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Author | Esquivel, M.R.; Zelaya, E. | ||||
Title | Synthesis and characterisation of lanthanide-based dioxide | Type | A1 Journal article | ||
Year | 2011 | Publication | Advances in applied ceramics | Abbreviated Journal | Adv Appl Ceram |
Volume | 110 | Issue | 4 | Pages | 219-224 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | In the present work, the microstructure and structure of La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)(OH)(3) and La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)O(2) is obtained from transmission electron microscopy and X-ray diffraction measurements. Space group P6(3)/m is assigned to the structure of La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)(OH)(3). Lanthanides are assigned to Wyckoff positions 2c. Cell parameters are a=6.375(5) angstrom and c=3.753(5) angstrom. The thermal decomposition of this compound was studied by differential scanning calorimetry. The process is exothermal with an enthalpy change Delta H degrees value of -254 +/- 10 kJ mol(-1). The decomposition kinetics is complex and two global processes with E(a) values of 98 +/- 4 and 61 +/- 2 kJ mol 21 were observed. The product is a lanthanide dioxide. Space group Fm3m is assigned to the La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)O(2). Lanthanides are distributed in Wyckoff positions 4a. The cell parameter is a=5.479(5) angstrom. Nanopores in the oxide surface are obtained using this method and characterised by STEM measurements. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | Leeds | Editor | ||
Language | Wos | 000291206700006 | Publication Date | 2011-05-30 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1743-6753;1743-6761; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | 1.325 | Times cited | 3 | Open Access | |
Notes | Approved | Most recent IF: 1.325; 2011 IF: 0.871 | |||
Call Number | UA @ lucian @ c:irua:105588 | Serial | 3410 | ||
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