RT journal article
T1 FAST MICROWAVE ASSISTED FUNCTIONALIZATION OF CARBON NANOFIBERS: A PROMISING ELECTROCHEMICAL SENSING PLATFORM FOR ELECTROACTIVE ANALYTES
A1 Berni, Achraf
A1 Amine, Aziz
A1 García Guzmán, Juan José
A1 Palacios Santander, José María
A1 Cubillana Aguilera, Laura
A2 Química Analítica
K1 Microwave treatment
K1 Carbon nanofibers
K1 Acid functionalization
K1 Electroanalytical performances
K1 Electroactive molecules
K1 Screen-printed electrodes
AB This research introduces a novel approach for swiftly enhancing the electrochemical sensing capabilities of commercial screen-printed carbon electrodes through a rapid acid microwave-assisted functionalization of carbon nanofibers (f-CNFMW). A comparative analysis with the conventional refluxed system functionalization method (f-CNFRefluxed) was conducted to assess the electrochemical performance of the newly developed f-CNFMW. The voltametric study showed that f-CNF-MW significantly enhanced the electron transfer rate when testing common phenolic compounds such as hydroquinone, paracetamol, and caffeic acid. Moreover, the anodic oxidation potential for the majority of irreversible analytes was negatively shifted, indicating the high electro-catalytic activity of f-CNF-MW gained after this treatment, making it analytically useful for the electro-oxidation of some molecules that require high overpotential, mainly for purine bases and nitrite. Additionally, the developed f-CNF-MW exhibited remarkable resistance to fouling phenomena when exposed to bisphenol A and tryptophan, underscoring its potential for real-world applications. To sum up, this study highlights the potential of rapid microwave treatment in producing f-CNF-MW as a promising electrochemical nanomaterial, resulting in substantial improvements in electro-analytical capabilities compared to conventional methodologies.
PB Elsevier B.V.
SN 1572-6657
YR 2024
FD 2024
LK http://hdl.handle.net/10498/33710
UL http://hdl.handle.net/10498/33710
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-nov-2026