Jump to main content
Jump to site search

Issue 9, 2015
Previous Article Next Article

Synthesis of palladium nanoparticles on TiO2(110) using a beta-diketonate precursor

Author affiliations

Abstract

The adsorption of palladium hexafluoracetylacetone (Pd(hfac)2) and nucleation of Pd nanoparticles on TiO2(110) surface were observed using scanning tunneling microscopy (STM). Surface species of Pd(hfac)* and Ti(hfac)* uniformly adsorbed on TiO2(110) upon exposure of Pd(hfac)2. No preferential nucleation was observed for the surface species. Atomic resolution STM images revealed that both Pd(hfac)* and Ti(hfac)* appeared on the metastable Ti(5c) sites. After annealing at 700 K, sub-nm Pd nanoparticles were observed across the TiO2(110) without preferential nucleation. The adsorption preferences of Pd(hfac), hfac, and atomic Pd on TiO2(110) surface were studied using density functional theory (DFT), and possible decomposition pathways of Pd(hfac)2 leading to the formation of Pd nucleation sites were presented.

Graphical abstract: Synthesis of palladium nanoparticles on TiO2(110) using a beta-diketonate precursor

Back to tab navigation

Article information


Submitted
09 Dec 2014
Accepted
29 Jan 2015
First published
30 Jan 2015

Phys. Chem. Chem. Phys., 2015,17, 6470-6477
Article type
Paper
Author version available

Synthesis of palladium nanoparticles on TiO2(110) using a beta-diketonate precursor

Y. Lei, B. Liu, J. Lu, X. Lin, L. Gao, N. P. Guisinger, J. P. Greeley and J. W. Elam, Phys. Chem. Chem. Phys., 2015, 17, 6470
DOI: 10.1039/C4CP05761A

Social activity

Search articles by author

Spotlight

Advertisements