en
Scientific article
English

Electron Hopping between Fe 3 d States in Ethynylferrocene-doped Poly(Methyl Methacrylate)-poly(Decyl Methacrylate) Copolymer Membranes

Published inElectroanalysis, vol. 30, no. 4, p. 596-601
Publication date2018
Abstract

Synchrotron radiation-valence band spectroscopy (SR-VBS) has been utilized in a study of redox molecule valence states implicated in the electron hopping mechanism of ethynylferrocene in unplasticized poly (methyl methacrylate)-poly(decyl methacrylate) [PMMAPDMA] membranes. In this communication, it is revealed that, at high concentrations of ethynylferrocene, there are observable Fe 3d valence states that are likely linked to electron hopping between ferrocene moieties of neighbouring redox molecules. Furthermore, electrochemically induced stratification of ethynylferrocene in an oxidized PMMA-PDMA membrane produces a gradient of Fe 3d states toward the buried interface at the glassy carbon/ PMMA-PDMA membrane enabling electron hopping and electrochemical reactivity of dissolved ethynylferrocene across this buried film.

Keywords
  • Synchrotron radiation valence band spectroscopy
  • Electron hopping
  • Ethynylferrocene
  • Copolymer membrane
Research group
Citation (ISO format)
CUARTERO BOTIA, Maria et al. Electron Hopping between Fe 3 d States in Ethynylferrocene-doped Poly(Methyl Methacrylate)-poly(Decyl Methacrylate) Copolymer Membranes. In: Electroanalysis, 2018, vol. 30, n° 4, p. 596–601. doi: 10.1002/elan.201700510
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal1040-0397
385views
1downloads

Technical informations

Creation10/17/2018 3:03:00 PM
First validation10/17/2018 3:03:00 PM
Update time03/15/2023 8:47:27 AM
Status update03/15/2023 8:47:27 AM
Last indexation01/17/2024 3:48:06 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack