Preparation of Silicon Oxycarbide (SiCO) Ceramics from Different Polymer Architectures and Assessment on the Performance as Electrodic Materials for Voltammetric Sensing of Antioxidant Phenolic Compounds
Silicon oxycarbide (SiCO) ceramics obtained from polymer pyrolysis and with varied carbon contents were prepared and evaluated as new electrodic materials for sensing of tert butylhydroquinone (TBHQ) and butylated hydroxyanisole (BHA) antioxidants. Three polymers were synthesized varying molecular architecture and aromatic carbon groups, followed by pyrolysis at 1000 and 1500 °C to obtain SiCO ceramics. Graphitization and crystallization processes were evidenced, in different extent, according to precursor chemistry. SiCO at 1500 °C with intermediary carbon content provided slight improvement in the peak anodic separation of TBHQ and BHA and higher peak current compared with glassy carbon electrode (GCE). Higher acidic sites concentration together with more ordered residual carbon phase produced in situ contributed to great electrochemical performance of SiCO towards phenolic compounds detection. Therefore, the ceramic herein prepared exhibits highly efficient features as a new SiCO composited electrode for simultaneous determination of antioxidant phenolic compounds bearing in mind further analytical applications.
Main Authors: | Silva,Lívia R. C., Silva,Maria A., Silva,Paulo Rogério C. da, Tarley,César Ricardo T., Segatelli,Mariana G. |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Química
2022
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532022001201469 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Study of Crystallization and Composition on Silicon Oxycarbide (SiOC) and Silicon Boron Oxycarbide (SiBOC) Ceramics Obtained from Alkoxysilanes Precursors
by: Segatelli,Mariana G, et al.
Published: (2021) -
Voltammetric characterization of grafted polymer electrode self modification with carbon nanotubes (GPESMCNT)
by: Radhia,Muhammed M., et al.
Published: (2016) -
Screen-Printed Electrodes for the Voltammetric Sensing of Benzotriazoles in Water
by: Muschietti, Alessandra, et al.
Published: (2020-03-26) -
Voltammetric Reduction Behavior and Electrode Kinetics
by: Balaji,K., et al.
Published: (2011) -
Voltammetric Behaviour of Metronidazole at Mercury Electrodes
by: La-Scalea,Mauro A., et al.
Published: (1999)