Repozitorij Univerze v Novi Gorici

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Naslov:Winning combination of Cu and Fe oxide clusters with an alumina support for low-temperature catalytic oxidation of volatile organic compounds
Avtorji:ID Žumbar, Tadej (Avtor)
ID Arčon, Iztok (Avtor)
ID Djinović, Petar (Avtor)
ID Aquilanti, Giuliana (Avtor)
ID Žerjav, Gregor (Avtor)
ID Pintar, Albin (Avtor)
ID Ristić, Alenka (Avtor)
ID Dražić, Goran (Avtor)
ID Volavšek, Janez (Avtor)
ID Mali, Gregor (Avtor)
ID Popova, Margarita (Avtor)
ID Zabukovec Logar, Nataša (Avtor)
ID Novak Tušar, Nataša (Avtor)
Datoteke:.pdf acsami.3c02705.pdf (11,05 MB)
MD5: 9F6FD8403245A89B52B58BADECE39601
 
.pdf am3c02705_si_001.pdf (1,78 MB)
MD5: C155B8532A9535251F1F1185521A5925
 
URL https://pubs.acs.org/doi/10.1021/acsami.3c02705?goto=supporting-info
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:A γ-alumina support functionalized with transition metals is one of the most widely used industrial catalysts for the total oxidation of volatile organic compounds (VOCs) as air pollutants at higher temperatures (280−450 °C). By rational design of a bimetal CuFe-γ-alumina catalyst, synthesized from a dawsonite alumina precursor, the activity in total oxidation of toluene as a model VOC at a lower temperature (200−380 °C) is achieved. A fundamental understanding of the catalyst and the reaction mechanism is elucidated by advanced microscopic and spectroscopic characterizations as well as by temperature-programmed surface techniques. The nature of the metal−support bonding and the optimal abundance between Cu−O−Al and Fe−O−Al species in the catalysts leads to synergistic catalytic activity promoted by small amounts of iron (Fe/Al = 0.005). The change in the metal oxide−cluster alumina interface is related to the nature of the surfaces to which the Cu atoms attach. In the most active catalyst, the CuO6 octahedra are attached to 4 Al atoms, while in the less active catalyst, they are attached to only 3 Al atoms. The oxidation of toluene occurs via the Langmuir−Hinshelwood mechanism. The presented material introduces a prospective family of low-cost and scalable oxidation catalysts with superior efficiency at lower temperatures.
Ključne besede:Iron oxide clusters, copper oxide clusters, alumina support, synergistic effect, low-temperature total catalytic oxidation, toluene, Cu, Fe XANES, EXAFS
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.01.2023
Leto izida:2023
Št. strani:str. 28747-28762
Številčenje:Vol. 15, issue 23
PID:20.500.12556/RUNG-8291-1279fbf1-3f7b-2ced-f8c8-5733261da4a9 Novo okno
COBISS.SI-ID:156450051 Novo okno
UDK:544.3/.4
ISSN pri članku:1944-8244
DOI:10.1021/acsami.3c02705 Novo okno
NUK URN:URN:SI:UNG:REP:E4MVTFOC
Datum objave v RUNG:06.07.2023
Število ogledov:1233
Število prenosov:13
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:ACS applied materials & interfaces
Skrajšan naslov:ACS appl. mater. interfaces
Založnik:American Chemical Society
ISSN:1944-8244
COBISS.SI-ID:14731286 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Program financ.:Javna agencija Republike Slovenije za raziskovalno dejavnost
Številka projekta:P1-0021-2020
Naslov:Nanoporozni materiali

Financer:EC - European Commission
Program financ.:European Commission
Številka projekta:730872
Naslov:Convenient Access to Light Sources Open to Innovation, Science and to the World
Akronim:CALIPSOplus

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Program financ.:Javna agencija Republike Slovenije za raziskovalno dejavnost
Številka projekta:P1-0418-2022
Naslov:Kemija katalizatorjev za čisti zrak

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Program financ.:Javna agencija Republike Slovenije za raziskovalno dejavnost
Številka projekta:P1-0112-2022
Naslov:Raziskave atomov, molekul in struktur s fotoni in delci

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:kataliza, aluminij, onesnaževanje, ozračje, zrak, katalizatorji, organske spojine


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