Repozitorij Univerze v Novi Gorici

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Naslov:Solvothermal synthesis of iron phosphides and their application for efficient electrocatalytic hydrogen evolution
Avtorji:Chouki, Takwa (Avtor)
Machreki, Manel (Avtor)
Emin, Saim (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: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
COBISS_ID:63148291 Povezava se odpre v novem oknu
UDK:54
URN:URN:SI:UNG:REP:HA55R1JJ
Število ogledov:515
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 monografije

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

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