- Title
- Electrocatalytic detection of l-cysteine using molybdenum POM doped-HKUST-1 metal organic frameworks
- Creator
- Murinzi, Tafadzwa W
- Creator
- Watkins, Gareth M
- Creator
- Shumba, Munyaradzi
- Creator
- Nyokong, Tebello
- Subject
- To be catalogued
- Date Issued
- 2021
- Date
- 2021
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/185748
- Identifier
- vital:44420
- Identifier
- xlink:href="https://doi.org/10.1080/00958972.2021.1907573"
- Description
- Glass carbon electrodes (GCE) were modified with metal organic frameworks (MOFs) containing molybdenum polyoxometallates (Mo POMs) in a copper benzene tricarboxylate framework (HKUST-1). The Mo POMs were introduced via one-pot synthesis (Mo2) and post-synthetic modification (Mo1) techniques. The electrode modifiers were characterized by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermal analysis. The modified electrodes’ oxidation capacity toward L-cysteine was studied. Mo POMs significantly improved electron transfer kinetics compared to the bare GCE. The best Mo POM doped electrode (Mo1-GCE) had a catalytic rate constant of 2.2 × 104 M−1 s−1 and a limit of detection of 3.07 × 10−7 M. Under the employed experimental conditions, the detection response for L-cysteine was very fast (within 0.1 s) for all the modified electrodes and selective toward L-cysteine in the presence of other amino acids.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (19 pages)
- Format
- Publisher
- Taylor and Francis Online
- Language
- English
- Relation
- Journal of Coordination Chemistry
- Relation
- Murinzi, T.W., Watkins, G.M., Shumba, M. and Nyokong, T., 2021. Electrocatalytic detection of l-cysteine using molybdenum POM doped-HKUST-1 metal organic frameworks. Journal of Coordination Chemistry, pp.1-19
- Relation
- Journal of Coordination Chemistry p. 1 2021 1029-0389
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Taylor and Francis Online Terms and Conditions Statement (https://www.tandfonline.com/terms-and-conditions)
- Rights
- Open Access
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Collections
Watkins, Gareth Mostyn (Prof)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
SDG 03. Good Health and Well-Being
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| View Details Download | SOURCE1 | PDF Document | 2 MB | Adobe Acrobat PDF | View Details Download |