| Title: | Synthesis of Ni/Y2O3 nanocomposite through USP and lyophilisation for possible use as coating |
|---|
| Authors: | ID Švarc, Tilen (Author)
ID Stopić, Srečko (Author)
ID Jelen, Žiga (Author)
ID Zadravec, Matej (Author)
ID Friedrich, Bernd (Author)
ID Rudolf, Rebeka (Author) |
|---|
| Files: |  materials-15-02856.pdf (6,07 MB)
MD5: 74E191571A5D09FB200739C5592A8481
 https://www.mdpi.com/1996-1944/15/8/2856
|
|---|
| Language: | English |
|---|
| Work type: | Article |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | FS - Faculty of Mechanical Engineering
|
|---|
| Abstract: | 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. |
|---|
| Keywords: | Ultrasonic Spray Pyrolysis (USP), lyophilisation, Ni/Y2O3 nanocomposite, characterisation, coatings |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Submitted for review: | 26.02.2022 |
|---|
| Article acceptance date: | 11.04.2022 |
|---|
| Publication date: | 13.04.2022 |
|---|
| Publisher: | MDPI |
|---|
| Year of publishing: | 2022 |
|---|
| Number of pages: | 17 str. |
|---|
| Numbering: | Vol. 15, iss. 8 (2856) |
|---|
| PID: | 20.500.12556/DKUM-92207  |
|---|
| UDC: | 669.2/.8:620.3 |
|---|
| ISSN on article: | 1996-1944 |
|---|
| COBISS.SI-ID: | 104836099 |
|---|
| DOI: | 10.3390/ma15082856 |
|---|
| Copyright: | © 2022 by the authors |
|---|
| Publication date in DKUM: | 20.03.2025 |
|---|
| Views: | 166 |
|---|
| Downloads: | 16 |
|---|
| Metadata: |    |
|---|
| Categories: | Misc.
|
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
