Internal Friction Study of the Rare Earth Ion Substituted Fast Oxide-Ion Conductors (La1-ΧreΧ)2Mo2O9 (Re=Nd, Gd)
作者： X.P. Wang , J. Hu , Zhong Zhuang , Tao Zhang , Qian Feng Fang
DOI: 10.4028/WWW.SCIENTIFIC.NET/SSP.184.110
关键词: Analytical chemistry 、 Ion 、 Phase transition 、 Materials science 、 Doping 、 Relaxation (NMR) 、 Electrical conductor 、 Diffusion 、 Atmospheric temperature range 、 Phase (matter)
摘要: The relaxation and phase transition behaviors of rare-earth ion substituted fast oxide-ion conductors (La1-xRex)2Mo2O9 (Re=Nd, Gd) were investigated by internal friction (IF) measurement in the temperature range 300 K - 950 K. Three different IF peaks (labeled as PL, PH, and PG, respectively) were observed in the rare-earth ion doped La2Mo2O9 samples. Peak PL corresponds to short diffusion processes of oxygen ions among different oxygen vacancy sites. Peak PH is associated with the static/dynamic disorder transition in oxygen ion distribution. Peak PG is a newly discovered peak embodying phase transition-like characteristics and is suggested to be related to order-disorder transition associated with the rearrangement of La/ Re sub-lattice.
sci-hub.se 参考文章(19)
R. A. Rocha, E. N. S. Muccillo, Synthesis and Thermal Decomposition of a Polymeric Precursor of the La2Mo2O9 Compound Chemistry of Materials. ,vol. 15, pp. 4268- 4272 ,(2003) , 10.1021/CM030413+
Dah-Shyang Tsai, Meng-Ju Hsieh, Jang-Chung Tseng, Hsin-Yi Lee, Ionic conductivities and phase transitions of lanthanide rare-earth substituted La2Mo2O9 Journal of The European Ceramic Society. ,vol. 25, pp. 481- 487 ,(2005) , 10.1016/J.JEURCERAMSOC.2004.03.020
Samuel Georges, François Goutenoire, Felix Altorfer, Denis Sheptyakov, François Fauth, Emmanuelle Suard, Philippe Lacorre, Thermal, structural and transport properties of the fast oxide-ion conductors La2−xRxMo2O9 (R=Nd, Gd, Y) Solid State Ionics. ,vol. 161, pp. 231- 241 ,(2003) , 10.1016/S0167-2738(03)00279-0
R. D. Shannon, Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides Acta Crystallographica Section A. ,vol. 32, pp. 751- 767 ,(1976) , 10.1107/S0567739476001551
Gwenaël Corbel, Elodie Chevereau, Stéphanie Kodjikian, Philippe Lacorre, Topological Metastability and Oxide Ionic Conduction in La2-xEuxMo2O9 Inorganic Chemistry. ,vol. 46, pp. 6395- 6404 ,(2007) , 10.1021/IC700876D
F. J. Liang, X. P. Wang, Q. F. Fang, J. X. Wang, C. Li, D. Li, Z. Zhuang, Internal friction studies of La 2-x Ba x Mo 2 O 9-δ oxide-ion conductors Physical Review B. ,vol. 74, pp. 014112- ,(2006) , 10.1103/PHYSREVB.74.014112
F. Goutenoire, O. Isnard, R. Retoux, Crystal Structure of La2Mo2O9, a New Fast Oxide−Ion Conductor Chemistry of Materials. ,vol. 12, pp. 2575- 2580 ,(2000) , 10.1021/CM991199L
Z. S. Khadasheva, N. U. Venskovskii, M. G. Safronenko, A. V. Mosunov, E. D. Politova, S. Yu. Stefanovich, Synthesis and properties of La2(Mo1-xMx)2O9 (M = Nb, Ta) ionic conductors Inorganic Materials. ,vol. 38, pp. 1168- 1171 ,(2002) , 10.1023/A:1020978902757
C. Li, X.P. Wang, J.X. Wang, D. Li, Z. Zhuang, Q.F. Fang, Study on the electrical conductivity and oxygen diffusion of oxide-ion conductors La2Mo2−xTxO9−δ (T = Al, Fe, Mn, Nb, V) Materials Research Bulletin. ,vol. 42, pp. 1077- 1084 ,(2007) , 10.1016/J.MATERRESBULL.2006.09.014
XP Wang, QF Fang, ZS Li, GG Zhang, ZG Yi, None, Dielectric relaxation studies of Bi-doping effects on the oxygen-ion diffusion in La2−xBixMo2O9 oxide-ion conductors Applied Physics Letters. ,vol. 81, pp. 3434- 3436 ,(2002) , 10.1063/1.1518151