Synthesis and characterisation of cobalt hydroxide, cobalt oxyhydroxide and cobalt oxide nanodiscs


Autoria(s): Frost, Ray L.; Yang, Jing; Martens, Wayde N.; Liu, Hongwei
Data(s)

01/01/2010

Resumo

Cobalt hydroxide, cobalt oxyhydroxide and cobalt oxide nanomaterials were synthesized through simple soft chemistry. The cobalt hydroxide displays hexagonal morphology with clear edges 20 nm long. This morphology and nanosize is retained through to cobalt oxide Co3O4 through a topotactical relationship. Cobalt oxyhydroxide and cobalt oxide nanomaterials were synthesized through oxidation and low temperature calcination from the as-prepared cobalt hydroxide. Characterisation of these cobalt-based nanomaterials were fully developed, including X-ray diffraction, transmission electron microscopy combined with selected area electron diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and thermal gravimetric analysis. Bonding of the divalent cobalt hydroxide from the oxyhydroxide and oxides by studying their high resolution XPS spectra for Co 2p3/2 and O 1s. Raman spectroscopy of the as-prepared Co(OH)2, CoO(OH) and Co3O4 nanomaterials characterised each material. The thermal stability of the materials Co(OH)2 and CoO(OH) were established. This research has developed methodology for the synthesis of cobalt oxide and cobalt oxyhydroxide nanodiscs at low temperatures.

Identificador

http://eprints.qut.edu.au/29501/

Publicador

American Chemical Society

Relação

DOI:10.1021/jp908548f

Frost, Ray L., Yang, Jing, Martens, Wayde N., & Liu, Hongwei (2010) Synthesis and characterisation of cobalt hydroxide, cobalt oxyhydroxide and cobalt oxide nanodiscs. The Journal of Physical Chemistry Part C : Nanomaterials and Interfaces, 114(1), pp. 111-119.

Direitos

Copyright © 2010 American Chemical Society.

Fonte

Faculty of Science and Technology

Palavras-Chave #030600 PHYSICAL CHEMISTRY (INCL. STRUCTURAL) #030603 Colloid and Surface Chemistry #030606 Structural Chemistry and Spectroscopy #XRD, Raman, SEM, TEM, XPS, cobalt hydroxide, cobalt oxyhydroxide, cobalt oxide
Tipo

Journal Article