The electrochemical characterisation of graphite felts

Hdl Handle:
http://hdl.handle.net/10034/550052
Title:
The electrochemical characterisation of graphite felts
Authors:
Smith, Robert E. G.; Davies, Trevor J.; Baynes, Nicholas de B.; Nichols, Richard J.
Abstract:
With the increasing demand for advanced energy storage, redox flow batteries (RFBs) are a rapidly growing market and research area. Carbon fibre based materials like graphite felts (GFs) are commonly used in RFBs as electrodes due to their electrochemical activity, high permeability for liquids, high surface area and relatively low cost. Previous characterisation of GFs has involved flow systems, which can be complicated to replicate and expensive. Using pre-treatment techniques to ensure sufficient wetting, GFs can be used effectively in quiescent electrochemistry. By combining the experimental voltammograms with digital simulations, key properties such as capacitance, electrode kinetics, average pore size and electrochemical surface area can be determined. This allows for the rapid and low cost examination of multiple GFs and pre-treatment methods, providing a useful tool for RFB development. In addition, the GF electrodes used in the study show promising limit of detection values, with initial experiments suggesting these electrodes may have applications in electroanalysis.
Affiliation:
University of Liverpool ; University of Chester/ACAL Energy Limited ; ACAL Energy Limited ; University of Liverpool
Citation:
The electrochemical characterisation of graphite felts, Journal of Electroanalytical Chemistry, 2015, 747, pp. 29-38
Publisher:
Elsevier
Journal:
Journal of Electroanalytical Chemistry
Publication Date:
25-Mar-2015
URI:
http://hdl.handle.net/10034/550052
DOI:
10.1016/j.jelechem.2015.03.029
Additional Links:
http://www.journals.elsevier.com/journal-of-electroanalytical-chemistry/; http://www.sciencedirect.com/science/article/pii/S1572665715001460
Type:
Article
Language:
en
Description:
NOTICE: this is the authors' version of a work that was accepted for publication in Journal of Electroanalytical Chemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Electroanalytical Chemistry, 747, 2015, doi: 10.1016/j.jelechem.2015.03.029
ISSN:
1572-6657
Appears in Collections:
Natural Sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorSmith, Robert E. G.en
dc.contributor.authorDavies, Trevor J.en
dc.contributor.authorBaynes, Nicholas de B.en
dc.contributor.authorNichols, Richard J.en
dc.date.accessioned2015-04-14T10:26:54Zen
dc.date.available2015-04-14T10:26:54Zen
dc.date.issued2015-03-25en
dc.identifier.citationThe electrochemical characterisation of graphite felts, Journal of Electroanalytical Chemistry, 2015, 747, pp. 29-38en
dc.identifier.issn1572-6657en
dc.identifier.doi10.1016/j.jelechem.2015.03.029en
dc.identifier.urihttp://hdl.handle.net/10034/550052en
dc.descriptionNOTICE: this is the authors' version of a work that was accepted for publication in Journal of Electroanalytical Chemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Electroanalytical Chemistry, 747, 2015, doi: 10.1016/j.jelechem.2015.03.029en
dc.description.abstractWith the increasing demand for advanced energy storage, redox flow batteries (RFBs) are a rapidly growing market and research area. Carbon fibre based materials like graphite felts (GFs) are commonly used in RFBs as electrodes due to their electrochemical activity, high permeability for liquids, high surface area and relatively low cost. Previous characterisation of GFs has involved flow systems, which can be complicated to replicate and expensive. Using pre-treatment techniques to ensure sufficient wetting, GFs can be used effectively in quiescent electrochemistry. By combining the experimental voltammograms with digital simulations, key properties such as capacitance, electrode kinetics, average pore size and electrochemical surface area can be determined. This allows for the rapid and low cost examination of multiple GFs and pre-treatment methods, providing a useful tool for RFB development. In addition, the GF electrodes used in the study show promising limit of detection values, with initial experiments suggesting these electrodes may have applications in electroanalysis.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://www.journals.elsevier.com/journal-of-electroanalytical-chemistry/en
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S1572665715001460en
dc.rightsArchived with thanks to Journal of Electroanalytical Chemistryen
dc.subjectgraphite felten
dc.subjectelectrodeen
dc.subjectcarbon electrochemistryen
dc.subjectcyclic voltammetryen
dc.titleThe electrochemical characterisation of graphite feltsen
dc.typeArticleen
dc.contributor.departmentUniversity of Liverpool ; University of Chester/ACAL Energy Limited ; ACAL Energy Limited ; University of Liverpoolen
dc.identifier.journalJournal of Electroanalytical Chemistryen
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