Žiga Jelen (Author), Marcin Krajewski (Author), Franc Zupanič (Author), Peter Majerič (Author), Tilen Švarc (Author), Ivan Anžel (Author), Jernej Ekar (Author), Sz-Chian Liou (Author), Jerzy Kubacki (Author), Mateusz Tokarczyk (Author), Rebeka Rudolf (Author)

Abstract

A coupled process of ultrasonic spray pyrolysis and lyophilisation was used for the synthesis of dried gold nanoparticles. Two methods were applied for determining their melting temperature: uniaxial microcompression and differential scanning calorimetry (DSC) analysis. Uniaxial microcompression resulted in sintering of the dried gold nanoparticles at room temperature with an activation energy of 26–32.5 J/g, which made it impossible to evaluate their melting point. Using DSC, the melting point of the dried gold nanoparticles was measured to be around 1064.3°C, which is close to pure gold. The reason for the absence of a melting point depression in dried gold nanoparticles was their exothermic sintering between 712 and 908.1°C.

Keywords

zlati nanodelci;tališče;ultrazvočna razpršilna piroliza;karakterizacija;gold nanoparticles;melting point;ultrasonic spray pyrolysis;characterisation;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: De Gruyter
UDC: 669.2/.8:620.3
COBISS: 158645507 Link will open in a new window
ISSN: 2191-9097
Views: 224
Downloads: 12
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: Slovenian
Secondary keywords: zlati nanodelci;tališče;ultrazvočna razpršilna piroliza;karakterizacija;
Type (COBISS): Article
Pages: 12 str.
Volume: ǂVol. ǂ12
Issue: ǂiss. ǂ1
Chronology: July 2023
DOI: 10.1515/ntrev-2022-0568
ID: 21548171