Evaluation of the change in the morphology of gold nanoparticles during sintering
Nakaso, K ; Shimada, M ; Okuyama, K and Deppert, Knut LU
(2002)
In Journal of Aerosol Science
33(7).
p.1061-1074
- Abstract
- Morphological changes of agglomerates consisting of nanometer primary gold particles were studied experimentally and theoretically. Gold aerosol nanoparticles were produced using the evaporation/condensation method, and the change in agglomerate size by reheating was examined experimentally using a tandem DMA setup. Numerical calculations, based on two extreme mechanisms to reshape agglomerates, i.e., subsequent coalescence of primary particles and subsequent rearrangement of primary particles, were carried out. By comparison with the experimental results, the sintering time and the rate constant of restructuring were obtained. Using these values, the change in particle size for different generation conditions could be calculated. The... (More)
- Morphological changes of agglomerates consisting of nanometer primary gold particles were studied experimentally and theoretically. Gold aerosol nanoparticles were produced using the evaporation/condensation method, and the change in agglomerate size by reheating was examined experimentally using a tandem DMA setup. Numerical calculations, based on two extreme mechanisms to reshape agglomerates, i.e., subsequent coalescence of primary particles and subsequent rearrangement of primary particles, were carried out. By comparison with the experimental results, the sintering time and the rate constant of restructuring were obtained. Using these values, the change in particle size for different generation conditions could be calculated. The change in morphology of agglomerates can be explained from the comparison of the experimental results with the theoretical calculations: agglomerates with smaller primary particles will compact mainly by the subsequent coalescence of primary particles, while agglomerates with larger primary particles will compact mainly by a rearrangement of primary particles. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/332702
- author
- Nakaso, K
; Shimada, M
; Okuyama, K
and Deppert, Knut
LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- primary, agglomerate, sintering, morphology change, nanoparticle, gold, particle, evaporation/condensation method
- in
- Journal of Aerosol Science
- volume
- 33
- issue
- 7
- pages
- 1061 - 1074
- publisher
- Elsevier
- external identifiers
-
- wos:000176957800007
- scopus:0036284394
- ISSN
- 0021-8502
- DOI
- 10.1016/S0021-8502(02)00058-7
- language
- English
- LU publication?
- yes
- id
- a6034f20-7106-40eb-abc2-ae3fb861cecd (old id 332702)
- date added to LUP
- 2016-04-01 16:14:36
- date last changed
- 2022-04-22 20:36:30
@article{a6034f20-7106-40eb-abc2-ae3fb861cecd,
abstract = {{Morphological changes of agglomerates consisting of nanometer primary gold particles were studied experimentally and theoretically. Gold aerosol nanoparticles were produced using the evaporation/condensation method, and the change in agglomerate size by reheating was examined experimentally using a tandem DMA setup. Numerical calculations, based on two extreme mechanisms to reshape agglomerates, i.e., subsequent coalescence of primary particles and subsequent rearrangement of primary particles, were carried out. By comparison with the experimental results, the sintering time and the rate constant of restructuring were obtained. Using these values, the change in particle size for different generation conditions could be calculated. The change in morphology of agglomerates can be explained from the comparison of the experimental results with the theoretical calculations: agglomerates with smaller primary particles will compact mainly by the subsequent coalescence of primary particles, while agglomerates with larger primary particles will compact mainly by a rearrangement of primary particles.}},
author = {{Nakaso, K and Shimada, M and Okuyama, K and Deppert, Knut}},
issn = {{0021-8502}},
keywords = {{primary; agglomerate; sintering; morphology change; nanoparticle; gold; particle; evaporation/condensation method}},
language = {{eng}},
number = {{7}},
pages = {{1061--1074}},
publisher = {{Elsevier}},
series = {{Journal of Aerosol Science}},
title = {{Evaluation of the change in the morphology of gold nanoparticles during sintering}},
url = {{http://dx.doi.org/10.1016/S0021-8502(02)00058-7}},
doi = {{10.1016/S0021-8502(02)00058-7}},
volume = {{33}},
year = {{2002}},
}