| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 41112 | Applied Catalysis A: General | 2012 | 7 Pages |
The effect of functionalising agents (KMnO4 and HNO3) on the surface properties of carbon spheres (CSs) produced from acetylene gas by a chemical vapour deposition method, was examined. Cobalt was loaded onto the differently functionalised CSs using the deposition precipitation (DPU) method and the Co/CS catalysts were tested for Fischer–Tropsch (FT) activity. FT studies, revealed differences in activity and selectivity for the HNO3 and KMnO4 functionalised catalysts. Investigation of the role of Mn (0.05%) and K (0.05%) on Co/CS FT catalysts functionalised with HNO3 revealed that these differences were due to the presence of residual MnO4− ions remaining after the surface functionalisation reaction.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (131 K)Download as PowerPoint slideHighlights► Carbon spheres (CSs) preparation by a direct chemical vapour deposition method. ► CSs functionalisation by KMnO4 and HNO3 functionalising agents. ► 5% Co/CS KMnO4 functionalised and 5% Co/CS HNO3 functionalised catalyst evaluation in FTS. ► Investigation of K and Mn promoter effects on 5% Co/CS HNO3 catalysts in FTS.
