Amperometric detection of hydrazine utilizing synergistic action of prussian blue @ silver nanoparticles / graphite felt modified electrode. (20th July 2015)

• Record Type: Journal Article
• Authors: Zhao, Jihua; Liu, Jianxin; Tricard, Simon; Wang, Lei; Liang, Yanling; Cao, Linghua; Fang, Jian; Shen, Weiguo
• Is Part Of: Electrochimica acta. Volume 171(2015)
• Page Start: 121
• Page End: 127
• Publication Date: 2015-07-20
• Subjects: Prussian Blue -- Silver nanoparticles -- Graphite Felt -- Hydrazine; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.05.027
• Languages: English
• ISSNs: 0013-4686

Abstract

Highlights: Prussian Blue (PB) deposition on Ag/GF for electrochemical hydrazine sensing; Lower detection limit of 4.9 × 10 −7 mol L −1, stable over 24 days; High sensitivity: 26.06 A mol −1 L. Abstract: In this study, a triple-component hydrazine sensor (PB@Ag/GF) was fabricated with freestanding graphite felt (GF), silver nanoparticles (Ag) and prussian blue (PB). The Ag nanoparticles were electrodeposited on GF ultrasonically (Ag/GF), and acted as a catalyst of the chemical deposition of PB. The electrode was characterized by scanning election microscopy (SEM), infrared spectroscopy (IR), X-ray diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS). The electrochemical behavior of PB@Ag/GF was measured by cyclic voltammetry and amperometric measurements. The sensor displayed a prominent electrocatalytic activity toward hydrazine oxidation, with a fast response time of 2 s, a low detection limit of 4.9 × 10 −7 mol L −1 and very high detection sensitivity of 26.06 A mol −1 L.