Issue 31, 2014

Palladium nanoparticles in situ generated in metal–organic films for catalytic applications

Abstract

Palladium nanoparticles were first in situ generated in metal–organic films for catalytic applications. Layer-by-layer assembly of metal–organic films consisting of rigid-rod chromophores connected by terminal pyridine moieties to palladium centers on solid substrates was presented. Bipyridyl and polypyridyl ligands were used as building blocks to explore the influence of different ligand structures on catalytic properties. Metal–organic films were characterized by UV-Vis spectra, atomic force microscopy (AFM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results show that the deposition mechanism of metal–organic films is perfect layer-by-layer self-assembling with complete surface coverage and regular growth. Moreover, the catalytic activity toward the hydrogenation of olefin was investigated. Based on XPS and TEM, the catalytic activity toward the hydrogenation of olefin was ascribed to the in situ formation of Pd nanoparticles from Pd ions in metal–organic films. This film material is an active catalyst for the hydrogenation of olefin under mild conditions. Furthermore, catalytic results indicated that monodentate bipyridyl ligands exhibited superior catalytic activity than tridentate polypyridyl ligands. Catalytic activity is related to the loading amount of catalysts and permeability. More importantly, this study points toward the potential application of metal–organic films as heterogeneous catalysts with easy separation and good recyclability.

Graphical abstract: Palladium nanoparticles in situ generated in metal–organic films for catalytic applications

Supplementary files

Article information

Article type
Paper
Submitted
02 Apr 2014
Accepted
02 Jun 2014
First published
02 Jun 2014

J. Mater. Chem. A, 2014,2, 12185-12193

Author version available

Palladium nanoparticles in situ generated in metal–organic films for catalytic applications

S. Gao, M. Cao, W. Li and R. Cao, J. Mater. Chem. A, 2014, 2, 12185 DOI: 10.1039/C4TA01592D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements