Phase Transformation Dynamics in Sulfate-Loaded Lanthanide Triphosphonates. Proton Conductivity and Application as Fillers in PEMFCs.
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AuthorsSalcedo, Inés R.
Colodrero, Rosario MP
Del Río, Carmen
Demadis, Konstantinos D.
Hix, Gary B.
Furasova, Aleksandra D
MetadataShow full item record
AbstractPhase transformation dynamics and proton conduction properties are reported for cationic layer-featured coordination polymers derived from the combination of lanthanide ions (Ln3+) with nitrilo-tris(methylenephosphonic acid) (H6NMP) in the presence of sulfate ions. Two families of materials are isolated and structurally characterized, i.e., [Ln2(H4NMP)2(H2O)4](HSO4)2·nH2O (Ln = Pr, Nd, Sm, Eu, Gd, Tb, Er, Yb; n = 4–5, Series I) and [Ln(H5NMP)]SO4·2H2O (Ln = Pr, Nd, Eu, Gd, Tb; Series II). Eu/Tb bimetallic solid solutions are also prepared for photoluminescence studies. Members of families I and II display high proton conductivity (10–3 and 10–2 S·cm–1 at 80 °C and 95% relative humidity) and are studied as fillers for Nafion-based composite membranes in PEMFCs, under operating conditions. Composite membranes exhibit higher power and current densities than the pristine Nafion membrane working in the range of 70–90 °C and 100% relative humidity and with similar proton conductivity.
CitationSalcedo, I. R., Colodrero, R. M. P., Bazaga-García, M. et al. (2021) Phase Transformation Dynamics in Sulfate-Loaded Lanthanide Triphosphonates. Proton Conductivity and Application as Fillers in PEMFCs., ACS Applied Materials and Interfaces, 13 (13), pp. 15279–15291
PublisherAmerican Chemical Society (ACS)
JournalACS applied materials & interfaces
PubMed ID33764728 (pubmed)
DescriptionThis is an accepted manuscript of an article published by American Chemical Society in ACS Applied Materials and Interface on 25/03/2021, available online: https://pubs.acs.org/doi/10.1021/acsami.1c01441 The accepted version of the publication may differ from the final published version.
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/
- Phase Transformation Dynamics in Sulfate-Loaded Lanthanide Triphosphonates. Proton Conductivity and Application as Fillers in PEMFCs.
- Authors: Salcedo IR, Colodrero RMP, Bazaga-García M, López-González M, Del Río C, Xanthopoulos K, Demadis KD, Hix GB, Furasova AD, Choquesillo-Lazarte D, Olivera-Pastor P, Cabeza A
- Issue date: 2021 Apr 7
- Luminescent and Proton Conducting Lanthanide Coordination Networks Based On a Zwitterionic Tripodal Triphosphonate.
- Authors: Bazaga-García M, Angeli GK, Papathanasiou KE, Salcedo IR, Olivera-Pastor P, Losilla ER, Choquesillo-Lazarte D, Hix GB, Cabeza A, Demadis KD
- Issue date: 2016 Aug 1
- Coordination polymers based on inorganic lanthanide(II) sulfate skeletons and an organic isonicotinate N-oxide connector: segregation into three structural types by the lanthanide contraction effect.
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