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Author Esquivel, M.R.; Zelaya, E. doi  openurl
  Title Synthesis and characterisation of lanthanide-based dioxide Type A1 Journal article
  Year (down) 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.  
  Address  
  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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