Compton

doi:10.1002/celc.201600296

Nanoimpacts Reveal the Electron-Transfer Kinetics of the Ferrocene/Ferrocenium Couple Immobilised on Graphene Nanoplatelets

H. Wu, Q. Lin, C. Batchelor-McAuley, R.G. Compton^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

Abstract

The big reveal: The kinetics of the ferrocene/ferrocenium (Cp2Fe/Cp2Fe+) redox couple in aqueous solution are evaluated by using the nanoimpacts method. Single graphene nanoplatelets (GNPs) modified with poly(vinylferrocene) are allowed to impact a microelectrode. For the duration (ca. 10–100 ms) of the impacts, the GNP adopts the potential of the electrode and acts as a “chemically modified nanoelectrode”. The study of individual impacts facilitates the resolution of fast electron-transfer kinetics that, for the Cp2Fe/Cp2Fe+ couple, is shown to be at least 3±1 s−1.

Original language	English
Pages (from-to)	1478-1483
Journal	ChemElectroChem
Volume	3
Issue number	9
DOIs	https://doi.org/10.1002/celc.201600296
Publication status	Published - 2016
Externally published	Yes

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10.1002/celc.201600296

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abstract = "The big reveal: The kinetics of the ferrocene/ferrocenium (Cp2Fe/Cp2Fe+) redox couple in aqueous solution are evaluated by using the nanoimpacts method. Single graphene nanoplatelets (GNPs) modified with poly(vinylferrocene) are allowed to impact a microelectrode. For the duration (ca. 10–100 ms) of the impacts, the GNP adopts the potential of the electrode and acts as a “chemically modified nanoelectrode”. The study of individual impacts facilitates the resolution of fast electron-transfer kinetics that, for the Cp2Fe/Cp2Fe+ couple, is shown to be at least 3±1 s−1.",

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AU - Compton, R.G.

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AB - The big reveal: The kinetics of the ferrocene/ferrocenium (Cp2Fe/Cp2Fe+) redox couple in aqueous solution are evaluated by using the nanoimpacts method. Single graphene nanoplatelets (GNPs) modified with poly(vinylferrocene) are allowed to impact a microelectrode. For the duration (ca. 10–100 ms) of the impacts, the GNP adopts the potential of the electrode and acts as a “chemically modified nanoelectrode”. The study of individual impacts facilitates the resolution of fast electron-transfer kinetics that, for the Cp2Fe/Cp2Fe+ couple, is shown to be at least 3±1 s−1.

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Nanoimpacts Reveal the Electron-Transfer Kinetics of the Ferrocene/Ferrocenium Couple Immobilised on Graphene Nanoplatelets

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