Electrocatalytic oxidation of NADH at carbon paste electrodes modified with Meldola Blue adsorbed on zirconium phosphate: effect of Ca2+ and polyethyleneimine
(2005) In Journal of Solid State Electrochemistry 9(5). p.296-303- Abstract
- The basic electrochemistry of carbon paste electrodes modified with Meldola Blue adsorbed on zirconium phosphate (MB-ZP-CPEs) and their ability to oxidize NADH have been investigated. Three types of carbon powder (graphite and glassy carbon-type Sigradur K and G) were used to obtain MB-ZP-CPEs. On comparing cyclic voltammograms recorded at MB-ZP-CPEs, similarly prepared from the three different carbon powders, those made with Sigradur K exhibited the lowest background current, and the best MB electrochemistry, seen as the highest peak intensities and smallest peak separation. Using MB-ZP-CPEs based on Sigradur K a study on NADH oxidation was done focusing on the effect of the Ca2+ concentration in the contacting solution and on the... (More)
- The basic electrochemistry of carbon paste electrodes modified with Meldola Blue adsorbed on zirconium phosphate (MB-ZP-CPEs) and their ability to oxidize NADH have been investigated. Three types of carbon powder (graphite and glassy carbon-type Sigradur K and G) were used to obtain MB-ZP-CPEs. On comparing cyclic voltammograms recorded at MB-ZP-CPEs, similarly prepared from the three different carbon powders, those made with Sigradur K exhibited the lowest background current, and the best MB electrochemistry, seen as the highest peak intensities and smallest peak separation. Using MB-ZP-CPEs based on Sigradur K a study on NADH oxidation was done focusing on the effect of the Ca2+ concentration in the contacting solution and on the addition of polyethyleneimine (PEI) into the paste. It can be stated that MB-ZP-CPEs based on Sigradur K and containing 1.23% (w/w) PEI exhibited the best behavior for NADH oxidation, measured by the highest electrocatalytic rate constant (8.2 x 10(3) M-1 s(-1)). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/151038
- author
- Ladiu, Ioana LU ; Popescu, IC and Gorton, Lo LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Solid State Electrochemistry
- volume
- 9
- issue
- 5
- pages
- 296 - 303
- publisher
- Springer
- external identifiers
-
- wos:000229504200009
- scopus:21144435869
- ISSN
- 1433-0768
- DOI
- 10.1007/s10008-004-0618-6
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)
- id
- 7ef57d37-d36d-4eab-a824-91e4229f1a9c (old id 151038)
- date added to LUP
- 2016-04-01 11:39:25
- date last changed
- 2022-01-26 08:16:51
@article{7ef57d37-d36d-4eab-a824-91e4229f1a9c, abstract = {{The basic electrochemistry of carbon paste electrodes modified with Meldola Blue adsorbed on zirconium phosphate (MB-ZP-CPEs) and their ability to oxidize NADH have been investigated. Three types of carbon powder (graphite and glassy carbon-type Sigradur K and G) were used to obtain MB-ZP-CPEs. On comparing cyclic voltammograms recorded at MB-ZP-CPEs, similarly prepared from the three different carbon powders, those made with Sigradur K exhibited the lowest background current, and the best MB electrochemistry, seen as the highest peak intensities and smallest peak separation. Using MB-ZP-CPEs based on Sigradur K a study on NADH oxidation was done focusing on the effect of the Ca2+ concentration in the contacting solution and on the addition of polyethyleneimine (PEI) into the paste. It can be stated that MB-ZP-CPEs based on Sigradur K and containing 1.23% (w/w) PEI exhibited the best behavior for NADH oxidation, measured by the highest electrocatalytic rate constant (8.2 x 10(3) M-1 s(-1)).}}, author = {{Ladiu, Ioana and Popescu, IC and Gorton, Lo}}, issn = {{1433-0768}}, language = {{eng}}, number = {{5}}, pages = {{296--303}}, publisher = {{Springer}}, series = {{Journal of Solid State Electrochemistry}}, title = {{Electrocatalytic oxidation of NADH at carbon paste electrodes modified with Meldola Blue adsorbed on zirconium phosphate: effect of Ca2+ and polyethyleneimine}}, url = {{http://dx.doi.org/10.1007/s10008-004-0618-6}}, doi = {{10.1007/s10008-004-0618-6}}, volume = {{9}}, year = {{2005}}, }