Preparation of Cobalt Oxide/Zinc Oxide Nanocomposite

Authors

A. Esmaielzadeh Kandjani Applied Science, RMIT - RMIT University

L. Nikzad Research Center of Advanced Materials, Merc

M.R. Vaezi Nanotechnology and Advanced Materials Department, Material and Energy Research Center(MERC)

S. Alibeigi materials department, KNTU

Abstract:

Cobalt Oxide/ Zinc Oxide nanocomposite was synthesized by dropwise addition ofCo(NO)3.6H2O and Zn(NO3)2.4H2O solutions to KOH solution at different temperatures followed bycalcination at 300ºC for 4 h. The morphology and structure of nanoparticles and the influence oftemperature on particle size were studied using scanning electron microscopy (SEM) and X-RayDiffraction (XRD). Minimum particle size was obtained before calcination at 70ºC. In addition, thespherical, semispherical and flake-shaped nanoparticles were observed at ambient temperature. Onthe other hand, Co(OH)2 was transformed to Co3O4, ZnO flakes were eliminated, and particle sizechanged during calcination. Synthesized samples at 50ºC and 70ºC showed an increase size aftercalcinations; however, elimination of flakes during calcination caused particle size reduction forsynthesized sample at ambient temperature.

Upgrade to premium to download articles

Already have an account?login

similar resources

Solution-Chemical Synthesis of Cobalt and Iron:Zinc Oxide Nanocomposite Films

Lagerqvist, U. 2016. Solution-Chemical Synthesis of Cobalt and Iron:Zinc Oxide Nanocomposite Films. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1356. 85 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9520-6. The potentially most important challenges today are related to energy and the environment. New materials and methods ar...

full text

Preparation and Catalytic Study on a Novel Amino-functionalized Silica-coated Cobalt Oxide Nanocomposite for the Synthesis of Some Indazoles.

In this research an efficient synthesis of a novel nanocomposite including SiO2@(3-aminopropyl)triethoxysilane-coated cobalt oxide (Co3O4) nanocomposite has been reported by three step method. The structure and magnetic characterization of Co3O4@SiO2@NH2 have been done by using various spectroscopic analyses which include FT-IR, X-ray powder diffraction, scanning electron microscopy, transmissi...

full text

Amperometric Determination of Ascorbic Acid in Pharmaceutical Formulations by a Reduced Graphene Oxide-cobalt Hexacyanoferrate Nanocomposite

Investigation of the redox properties of drugs and their determination are performed by electrochemical techniques. Data obtained from electrochemical techniques are often correlated with molecular structure and pharmacological activity of drugs. In this regard, different modified electrodes were applied as sensors for quantification of different drugs.A nanocomposite of reduced graphene oxide-...

full text

Amperometric Determination of Ascorbic Acid in Pharmaceutical Formulations by a Reduced Graphene Oxide-cobalt Hexacyanoferrate Nanocomposite

full text

Preparation of Pectin–ZnO Nanocomposite

Pectin-ZnO nanocomposite was prepared in the aqueous solution condition at room temperature. The Fourier transform infrared, X-ray diffraction, and transmission electron microscope (TEM) measurements confirmed the nanoscaled structure of pectin-ZnO composite. According to the TEM observation, the average composite granules size was about 150 nm and the embedded ZnO nanoparticles were uniform wi...

full text

Amperometric Determination of Ascorbic Acid in Pharmaceutical Formulations by a Reduced Graphene Oxide-cobalt Hexacyanoferrate Nanocomposite

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}

Journal title

International Journal of Engineering

volume 23 issue 2

pages 133- 138

publication date 2010-05-01

unfollow

{@ msg @}

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

Hosted on Doprax cloud platform doprax.com