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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/59852

Title: The complex synthesis and solid state chemistry of ceria-lanthana solid solutions prepared via a hexamethylenetetramine precipitation.
Author: HOLMES, JUSTIN DEREK
Author's Homepage: http://people.tcd.ie/holmesjd
Keywords: Physical chemistry
Solid solutions
Issue Date: 2011
Publisher: Elsevier
Citation: P G Fleming, J D Holmes, D J Otway, M A Morris, The complex synthesis and solid state chemistry of ceria-lanthana solid solutions prepared via a hexamethylenetetramine precipitation., Journal of Solid State Chemistry, 184, 9, 2011, 2595-2600
Series/Report no.: Journal of Solid State Chemistry;
184;
9;
Abstract: Mixed oxide solid solutions are becoming ever more commercially important across a range of applications. However, their synthesis can be problematical. Here, we show that ceria-lanthana solid solutions can be readily prepared via simple precipitation using hexamethylenetetramine. However, the solution chemistry can be complex which results in the precipitated particles having a complex structure and morphology. Great care must be taken in both the synthesis and characterisation to quantify the complexity of the product. Even very high heat treatments were not able to produce highly homogeneous materials and x-ray diffractions reveals the non-equilibrium form of particles prepared in this way. Unexpected crystal structures are revealed including a new metastable cubic La2O3 phase.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/59852
Related links: http://dx.doi.org/10.1016/j.jssc.2011.07.004
Appears in Collections:Physics (Scholarly Publications)

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