Repozitorij Univerze v Novi Gorici

Izpis gradiva
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Naslov:Highly active iron phosphide catalysts for selective electrochemical nitrate reduction to ammonia
Avtorji:Chouki, Takwa (Avtor)
Machreki, Manel (Avtor)
Rutkowska, Iwona (Avtor)
Rytelewska, Beata (Avtor)
Kulesza, Pawel J. (Avtor)
Tyuliev, Georgi (Avtor)
Harb, Moussab (Avtor)
Azofra, Luis Miguel (Avtor)
Emin, Saim (Avtor)
et al.
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:The electrochemical reduction reaction of the nitrate ion (NO3−), a widespread water pollutant, to valuable ammonia (NH3) is a promising approach for environmental remediation and green energy conservation. The development of high-performance electrocatalysts to selectively reduce NO3− wastes into value-added NH3 will open up a different route of NO3− treatment, and impose both environmental and economic impacts on sustainable NH3 synthesis. Transition metal phosphides represent one of the most promising earth-abundant catalysts with impressive electrocatalytic activities. Herein, we report for the first time the electrocatalytic reduction of NO3− using different phases of iron phosphide. Particularly, FeP and Fe2P phases were successfully demonstrated as efficient catalysts for NH3 generation. Detection of the in-situ formed product was achieved using electrooxidation of NH3 to nitrogen (N2) on a Pt electrode. The Fe2P catalyst exhibits the highest Faradaic efficiency (96 %) for NH3 generation with a yield (0.25 mmol h−1 cm-−2 or 2.10 mg h−1 cm−2) at − 0.55 V vs. reversible hydrogen electrode (RHE). The recycling tests confirmed that Fe2P and FeP catalysts exhibit excellent stability during the NO3− reduction at − 0.37 V vs. RHE. To get relevant information about the reaction mechanisms and the fundamental origins behind the better performance of Fe2P, density functional theory (DFT) calculations were performed. These results indicate that the Fe2P phase exhibits excellent performance to be deployed as an efficient noble metal-free catalyst for NH3 generation.
Ključne besede:Iron phosphide, Electrocatalysts, Nitrates reduction Ammonia, DFT calculations
Leto izida:2023
Št. strani:11
Številčenje:11, 2
COBISS_ID:140447235 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:BRFWNGNK
DOI:https://doi.org/10.1016/j.jece.2023.109275 Povezava se odpre v novem oknu
Licenca:CC BY-NC-ND 4.0
To delo je dosegljivo pod licenco Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Število ogledov:338
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:Journal of Environmental Chemical Engineering
Založnik:Elsevier
Leto izida:2023

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Program financ.:Raziskovalni projekti - temeljni
Številka projekta:N2-0221
Naslov:Večnamenski elektrokatalizatorji za čisto energijsko pretvorbo
Akronim:
ID projekta:info:eu-repo/grantAgreement/ARRS/Raziskovalni%20projekti%20-%20temeljni/N2-0221

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