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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/6301

Title: Hydrolysis of tetravalent cerium for a simple route to nanocrystalline cerium dioxide: an in situ spectroscopic study of nanocrystal evolution
Authors: Ikeda-Ohno, A
Hennig, C
Weiss, S
Yaita, T
Bernhard, G
Keywords: LIGHT SCATTERING
X-RAY SPECTROSCOPY
TRANSMISSION ELECTRON MICROSCOPY
CERIUM
PH VALUE
METALS
Issue Date: 29-Apr-2013
Publisher: John Wiley and Sons
Citation: Ikeda-Ohno, A., Hennig, C., Weiss, S., Yaita, T., & Bernhard, G. (2013). Hydrolysis of Tetravalent Cerium for a Simple Route to Nanocrystalline Cerium Dioxide: An In Situ Spectroscopic Study of Nanocrystal Evolution. Chemistry- A European Journal, 19(23), 7348-7360.
Abstract: Despite the rapid developments in recent nanocrystal research and their expanding applications, the evolution mechanism of nanocrystals remains veiled for the most part due to the lack of appropriate analytical techniques. Here we demonstrate one promising multi-spectroscopic approach for the in situ investigation of nanocrystal evolution. That is, the formation of nanocrystalline cerium dioxide (NC-CeO2) has been probed by dynamic light scattering (DLS), X-ray absorption spectroscopy (XAS) and high-energy X-ray scattering (HEXS). The obtained results indicate that the fine colloidal particles of NC-CeO2 are formed in an acidic aqueous solution simply through the hydrolysis of the initial precursor of small oligomer CeIV species. This information on how NC-CeO2 evolves is fundamental to simplifying and alleviating the synthetic strategy for NC-CeO2 production. © 2013, Wiley‐Vch Verlag.
URI: http://dx.doi.org/10.1002/chem.201204101
http://apo.ansto.gov.au/dspace/handle/10238/6301
ISSN: 0947-6539
Appears in Collections:Journal Articles

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