Synthesis and Characterization of Iron Oxide Nanoparticles for Phenyl Hydrazine Sensor Applications

This paper reports the simple and facile synthesis, characterization and chemical sensing properties of iron oxide (-Fe2O3) nanoparticles. Iron oxide nanoparticles were synthesized by a simple hydrothermal process and characterized in details of their morphological, structural and compositional properties. The iron oxide nanoparticles were found to be well-crystalline and grown in very high density which were used as efficient electron mediators for the fabrication of highsensitive phenyl hydrazine sensor. The fabricated hydrazine sensor demonstrated a high sensitivity of 57.88 Am M −1 cm −2 with an experimental detection limit of 97 M. The observed linear dynamic range (LDR) for the fabricated sensor was 97 m−1.56 mM. The presented work demonstrates that iron oxide nanoparticles can be used as a potential electron mediator for the fabrication of efficient chemical sensors.

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