Decamethylferrocene Oxidation at Interdigitated Microband Array Electrodes in the Absence of Intentionally Added Supporting Electrolyte: Experiment versus Finite Element Model

Tingran Liu; Katarzyna Dusilo; Evaldo Batista Carneiro Neto; Marcin Opallo; Ernesto C. Pereira; James Taylor; Frank Marken

doi:10.1007/s44373-025-00032-y

Decamethylferrocene Oxidation at Interdigitated Microband Array Electrodes in the Absence of Intentionally Added Supporting Electrolyte: Experiment versus Finite Element Model

Tingran Liu
, Katarzyna Dusilo
, Evaldo Batista Carneiro Neto
, Marcin Opallo
, Ernesto C. Pereira
, James Taylor
, Frank Marken

Universidade Federal de São Carlos
Polish Academy of Sciences
Cardinal Wyszynski University in Warsaw

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

Abstract

The one-electron oxidation of decamethylferrocene (FeCp*2) in the absence of added supporting electrolyte is investigated as a model redox system in acetonitrile to shed new light onto (i) the effect of added supporting electrolyte and (ii) the impact of using two-electrode versus three-electrode configurations for interdigitated array electrodes. Electrochemical processes at interdigitated microband array electrodes (anode and cathode each 250 platinum bands, 5 m width, 5 m gap) are investigated with the aim to explore self-supported processes for electrosynthesis in the absence of added supporting electrolyte. Two types of steady state and the corresponding time to steady state are discussed. When working without added supporting electrolyte, finite element theory predicts current doubling and a marked change in concentration profiles. Implications for electrosynthesis at interdigitated microband electrodes are summarised.

Original language	English
Article number	17
Journal	Discover Electrochemistry
Volume	2
Early online date	19 May 2025
DOIs	https://doi.org/10.1007/s44373-025-00032-y
Publication status	E-pub ahead of print - 19 May 2025

Data Availability Statement

Data are provided within the manuscript and supplementary information file.

Funding

T.L. thanks for China Scholarship Council (CSC) support. E.B.C.N. and E.P. acknowledge the support from FAPESP (São Paulo Research Foundation, Grant Numbers 2013/07296-2, 2017/11986-5, 2021/03592-2, 2022/06229-9), Shell, and the strategic importance of the support given by ANP (Brazil’s National Oil, Natural Gas and Biofuels Agency) through the R&D levy regulation, CNPq (Grant Number 407878/2022), and CAPES (Code 001). K.D. thanks the Polish National Agency for Academic Exchange project "STER", No. BPI/STE/2021/ 1/00034/U/00001. F.M. thanks for the initial financial support by the EPSRC (EP/K004956/1).

Funders	Funder number
Engineering and Physical Sciences Research Council	EP/K004956/1

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10.1007/s44373-025-00032-yLicence: CC BY

Applying Long-Lived Metastable States in Switchable Functionality via Kinetic Control of Molecular Assembly
Raithby, P. (PI), Burrows, A. (CoI), Lewis, D. (CoI), Marken, F. (CoI), Parker, S. (CoI), Walsh, A. (CoI) & Wilson, C. (CoI)
Engineering and Physical Sciences Research Council
1/11/12 → 30/04/18
Project: Research council

Cite this

Liu, T., Dusilo, K., Batista Carneiro Neto, E., Opallo, M., Pereira, E. C., Taylor, J., & Marken, F. (2025). Decamethylferrocene Oxidation at Interdigitated Microband Array Electrodes in the Absence of Intentionally Added Supporting Electrolyte: Experiment versus Finite Element Model. Discover Electrochemistry, 2, Article 17. Advance online publication. https://doi.org/10.1007/s44373-025-00032-y

Decamethylferrocene Oxidation at Interdigitated Microband Array Electrodes in the Absence of Intentionally Added Supporting Electrolyte: Experiment versus Finite Element Model. / Liu, Tingran; Dusilo, Katarzyna; Batista Carneiro Neto, Evaldo et al.
In: Discover Electrochemistry, Vol. 2, 17, 19.05.2025.

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

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Decamethylferrocene Oxidation at Interdigitated Microband Array Electrodes in the Absence of Intentionally Added Supporting Electrolyte: Experiment versus Finite Element Model

Abstract

Data Availability Statement

Funding

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Applying Long-Lived Metastable States in Switchable Functionality via Kinetic Control of Molecular Assembly

Cite this