Amperometric detection of hydrazine utilizing synergistic action of prussian blue @ silver nanoparticles / graphite felt modified electrode

Jihua Zhao (1) , Jianxin Liu (1) , Simon Tricard (2) , Lei Wang (1) , Yanling Liang (1) , Linghua Cao (1) , Jian Fang (1) , Weiguo Shen (3, 1)

1 Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
2 LPCNO - Laboratoire de physique et chimie des nano-objets
3 School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University

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.

Mots clés: Prussian Blue; Silver nanoparticles; Graphite Felt; Hydrazine

Domaines: Physique [physics]

Jihua Zhao, Jianxin Liu, Simon Tricard, Lei Wang, Yanling Liang, et al.. Amperometric detection of hydrazine utilizing synergistic action of prussian blue @ silver nanoparticles / graphite felt modified electrode. Electrochimica Acta, 2015, 171, pp.121-127. ⟨10.1016/j.electacta.2015.05.027⟩. ⟨hal-02132951⟩