NDLI: Electrooxidation of hydrazine in alkaline medium at carbon paste electrode decorated with poly(P-phenylendiamine/ZnO) nanocomposite

Content Provider	Springer Nature Link
Author	Rostami, Hussein Omrani, Abdollah Rostami, Abbas Ali Emamgholizadeh, Abbas
Copyright Year	2014
Abstract	In this study, poly(P-phenylenediamine/ZnO) (PpPD/ZnO) nanocomposite (NC) under ultrasonic conditions was synthesized and characterized. The presence of zinc oxide nanoparticles changed the morphology of PpPD considerably as confirmed by SEM observations. Hydrazine electrooxidation at novel modified carbon paste electrodes (CPE) with supported NC was investigated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometry (CA) techniques. Obtained results showed that the NC increases the surface catalytic activity of CPE toward hydrazine electrooxidation. The electrocatalytic current density increased linearly with hydrazine concentration, and the detection limit and sensitivity are determined to be 24 μM and 0.172 mA cm$^{−2}$ mM$^{−1}$, respectively. As revealed by the EIS measurements, the increased conductivity and decreased R $_{ct}$ are owing to the presence of ZnO NPs in the PpPD matrix. The CA results indicated that hydrazine electrooxidation results in higher steady-state current density on CPE/PpDP/ZnO electrode system compared to the CPE/PpDP and CPE electrodes.
Starting Page	1073
Ending Page	1080
Page Count	8
File Format	PDF
ISSN	09477047
Journal	Ionics
Volume Number	21
Issue Number	4
e-ISSN	18620760
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-10-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Carbon paste electrode Poly(P-phenylendiamine/ZnO) nanocomposite Hydrazine electrooxidation Electrocatalyst Electrochemistry Renewable and Green Energy Optical and Electronic Materials Condensed Matter Physics Energy Storage
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering Materials Science Chemical Engineering

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