1. Palladium-Catalyzed Oxidative Coupling using Nanoparticle Catalysts
Helena Hagelin-Weaver, Department of Chemical Engineering, University of Florida
Our research has revealed that palladium precipitated onto a nanoparticle alumina support is a better catalyst for the coupling of 4-methyl pyridine than commonly used Pd/C catalysts despite the fact that commercially available Pd/alumina are poor catalysts. In addition, impregnation of palladium onto the nanoparticle alumina support results in poor catalysts.
Catalyst Description
Raw Product Yield
[g/g Pd]
Pd Surface Area
[m2/g]
Yield
[g/g Surface Pd]
5% Pd Precipitated on nano-Al2O3(+) 53
7.6
152
5% Pd/C Commercial 36
5.2
155 16 71
5% Pd/Al2O3 Commercial
2.5
2.2 25
5% Pd Impregnated on nano-Al2O3(+) 4
3.0 29
5% Pd Precipitated on nano-Al2O3(-) 6
0.6
230