Repozitorij Univerze v Novi Gorici

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Naslov:Alternative Recovery and Valorization of Metals from Exhausted Catalytic Converters in a New Smart Polymetallic Catalyst
Avtorji:Tieuli, Sebastiano (Avtor)
Baldi, Franco (Avtor)
Arčon, Iztok (Avtor)
Vogel-Mikuš, Katarina (Avtor)
Gallo, Michele (Avtor)
Sperni, Laura (Avtor)
Piccolo, Oreste (Avtor)
Paganelli, Stefano (Avtor)
Datoteke:Gradivo nima datotek. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:A new metals-polymeric composite, Metx-EPS (I), was prepared to be used as catalyst in water or in two-phase aqueous conditions. The metals source was an exhausted catalytic converter that was grinded and treated with an acidic solution at room temperature. After filtration, the solution was concentrated, neutralized and added to a broth of Klebsiella oxytoca DSM 29614 to produce (I) where metals are embedded in a peculiar polysaccharide structure (EPS). The composite was easily recovered from the fermentation broth and purified. The process protocol was verified many times and was shown to be reproducible satisfactorily. The % recovery of metals, originally present in the converter, was good as determined by atomic absorption. The morphology and the chemical state of main metals in (I) were investigated by X-ray absorption spectroscopy methods (XANES and EXAFS). No metallic alloy seems to be evident. The catalytic activity and a possible synergic effect due to the presence of the different metals was valuated in the hydrogenation of some substrates, valuable precursors for theproduction of fine chemicals.
Ključne besede:Biogenerated polymetallic exopolysaccharide, biphasic catalysis, hydrogenation, metals-polymeric composite, new catalyst from metallic wastes, EXAFS, XANES
Leto izida:2019
Št. strani:4624-4632
Številčenje:15, 4
COBISS_ID:5054287 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:OVFAAV0F
DOI:10.1002/slct.201803925 Povezava se odpre v novem oknu
Število ogledov:194
Število prenosov:0
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Gradivo ni uvrščeno v področja.
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.

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Gradivo je del revije

Naslov:ChemistrySelect
Založnik:Wiley: 12 months
ISSN:2365-6549
Leto izida:2019

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