Ascorbic Acid Assisted Synthesis of Cobalt Oxide Nanostructures, Their Electrochemical Sensing Application for the Sensitive Determination of Hydrazine
2016 (English)In: Journal of Electronic Materials, ISSN 0361-5235, E-ISSN 1543-186X, Vol. 45, no 7, 3695-3701 p.Article in journal (Refereed) PublishedText
This study describes, the synthesis of cobalt oxide nanostructures using ascorbic acid as a growth directing agent by the hydrothermal method. Ascorbic acid is used for the first time for the synthesis of cobalt oxide nanostructures and a unique morphology is prepared in the present study. The cobalt oxide nanostructures were characterized by scanning electron microcopy, x-ray diffraction, and x-ray photoelectron spectroscopy techniques. These analytical techniques demonstrated well defined morphology, good crystalline quality, and high purity of as prepared cobalt oxide nanostructures. The glassy carbon electrode was modified with cobalt oxide nanostructures for the development of a sensitive and selective electrochemical hydrazine sensor. The developed hydrazine sensor exhibits a linear range of 2-24 mu M. The sensitivity and limit of detection of presented hydrazine sensors are 12,734 mu A/mM/cm(2) and 0.1 mu M respectively. The developed hydrazine sensor is highly selective, stable, and reproducible. The proposed sensor is successfully applied for the detection of hydrazine from different water samples. The present study provides the development of an alternative tool for the reliable monitoring of hydrazine from environmental and biological samples.
Place, publisher, year, edition, pages
SPRINGER , 2016. Vol. 45, no 7, 3695-3701 p.
Cobalt oxide nanostructures; ascorbic acid; hydrazine sensor; cyclic voltammetry; amperometric technique
IdentifiersURN: urn:nbn:se:liu:diva-130058DOI: 10.1007/s11664-016-4547-9ISI: 000377434100058OAI: oai:DiVA.org:liu-130058DiVA: diva2:947028
Funding Agencies|Scientific Research Institute at King Saud University through their Research Group Project [RGP-VPP-236]2016-07-062016-07-062016-07-06