Muthukutty B.Sivakumar M.Kim S.C.Alagumalai K.Lee D.Mahidol University2024-11-222024-11-222024-12-01Materials Today Chemistry Vol.42 (2024)https://repository.li.mahidol.ac.th/handle/20.500.14594/102114The 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.Materials ScienceChemical EngineeringArticleSCOPUS10.1016/j.mtchem.2024.1024022-s2.0-8520895256124685194