Deposition of Pd nanoparticles on ultrathin Al2O3 films

Author

Wu, Qi-Hui ; Petram, Tobias ; Becker, Conrad ; Wandelt, Klaus

Author_Institution

Dept. of Phys., La Trobe Univ., Bundoora, VIC, Australia

fYear

2010

fDate

20-23 Jan. 2010

Firstpage

17

Lastpage

20

Abstract

It is widely accepted that self-assembling nanostructure of metals with well-defined spatial order is one of the promising ways for engineering new materials. Recent years revealed substantial progress in fabricating metal nanoparticles on ultrathin oxide films due to their ordered surface. In this work, we present the results on the adsorption of Pd nanoparticles on the ultrathin Al₂O₃ films prepared on the Ni₃Al(111) substrate. The thermal stability of the Pd nanoparticles has been studied. The results showed that the Pd nanoparticles with size of about 4 nm are stable at 580 K, but aggregation of the Pd nanoparticles was found at 730 K.

Keywords

adsorption; aggregation; nanofabrication; nanoparticles; palladium; particle size; thermal stability; Al₂O₃; Ni₃Al (111) substrate; Pd; adsorption; aggregation; nanoparticles; self-assembling nanostructure; temperature 580 K; temperature 730 K; thermal stability; ultrathin oxide films; Pd; thermal properties; ultrathin Al2O3 film;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems (NEMS), 2010 5th IEEE International Conference on

Conference_Location

Xiamen

Print_ISBN

978-1-4244-6543-9

Type

conf

DOI

10.1109/NEMS.2010.5592132

Filename

5592132