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ToolsWildgoose, Gregory G., Leventis, Henry C., Streeter, Ian, Lawrence, Nathan S., Wilkins, Shelley J., Jiang, Li, Jones, Timothy G. J. and Compton, Richard G. (2004) Abrasively immobilised multiwalled carbon nanotube agglomerates: A novel electrode material approach for the analytical sensing of pH. ChemPhysChem, 5 (5). pp. 669-677.
Full text not available from this repository.Abstract
Agglomerates of multiwalled carbon nanotubes (MWCNTs) can be formed in which the binder in the agglomerate is itself a redox active mol. solid. Two sep. agglomerates were formed by dissolving 9,10-phenanthraquinone (PAQ) or 1,2-naphthaquinone (NQ) in acetone together with MWCNTs and adding an excess of aq. soln. to cause pptn. of agglomerates, ~10 µm in dimension, which consist of bundles of nanotubes running into and throughout the amorphous mol. solid that binds the agglomerate together. The nature of this structure, when immobilized on a substrate electrode and in contact with aq. electrolyte solns. gives rise to many three-phase boundaries, electrolyte|agglomerate|conductor, which is advantageous to the solid state anal. electrochem. of such a material as it imparts a larger electroactive surface area than other modified carbon electrodes. The two agglomerates each gave a voltammetrically measurable response to changes in pH; when abrasively immobilized on a basal plane pyrolytic graphite electrode a plot of peak potential against pH produced a linear response for both MWCNT-PAQ and MWCNT-NQ agglomerates over the pH range pH 1-12 and over the temp. range 20-70 C. [on SciFinder(R)]
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ph electrode abrasively immobilized multiwalled carbon nanotube agglomerate |
| Faculty \ School: | Faculty of Science > School of Chemistry |
| UEA Research Groups: | Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017) Faculty of Science > Research Groups > Synthetic Chemistry (former - to 2017) |
| Depositing User: | Rachel Smith |
| Date Deposited: | 23 Jun 2011 14:48 |
| Last Modified: | 24 Oct 2022 02:49 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/32993 |
| DOI: | 10.1002/cphc.200400030 |
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