|
|||||
|
|
Pyrolysed carbon supported cobalt porphyrin: a potent catalyst for oxidation of hydrogen sulfide |
|
| Authors: | A. Goifman, J. Gun, V. Gitis, A. Kamyshny, Jr., O. Lev, J. Donner, H. B rnick,E. Worch |
| Affiliation: | aLaboratory of Environmental Chemistry, The Casali Institute of Applied Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel bInstitute of Water Chemistry, Dresden University of Technology, D-01062 Dresden, Germany |
| Abstract: | Pyrolysed carbon supported cobalt porphyrin, an electrocatalyst that is frequently used for oxygen reduction in fuel cells, is evaluated for catalytic oxidation of hydrogen sulfide by dissolved dioxygen. The catalyst performs best after heat treatment at 880 °C, at pH 8. Analysis of the reaction products reveals that sulfur is the dominant product throughout the investigated pH range 5–10. The catalyst performs much better than powdered activated carbon, granular activated carbon and different other forms of unmodified carbon catalysts. This is as far as we know the first time that heat treated cobalt porphyrins are evaluated for non-electrocatalytic applications. |
| Keywords: | Hydrogen sulfide Cobalt porphyrin Carbon supported catalyst Oxidation Drinking water Decontamination |
| 本文献已被 ScienceDirect 等数据库收录！ | |