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Synthesis and characterization of new zirconium 4-sulfophenylphosphonates
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SYSNO ASEP 0343449 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Synthesis and characterization of new zirconium 4-sulfophenylphosphonates Author(s) Zima, Vítězslav (UMCH-V) RID, ORCID
Svoboda, Jan (UMCH-V) RID
Melánová, Klára (UMCH-V) RID, ORCID
Beneš, L. (CZ)
Casciola, M. (IT)
Sganappa, M. (IT)
Brus, Jiří (UMCH-V) RID, ORCID
Trchová, Miroslava (UMCH-V) RID, ORCIDNumber of authors 8 Source Title Solid State Ionics. - : Elsevier - ISSN 0167-2738
Roč. 181, č. 15-16 (2010), s. 705-713Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords zirconium ; phosphonate ; infrared spectra Subject RIV CA - Inorganic Chemistry R&D Projects IAA400500602 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA203/08/0208 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000279377900007 DOI 10.1016/j.ssi.2010.03.034 Annotation 4-Sulfophenylphosphonic acid was successfully used for the preparation of zirconium sulfophenylphosphonate and zirconium phosphate sulfophenylphosphonate with formulae Zr(HO3SC6H4PO3)2.2H2O and Zr(HPO4)0.7(HO3SC6H4PO3)1.3.2H2O. Both compounds were further characterized by FTIR and solid-state NMR, which confirmed the presence of strongly acidic hydrogen on the sulfonic group. The proton conductivity of both compounds was determined as a function of relative humidity and as a function of temperature. Due to their insolubility in water, good thermal stability and the considerably high protonic conductivity the discribed layered compounds are promising candidates for application as components of composite proton exchange membranes in fuel cells. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2011
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