التفاصيل البيبلوغرافية
| العنوان: |
Operandoinvestigations of strong metal-support interaction during catalysis |
| المؤلفون: |
Yu, Jiaqi, Notestein, Justin M., Sargent, Edward Hartley |
| المصدر: |
Matter; August 2023, Vol. 6 Issue: 8 p2544-2547, 4p |
| مستخلص: |
Pretreatment conditions dramatically alter the active surface of catalytic materials, influencing their performance. In a recent study, Monai et al. investigated the structural evolution of nickel nanoparticles (Ni NPs) supported on the reducible oxide TiO2during the CO2hydrogenation reaction. Operandoelectron microscopy showed the formation of TiOxbilayers during reductive pretreatments at 400°C, while thicker TiOxoverlayers were generated during more aggressive pretreatment at 600°C. Under CO2hydrogenation conditions, the TiOxbilayers receded, but small TiOxdomains remained on the Ni/TiO2materials that underwent pretreatment at 600°C. The partially intact TiOxoverlayer led to an extensive interface between Ni and TiOx, improving catalytic activity and selectivity toward C2+products that are particularly desired in CO2utilization schemes. |
| قاعدة البيانات: |
Supplemental Index |
