Determining the maximum lanthanum incorporation in the fluorite structure of La-doped ceria nanocubes for enhanced redox ability
Type
ArticleAuthors
Loche, DaniloMorgan, Lucy M.
Casu, Alberto
Mountjoy, Gavin
O'Regan, Colm
Corrias, Anna
Falqui, Andrea

KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionBioscience Program
Date
2019Permanent link to this record
http://hdl.handle.net/10754/631524
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Show full item recordAbstract
Ceria nanocubes have been doped with increasing amounts of lanthanum to enhance their redox ability. X-ray diffraction and transmission electron microscopy techniques provide a consistent picture indicating that there is an upper limit to the lanthanum that can be incorporated in the fluorite structure of ceria nanocubes, which is close to 7.5 mol% La. This limited loading is nevertheless able to produce a significant enhancement of the ceria redox ability as evidenced by use of X-ray absorption spectroscopy to determine the Ce3+/Ce4+ ratio in samples submitted to a degassing treatment at room temperature.Citation
Loche D, Morgan LM, Casu A, Mountjoy G, O’Regan C, et al. (2019) Determining the maximum lanthanum incorporation in the fluorite structure of La-doped ceria nanocubes for enhanced redox ability. RSC Advances 9: 6745–6751. Available: http://dx.doi.org/10.1039/c8ra09766f.Sponsors
This work was supported by the British Council UK-Gulf Institutional Links grant (279183790) and by the Engineering and Physical Sciences Research Council (EPSRC) grant (EP/1641783). The authors also wish to thank the Diamond Light Source for the award of beam time as part of the Energy Materials Block Allocation Group SP14239.Publisher
Royal Society of Chemistry (RSC)Journal
RSC Advancesae974a485f413a2113503eed53cd6c53
10.1039/c8ra09766f
Scopus Count
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