Pyrochlore stannate synthesis: Unlocking temperature's influence on electrochemical detection of caffeic acid in food samples
Issued Date
2024-12-01
Resource Type
eISSN
24685194
Scopus ID
2-s2.0-85208952561
Journal Title
Materials Today Chemistry
Volume
42
Rights Holder(s)
SCOPUS
Bibliographic Citation
Materials Today Chemistry Vol.42 (2024)
Suggested Citation
Muthukutty B., Sivakumar M., Kim S.C., Alagumalai K., Lee D. Pyrochlore stannate synthesis: Unlocking temperature's influence on electrochemical detection of caffeic acid in food samples. Materials Today Chemistry Vol.42 (2024). doi:10.1016/j.mtchem.2024.102402 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/102114
Title
Pyrochlore stannate synthesis: Unlocking temperature's influence on electrochemical detection of caffeic acid in food samples
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Abstract
The annealing temperature in metal oxide synthesis significantly influences material properties, impacting crystal structure, atom arrangement, morphology, and phase formation. Ytterbium stannate (Yb2(Sn2O7)), possessing a pyrochlore structure, was coprecipitated and denoted as YbSnO-X (X = 1 to 5), with annealing temperatures ranging from 400 to 1200 °C. Comprehensive analyses explored YbSnO-X properties for caffeic acid (CA), encompassing crystalline structure, morphology, particle size, thermal behavior, specific surface area, porosity, and sensing characteristics. When applied to a modified glassy carbon electrode, annealed YbSnO-X samples underwent assessment for kinetic parameters, maximum redox current, CA quantity influence, and electrolyte pH impact during voltammetry. The YbSnO-2 modified electrode displayed a 120 nM detection limit, showcasing heightened sensitivity and selectivity across various compounds. An evaluation of authentic CA-containing food samples illustrated superior recovery rates, confirming the effectiveness of optimized YbSnO-2 as an electrode modifier for electrochemical CA detection.