title: Fabrication of Palladium Nanoparticles on Porous Aromatic Frameworks as a Sensing Platform to Detect Vanillin.
abstract: Here, we report the fabrication of palladium nanoparticles on porous aromatic frameworks (Pd/PAF-6) using a facile chemical approach, which was characterized by various spectro- and electrochemical techniques. The differential pulse voltammetry (DPV) response of Pd/PAF-6 toward the vanillin (VA) sensor shows a linear relationship over concentrations (10-820 pM) and a low detection limit (2 pM). Pd/PAF-6 also exhibited good anti-interference performance toward 2-fold excess of ascorbic acid, nitrophenol, glutathione, glucose, uric acid, dopamine, ascorbic acid, 4-nitrophenol, glutathione, glucose, uric acid, dopamine, and 100-fold excess of Na(+), Mg(2+), and K(+) during the detection of VA. The developed electrochemical sensor based on Pd/PAF-6 had good reproducibility, as well as high selectivity and stability. The established sensor revealed that Pd/PAF-6 could be used to detect VA in biscuit and ice cream samples with satisfactory results.
authors.affiliation: Department of Energy and Materials Engineering, Dongguk University-Seoul , Seoul 04620, Republic of Korea.
authors.forename: A T Ezhil
authors.initials: AT
authors.lastname: Vilian
authors.forename: Pillaiyar
authors.initials: P
authors.lastname: Puthiaraj
authors.forename: Cheol Hwan
authors.initials: CH
authors.lastname: Kwak
authors.forename: Seung-Kyu
authors.initials: SK
authors.lastname: Hwang
authors.forename: Yun Suk
authors.initials: YS
authors.lastname: Huh
authors.forename: Wha-Seung
authors.initials: WS
authors.lastname: Ahn
authors.affiliation: Department of Energy and Materials Engineering, Dongguk University-Seoul , Seoul 04620, Republic of Korea.
authors.forename: Young-Kyu
authors.initials: YK
authors.lastname: Han
keywords: electrocatalysis; electrochemical sensors; palladium nanoparticles; porous aromatic frameworks; vanillin