Palladium on carbon
| Names | |
|---|---|
| IUPAC name
Palladium | |
| Other names
Palladium on carbon, Pd/C, Pd-C | |
| Identifiers | |
| 7440-05-3 | |
| EC Number | 231-115-6 |
| Jmol interactive 3D | Image |
| PubChem | 23938 |
| UNII | 5TWQ1V240M |
| |
| |
| Properties | |
| Pd | |
| Molar mass | 106.42 |
| Appearance | Black powder |
| Solubility | Aqua regia |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Palladium on carbon, often referred to as Pd/C, is a form of palladium used as a catalyst.[1] The metal is supported on activated carbon in order to maximize its surface area and activity.
Uses
Catalytic hydrogenation
Palladium on carbon is used for catalytic hydrogenations in organic synthesis. Examples include carbonyl reduction, nitro compound reduction, and the reduction of imines and Schiff bases.[1]
Coupling reactions
Palladium on carbon is also used for coupling reactions. Examples include the Suzuki reaction and Stille reaction.[2]
Preparation
Palladium on carbon can be prepared in the laboratory using a hydrochloric acid solution of palladium(II) chloride treated with hydrated sodium acetate followed by washing activated carbon with nitric acid.[3] The mixture is then hydrogenated. Palladium loading is typically between 5% and 10%.
See also
- Palladium black
- Platinum on carbon
- Platinum dioxide
- Rhodium-platinum oxide
- Lindlar catalyst
- Raney nickel
- Urushibara nickel
References
- 1 2 Nishimura, Shigeo (2001). Handbook of Heterogeneous Catalytic Hydrogenation for Organic Synthesis (1st ed.). Newyork: Wiley-Interscience. pp. 34–38. ISBN 9780471396987.
- ↑ Liebeskind, Lanny S.; Peña-Cabrera, Eduardo (2000). "Stille couplings catalyzed by palladium-on-carbon with CuI as a co-catalyst: synthesis of 2-(4'-Acetylhenyl)thiophene". Organic Syntheses 77: 138. doi:10.15227/orgsyn.077.0135.
- ↑ Mozingo, Ralph (1946). "Palladium catalysts". Organic Syntheses 26: 77. doi:10.15227/orgsyn.026.0077.