Comparison of the local and the average crystal structure of proton conducting lanthanum tungstate and the influence of molybdenum substitution
Magrasó, Anna (Institut Català de Nanociència i Nanotecnologia)
Frontera, Carlos (Institut de Ciència de Materials de Barcelona)
Data: |
2016 |
Resum: |
We report on the comparison of the local and average structure reported recently for proton conducting lanthanum tungstate, of general formula LaWOv, and the impact of molybdenum-substitution on the crystal structure of the material. Partial replacement of W with 10 and 30 mol% Mo is investigated here, i. e. La(WMo)O for x = 0. 1 and 0. 3. This study addresses the interpretation and the description of a disordered cation and anion sublattice in this material, which enables the understanding of the fundamental properties related to hydration, transport properties and degradation in lanthanum tungstate. The report shows that Mo-substituted lanthanum tungstate is a promising material as a dense oxide membrane for hydrogen separation at intermediate temperatures. |
Drets: |
Tots els drets reservats. |
Llengua: |
Anglès |
Document: |
Article ; recerca ; Versió acceptada per publicar |
Matèria: |
Average structure ;
Fundamental properties ;
General formulas ;
Hydrogen separation ;
Intermediate temperatures ;
Oxide membrane ;
Partial replacement ;
Proton conducting |
Publicat a: |
Dalton transactions, Vol. 45, Issue 9 (March 2016) , p. 3791-3797, ISSN 1477-9234 |
DOI: 10.1039/c5dt04659a
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Registre creat el 2019-09-23, darrera modificació el 2022-09-10