Next Article in Journal
Biochemical Interaction between Materials Used for Interim Prosthetic Restorations and Saliva
Previous Article in Journal
Assessment of Destructive Impact of Different Factors on Concrete Structures Durability
Previous Article in Special Issue
Cu Patterning Using Femtosecond Laser Reductive Sintering of CuO Nanoparticles under Inert Gas Injection
 
 
Article

Comparison of Aerosol Pt, Au and Ag Nanoparticles Agglomerates Laser Sintering

Moscow Institute of Physics and Technology, National Research University, 141701 Dolgoprudny, Russia
*
Authors to whom correspondence should be addressed.
Academic Editor: Alina A. Manshina
Materials 2022, 15(1), 227; https://doi.org/10.3390/ma15010227
Received: 10 December 2021 / Revised: 25 December 2021 / Accepted: 27 December 2021 / Published: 29 December 2021
(This article belongs to the Special Issue Laser Technologies in Metal-Based Materials)
In this paper, we investigated the interaction of nanosecond pulsed-periodic infrared (IR) laser radiation at a 50 and 500 Hz repetition rate with aerosol platinum (Pt) and silver (Ag) nanoparticles agglomerates obtained in a spark discharge. Results showed the complete transformation of Pt dendrite-like agglomerates with sizes of 300 nm into individual spherical nanoparticles directly in a gas flow under 1053 nm laser pulses with energy density 3.5 mJ/cm2. Notably, the critical energy density required for this process depended on the size distribution and extinction of agglomerates nanoparticles. Based on the extinction cross-section spectra results, Ag nanoparticles exhibit a weaker extinction in the IR region in contrast to Pt, so they were not completely modified even under the pulses with energy density up to 12.7 mJ/cm2. The obtained results for Ag and Pt laser sintering were compared with corresponding modification of gold (Au) nanoparticles studied in our previous work. Here we considered the sintering mechanisms for Ag, Pt and Au nanoparticles agglomerates in the aerosol phase and proposed the model of their laser sintering based on one-stage for Pt agglomerates and two-stage shrinkage processes for Au and Ag agglomerates. View Full-Text
Keywords: aerosol nanoparticles; platinum; gold; silver; spark discharge; pulsed laser radiation; IR; shrinkage; plasmon resonance; extinction aerosol nanoparticles; platinum; gold; silver; spark discharge; pulsed laser radiation; IR; shrinkage; plasmon resonance; extinction
Show Figures

Figure 1

MDPI and ACS Style

Khabarov, K.; Nouraldeen, M.; Tikhonov, S.; Lizunova, A.; Seraya, O.; Filalova, E.; Ivanov, V. Comparison of Aerosol Pt, Au and Ag Nanoparticles Agglomerates Laser Sintering. Materials 2022, 15, 227. https://doi.org/10.3390/ma15010227

AMA Style

Khabarov K, Nouraldeen M, Tikhonov S, Lizunova A, Seraya O, Filalova E, Ivanov V. Comparison of Aerosol Pt, Au and Ag Nanoparticles Agglomerates Laser Sintering. Materials. 2022; 15(1):227. https://doi.org/10.3390/ma15010227

Chicago/Turabian Style

Khabarov, Kirill, Messan Nouraldeen, Sergei Tikhonov, Anna Lizunova, Olesya Seraya, Emiliia Filalova, and Victor Ivanov. 2022. "Comparison of Aerosol Pt, Au and Ag Nanoparticles Agglomerates Laser Sintering" Materials 15, no. 1: 227. https://doi.org/10.3390/ma15010227

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop