Evaluation of the change in the morphology of gold nanoparticles during sintering

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Standard

Evaluation of the change in the morphology of gold nanoparticles during sintering. / Nakaso, K; Shimada, M; Okuyama, K; Deppert, Knut.

I: Journal of Aerosol Science, Vol. 33, Nr. 7, 2002, s. 1061-1074.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

APA

CBE

MLA

Vancouver

Author

Nakaso, K ; Shimada, M ; Okuyama, K ; Deppert, Knut. / Evaluation of the change in the morphology of gold nanoparticles during sintering. I: Journal of Aerosol Science. 2002 ; Vol. 33, Nr. 7. s. 1061-1074.

RIS

TY - JOUR

T1 - Evaluation of the change in the morphology of gold nanoparticles during sintering

AU - Nakaso, K

AU - Shimada, M

AU - Okuyama, K

AU - Deppert, Knut

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

KW - primary

KW - agglomerate

KW - sintering

KW - morphology change

KW - nanoparticle

KW - gold

KW - particle

KW - evaporation/condensation method

U2 - 10.1016/S0021-8502(02)00058-7

DO - 10.1016/S0021-8502(02)00058-7

M3 - Article

VL - 33

SP - 1061

EP - 1074

JO - Journal of Aerosol Science

T2 - Journal of Aerosol Science

JF - Journal of Aerosol Science

SN - 0021-8502

IS - 7

ER -