Thermogravimetric relaxation study of the proton conductor lanthanum tungstate, La 28-xW 4+xO 54+δv 2-δ, x = 0.85

International Journal of Hydrogen Energy

Volumn 37, Issue 9, 2012, Pages 8043-8050

  Hancke, Ragnhild ^a   Li, Zuoan ^a   Haugsrud, Reidar ^a  

^a UNIVERSITY OF OSLO   (Norway)

Author keywords

Lanthanum tungstate; Proton conductor; Thermogravimetry; Tracer and chemical relaxation

Indexed keywords

CHEMICAL DIFFUSION; CHEMICAL DIFFUSION COEFFICIENTS; CHEMICAL SURFACES; CRITICAL THICKNESS; PROTON CONDUCTORS; REDUCING CONDITIONS; RELAXATION STUDIES; SURFACE EXCHANGE COEFFICIENTS; SURFACE EXCHANGES; THERMOGRAVIMETRIC; TRACER DIFFUSION;

ACTIVATION ENERGY; DIFFUSION IN SOLIDS; LANTHANUM ALLOYS; METAL OXIDE CERAMICS; PLATINUM; PROTONS; THERMOGRAVIMETRIC ANALYSIS; TUNGSTEN COMPOUNDS;

LANTHANUM;

EID: 84860300319     PISSN: 03603199     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ijhydene.2011.11.050     Document Type: Conference Paper

References (27)

1. 12 Journal of Physics and Chemistry of Solids 69 2008 1758 1765
2. Magraso A, Polfus J, Frontera C, Canales-Vázquez J, Queseth Kaland LE, Hervoches C, et al. Complete structural model for Lanthanum Tungstate: a chemically stable high temperature proton conductor by means of intrinsic defects. Journal of Materials Chemistry. doi: 10.1039/C2JM14981H.
3. 12" prepared by freeze-drying synthesis Dalton Transactions 2009 10273 10283
4. T.A. Norby Kroger-Vink compatible notation for defects in inherently defective sublattices Journal of the Korean Ceramic Society 47 2010 19 25
5. 54+3x/2. International Journal of Hydrogen Energy. doi: 10.1016/j.ijhydene.2011.11.093.
6. Hancke R, Li Z, Haugsrud R. Unpublished results.
7. 11 Solid State Ionics 177 2006 2363 2368
8. 11 Russian Journal of Electrochemistry 42 2006 311 319
9. 9-d from conductivity measurements Journal of the Electrochemical Society 150 2003 A92 A97
10. 2.975 Physical Chemistry Chemical Physics 10 2008 974 982
11. 3-d Journal of the Electrochemical Society 158 2011 B337 B342
12. H.-I. Yoo, and C.-E. Lee Conductivity relaxation patterns of mixed conductor oxides under a chemical potential gradient Solid State Ionics 180 2009 326 337
13. J.-H. Yu, J.-S. Lee, and J. Maier Water incorporation in oxides: a moving boundary problem Solid State Ionics 181 2010 154 162
14. 3-d upon hydration and dehydration International Journal of Hydrogen Energy 36 2011 9367 9373
15. 3 based compounds: a combined thermal gravimetric analysis and conductivity study Solid State Ionics 70-71 1994 278 284
16. 12-d characterization of transport properties under oxidizing conditions: a conductivity relaxation study Journal of Physical Chemistry C 115 2011 11124 11131
17. J. Maier Physical chemistry of ionic materials: ions and electrons in solids 2004 p. 119
18. J. Maier On the correlation of macroscopic and microscopic rate constants in solid state chemistry Solid State Ionics 112 1998 197 228
19. H.J.M. Bouwmeester, and A.J. Burggraaf Dense ceramic membranes for oxygen separation CRC handbook of solid state electrochemistry 1997 pp. 481-553
20. J. Crank The mathematics of diffusion 2nd ed. 1975 p. 60
21. 3-δ Solid State Ionics 181 2010 1429 1436
22. 4+d by conductivity relaxation. Solid State Ionics. doi: 10.1016/j.ssi.2011.11.011.
23. A.S. Nowick, and A.V. Vaysleyb Isotope effect and proton hopping in high-temperature protonic conductors Solid State Ionics 97 1997 17 26
24. 3-d perovskite membranes for air separation Ceramics International 35 2009 2455 2461
25. H. Cui, A. Karthikeyan, S. Gopalan, and U.B. Pal Use of conductivity relaxation experiments to evaluate surface-exchange catalysts Electrochemical and Solid-State Letters 9 2006 A179 A181
26. E. Fridell Kinetics of hydroxyl formation on platinum in water/oxygen mixtures at high temperatures Chemical Physics Letters 188 1992 487 491
27. Magraso A. Unpublished work.