Disintegrative activation of Pd nanoparticles on carbon nanotubes for catalytic phenol hydrogenation
Document Type
Article
Publication Date
1-1-2016
Abstract
The strong dependence of catalytic activity and selectivity on the size of nanoparticles has imposed great value on facile methods for tailoring metal nanoparticles (NPs) with uniform dispersion on a heterogeneous support. Here, a simple and effective method for re-activating sintered Pd NPs decorated on carbon supports is demonstrated using HNO3 vapour at mild temperatures in a closed system, without loss in the Pd content. We further reveal that nitrogen oxide play an important role in the re-dispersion of Pd NPs. In a catalytic phenol hydrogenation reaction, the re-dispersed NPs exhibit superior catalytic activity as compared to sintered Pd NPs supported on CNTs.
Keywords
Carbon, Carbon nanotubes, Catalyst activity, Chemical activation, Dispersions, Hydrogenation, Metal nanoparticles, Nanoparticles, Nitrogen oxides, Phenols, Sintering, Yarn
Divisions
Science
Funders
NSFC (National Natural Science Foundation of China) (21133010, 21473233, 51221264, 21261160487),"Strategic Priority Research Program" of the Chinese Academy of Sciences, Grant No. XDA09030103
Publication Title
Catalysis Science and Technology
Volume
6
Issue
4
Publisher
Royal Society of Chemistry