Hydrogen production over Co-promoted Mo-S water gas shift catalysts supported on ZrO2
| Autor: | Vadim V. Guliants, SeongUk Yun |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010405 organic chemistry
Chemistry Process Chemistry and Technology Sulfidation chemistry.chemical_element 010402 general chemistry 01 natural sciences Catalysis Water-gas shift reaction 0104 chemical sciences symbols.namesake Monolayer symbols Raman spectroscopy Cobalt Incipient wetness impregnation Hydrogen production Nuclear chemistry |
| Zdroj: | Applied Catalysis A: General. 590:117361 |
| ISSN: | 0926-860X |
| Popis: | A series of CoMo-S/ZrO2 catalysts were prepared by modifying Co and Mo content using incipient wetness impregnation method, investigated in the water gas shift (WGS) reaction in the presence of H2S and characterized by TEM, XRD, Raman, TPR, and XPS. The supported CoMo-S catalyst corresponding to the CoMo-O monolayer coverage displayed the presence of highly dispersed CoMo-S species that were characterized by the highest extent of sulfidation. The presence of cobalt facilitated the formation of active CoMo-S species that were more H2S-dependent as compared to Mo-S entities. The Co/Mo = 0.3 catalyst at monolayer CoMo-O coverage was the most active and thermally stable, as well as the least H2S-dependent during 4 weeks of WGS reaction among all catalysts investigated. |
| Databáze: | OpenAIRE |
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