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Dispersion of single walled carbon nanotubes. Comparison of different dispersing strategies for preparation of modified electrodes toward hydrogen peroxide detection
Department of Analytical Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden; Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, 812 37 Bratislava, Slovak Republic.
Malmö högskola, Faculty of Health and Society (HS).ORCID iD: 0000-0003-0304-7528
2006 (English)In: Electrochemistry communications, ISSN 1388-2481, E-ISSN 1873-1902, Vol. 8, no 5, p. 899-903Article in journal (Refereed) Published
Abstract [en]

Four different dispersing agents for solubilisation of single walled carbon nanotubes (SWNT) are here compared. Dispersing agents used here can be divided into the group of organic solvents (dimethylformamide and cyclohexanone) and charged polymers (Nafion and chitosan). Charged polymers are more efficient dispersing agents allowing quicker dispersion of nanotubes compared to solvents. Moreover charged polymers offer higher stability of dispersion. Cyclic voltammograms of hydrogen peroxide at SWNT-modified electrodes highly depended on the dispersing agent and dispersion procedure used to disintegrate SWNT aggregates for electrode modification. The best performance for detection of hydrogen peroxide was obtained on a nanotube film cast from a chitosan solution offering a quick dispersion and high dispersion stability as well as high sensitivity of detection and mechanical stability of the nanotube film.

Place, publisher, year, edition, pages
2006. Vol. 8, no 5, p. 899-903
Keywords [en]
Carbon nanotube, Dispersion
National Category
Analytical Chemistry
Identifiers
URN: urn:nbn:se:mau:diva-14586DOI: 10.1016/j.elecom.2006.03.028ISI: 000237776300040Scopus ID: 2-s2.0-33646489445Local ID: 3291OAI: oai:DiVA.org:mau-14586DiVA, id: diva2:1418107
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-05-06Bibliographically approved

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Ruzgas, Tautgirdas

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