Repozitorij Univerze v Novi Gorici

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Naslov:Solvothermal synthesis of iron phosphides and their application for efficient electrocatalytic hydrogen evolution
Avtorji:ID Chouki, Takwa (Avtor)
ID Machreki, Manel (Avtor)
ID Emin, Saim (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. 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:Neznano
Tipologija:1.12 - Objavljeni povzetek znanstvenega prispevka na konferenci
Organizacija:UNG - Univerza v Novi Gorici
Opis:We report the solvothermal synthesis of iron phosphide electrocatalysts using a low-cost phosphorus precursor [1]. The synthetic protocol allows for the preparation of a Fe2P phase at 300°C and FeP phase at 350°C. To enhance the catalytic activities of obtained iron phosphide particles, heat-treatments were carried out at elevated temperatures. Annealing at 500°C induced structural changes in the samples: (i) Fe2P provided a pure Fe3P phase (Fe3P−500°C) and (ii) FeP transformed into a mixture of iron phosphide phases (Fe2P/FeP−500°C). The electrocatalytic activities of heat-treated Fe2P−450°C, Fe3P−500°C, and Fe2P/FeP−500°C catalysts were studied for hydrogen evolution reaction (HER) in 0.5 M sulfuric acid (H2SO4). The HER activities of the iron phosphide catalyst were found to be phase dependent. The lowest recorded overpotential of 110 mV at 10 mA cm−2 vs. a reversible hydrogen electrode was achieved with Fe2P/FeP−500°C catalyst. The present approach allows the preparation of immobilized iron phsphide catalyst onto carbon support which is essential for application purpose. The procedure developed by us is an elegant approach to tune the composition of iron phosphide catalyst and control the morphology of particles.
Ključne besede:solvothermal synthesis, iron phosphide, electrocatalyst, hydrogen evolution, overpotential
Leto izida:2020
Št. strani:Str. 73
PID:20.500.12556/RUNG-6534 Novo okno
COBISS.SI-ID:63148291 Novo okno
UDK:54
NUK URN:URN:SI:UNG:REP:HA55R1JJ
Datum objave v RUNG:13.05.2021
Število ogledov:2359
Število prenosov:0
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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Gradivo je del monografije

Naslov:Zbornik povzetkov : Slovenski kemijski dnevi 2020
Uredniki:Albin Pintar, Marjana Gantar Albreht, Romana Cerc Korošec, Darja Lisjak, Matic Lozinšek, Zorka Novak-Pintarič, Matjaž Valant, Silvo Zupančič
Kraj izida:Ljubljana
Založnik:Slovensko kemijsko društvo
Leto izida:2020
ISBN:978-961-93849-7-8
COBISS.SI-ID:26241795 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:NI-0002

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