Instantaneous formation of polyoxometalate-based cerium vanadium oxide gels
Seliverstov A, Rangus M, Hartmann M, Mitchell SG, Streb C (2017)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2017
Journal
Publisher: ROYAL SOC CHEMISTRY
Book Volume: 4
Pages Range: 160-164
Journal Issue: 1
DOI: 10.1039/c6qi00457a
Abstract
The instantaneous formation of mechanically stable cerium vanadium oxide gels starting from soluble polyoxovanadates is reported together with initial application studies. Upon addition of phosphoric acid to solutions containing a vanadium oxide source (e.g. (nBu(4)N)(4)[V4O12]) and Ce3+, instantaneous formation (reaction time <1 s) of a vanadium oxide gel is observed. The gel shows unique mechanical and thermal stabilities (up to similar to 180 degrees C). High permeability of the gel is observed, allowing its use for long-term acid delivery into aqueous media or for the adsorption of organic aromatic dye pollutants from solution. A range of spectroscopy and electron microscopy techniques provide insight into the gel formation and the gel composition: an intertwined 3D matrix of nanowires (d similar to 10 nm) containing cerium, vanadium oxide and phosphate is identified as an inorganic matrix which enables the formation of the mechanically stable gel.
Authors with CRIS profile
Mojca Rangus
Interdisziplinäres Zentrum Erlangen Catalysis Resource Center (ECRC)
Martin Hartmann
Professur für Katalyse
Additional Organisation(s)
Involved external institutions
Germany (DE)
Spain (ES)How to cite
APA:
Seliverstov, A., Rangus, M., Hartmann, M., Mitchell, S.G., & Streb, C. (2017). Instantaneous formation of polyoxometalate-based cerium vanadium oxide gels. Inorganic Chemistry Frontiers, 4(1), 160-164. https://doi.org/10.1039/c6qi00457a
MLA:
Seliverstov, Andrey, et al. "Instantaneous formation of polyoxometalate-based cerium vanadium oxide gels." Inorganic Chemistry Frontiers 4.1 (2017): 160-164.
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