| Title: | Synthesis of complex concentrated nanoparticles by Ultrasonic Spray Pyrolysis and lyophilisation |
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| Authors: | ID Terzić, Lidija (Author)
ID Stopić, Srečko (Author)
ID Friedrich, Bernd (Author)
ID Zadravec, Matej (Author)
ID Jelen, Žiga (Author)
ID Bobovnik, Rajko (Author)
ID Anžel, Ivan (Author)
ID Rudolf, Rebeka (Author) |
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| Files: |  metals-12-01802-v2.pdf (9,27 MB)
MD5: 868CDB9FF4BB6A7520DB6D1D4DC079EC
 https://www.mdpi.com/2075-4701/12/11/1802
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | The development of new multicomponent nanoparticles is gaining increasing importance
due to their specific functional properties, i.e., synthesised new complex concentrated nanoparticles
(CCNPs) in the form of powder using ultrasonic spray pyrolysis (USP) and lyophilisation from the
initial cast Ag20Pd20Pt20Cu20Ni20 alloy, which was in the function of the material after its catalytic
abilities had been exhausted. Hydrometallurgical treatment was used to dissolve the cast alloy,
from which the USP precursor was prepared. As a consequence of the incomplete dissolution of
the cast alloy and the formation of Pt and Ni complexes, it was found that the complete recycling
of the alloy is not possible. A microstructural examination of the synthesised CCNPs showed that
round and mostly spherical (not 100%) nanoparticles were formed, with an average diameter of
200 nm. Research has shown that CCNPs belong to the group with medium entropy characteristics.
A mechanism for the formation of CCNPs is proposed, based on the thermochemical analysis of
element reduction with the help of H2 and based on the mixing enthalpy of binary systems. |
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| Keywords: | complex concentrated nanoparticles, ultrasonic spray pyrolysis, lyophilisation, characterization, formation mechanism |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 01.09.2022 |
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| Article acceptance date: | 20.10.2022 |
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| Publication date: | 24.10.2022 |
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| Publisher: | MDPI AG |
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| Year of publishing: | 2022 |
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| Number of pages: | Str. 1-16 |
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| Numbering: | Vol. 12, iss. 11 (1802) |
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| PID: | 20.500.12556/DKUM-92238  |
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| UDC: | 669.21:620.3 |
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| ISSN on article: | 2075-4701 |
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| COBISS.SI-ID: | 127093763 |
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| DOI: | 10.3390/met12111802 |
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| Copyright: | © 2022 by the authors |
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| Publication date in DKUM: | 24.03.2025 |
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| Views: | 219 |
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| Downloads: | 10 |
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| Metadata: |    |
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| Categories: | Misc.
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