| Naslov: | Synthesis of Ni/Y2O3 nanocomposite through USP and lyophilisation for possible use as coating |
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| Avtorji: | ID Švarc, Tilen (Avtor)
ID Stopić, Srečko (Avtor)
ID Jelen, Žiga (Avtor)
ID Zadravec, Matej (Avtor)
ID Friedrich, Bernd (Avtor)
ID Rudolf, Rebeka (Avtor) |
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| Datoteke: |  materials-15-02856.pdf (6,07 MB)
MD5: 74E191571A5D09FB200739C5592A8481
 https://www.mdpi.com/1996-1944/15/8/2856
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Članek v reviji |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FS - Fakulteta za strojništvo
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| Opis: | The Ni/Y2O3 catalyst showed high catalytic activity. Based on this, the aim of this study
was to create Ni/Y2O3 nanocomposites powder with two innovative technologies, Ultrasonic Spray
Pyrolysis (USP) and lyophilisation. In the USP process, thermal decomposition of the generated
aerosols in an N2/H2 reduction atmosphere caused a complete decomposition of the nickel (II) nitrate
to elemental Ni, which became trapped on the formed Y2O3 nanoparticles. The Ni/Y2O3 nanocomposite particles were captured via gas washing in an aqueous solution of polyvinylpyrrolidone (PVP)
in collection bottles. PVP was chosen for its ability to stabilise nano-suspensions and as an effective
cryoprotectant. Consequently, there was no loss or agglomeration of Ni/Y2O3 nanocomposite material during the lyophilisation process. The Ni/Y2O3 nanocomposite powder was analysed using
ICP-MS, SEM-EDX, and XPS, which showed the impact of different precursor concentrations on the
final Ni/Y2O3 nanocomposite particle composition. In a final step, highly concentrated Ni/Y2O3
nanocomposite ink (Ni/Y2O3 > 0.140 g/mL) and test coatings from this ink were prepared by applying them on a white matte photo paper sheet. The reflection curve of the prepared Ni/Y2O3
nanocomposite coating showed a local maximum at 440 nm with a value of 39% reflection. Given that
Ni is located on the surface of the Ni/Y2O3 nanocomposite in the elemental state and according to the
identified properties, tests of the catalytic properties of this coating will be performed in the future. |
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| Ključne besede: | Ultrasonic Spray Pyrolysis (USP), lyophilisation, Ni/Y2O3 nanocomposite, characterisation, coatings |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 26.02.2022 |
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| Datum sprejetja članka: | 11.04.2022 |
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| Datum objave: | 13.04.2022 |
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| Založnik: | MDPI |
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| Leto izida: | 2022 |
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| Št. strani: | 17 str. |
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| Številčenje: | Vol. 15, iss. 8 (2856) |
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| PID: | 20.500.12556/DKUM-92207  |
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| UDK: | 669.2/.8:620.3 |
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| COBISS.SI-ID: | 104836099 |
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| DOI: | 10.3390/ma15082856 |
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| ISSN pri članku: | 1996-1944 |
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| Avtorske pravice: | © 2022 by the authors |
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| Datum objave v DKUM: | 20.03.2025 |
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| Število ogledov: | 168 |
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| Število prenosov: | 16 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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