DOI: 10.1002/elan.200703870. Preparation and Characterization of a Lignin Modified Electrode

Preparation and Characterization of a Lignin Modified Electrode

10.1002/elan.200703870

Crossref journal-article

Wiley

Electroanalysis (311)

Abstract

AbstractAlkali lignin undergoes strong adsorption on polycrystalline gold electrodes. Subsequent oxidation in a sulfuric acid solution leads to a restructured redox‐active polymer that shows features characteristic for surface confined species. Surface coverage of up to 4.40×10−10 mol cm−2 may be obtained depending on the adsorption time or lignin concentration in the adsorption solution. Using Laviron's approach the electron‐transfer rate constant and the transfer coefficient were found to be 8.9 s−1 and 0.35, respectively. The formal potential of the redox couple shifted negatively with pH at a rate of ca. 60 mV/pH unit, suggesting a 2 e/2 H+ reaction. The redox couple was also found to be a good mediator for electrochemical ascorbic acid oxidation in neutral phosphate buffer with ca. 250 mV reduction of the oxidation overpotential.

Bibliography

Milczarek, G. (2007). Preparation and Characterization of a Lignin Modified Electrode. Electroanalysis, 19(13), 1411â1414. Portico.

Authors 1

Grzegorz Milczarek (first)

References 25 Referenced 70

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Dates

Type	When
Created	18 years, 2 months ago (June 11, 2007, 10:48 a.m.)
Deposited	1 year, 10 months ago (Oct. 17, 2023, 8:46 p.m.)
Indexed	3 days, 10 hours ago (Aug. 30, 2025, 1:10 p.m.)
Issued	18 years, 2 months ago (June 25, 2007)
Published	18 years, 2 months ago (June 25, 2007)
Published Online	18 years, 2 months ago (June 25, 2007)
Published Print	18 years, 2 months ago (July 1, 2007)

Funders 0

None

BibTeX

@article{Milczarek_2007, title={Preparation and Characterization of a Lignin Modified Electrode}, volume={19}, ISSN={1521-4109}, url={http://dx.doi.org/10.1002/elan.200703870}, DOI={10.1002/elan.200703870}, number={13}, journal={Electroanalysis}, publisher={Wiley}, author={Milczarek, Grzegorz}, year={2007}, month=jun, pages={1411–1414} }

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