عنوان	Bifunctional impedimetric sensors based on azodicarboxamide supported on modified graphene nanosheets
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Graphene oxide Gold nanoparticles Azodicarboxamide Cysteine Iodate
چکیده	Herein, gold-coated graphene oxide nanosheets hybrid material (GO/AuNPs) with exceptional physical and chemical properties has been utilized as a novel platform for electrode modification. The synthetic method of GO/AuNPs involves anon-covalent functionalization of exfoliated GO with AuNPs based on the reduction of the Au(III) complex by sodium citrate. The prepared GO/AuNPs hybrid exhibits the dispersion of high density AuNPs which were densely decorated on the large surface area of GO. The GO/AuNPs modified glassy carbon (GC) electrode was employed as a sensing platform to immobilize azodicarboxamide (ACA). The morphology, structure and electrochemical performance of the sensor were characterized by scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results indicate that the modified electrode has a notable bifunctional catalytic activity. Electrocatalytic oxidations of cysteine and electrocatalytic reduction of iodate at the surface of modified electrode were investigated with different technique.
پژوهشگران	ازاده ازادبخت (نفر اول)، محمود روشنی (نفر دوم)، امیررضا عباسی (نفر سوم)، زهره دریکوند (نفر چهارم)، سعید منتی (نفر پنجم)