A highly active and cost-effective tungsten modified Ni-based catalyst for the production of hydrogen via methane dry reforming
oleh: Ahmed S. Al-Fatesh, Jumika Golaviya, Vijay Kumar Shrivastava, Ahmed Aidid Ibrahim, Ahmed I. Osman, Anis Hamza Fakeeha, Ahmed Elhag Abasaeed, Abdulaziz A. Bagabas, Mahmud S. Lanre, Rawesh Kumar, Abrar Hussain, Kuen-Song Lin
| Format: | Article |
|---|---|
| Diterbitkan: | Elsevier 2022-11-01 |
Deskripsi
Catalyst community requires a low-cost, high-performance catalyst immediately for cost-effective H2 production through dry reforming of methane. Herein, cost-effective 1–9 wt% tungsten oxide-alumina supported Ni catalysts were prepared, examined and characterized by x-ray diffraction, 27Al solid-state nuclear magnetic resonance, X-ray photoelectron spectroscopy, high resolution-transmission electron microscopy and temperature programmed experiments. On 5.0 wt% W incorporation; minimum crystallinity, additional CO2-surface interacting species, maximum oxygen replenishment capacity by CO2, thermally retainable coordinated Al sites and minimum % weight loss pivot optimum hydrogen production 77% H2 yield, minimum deactivation factor −0.9, and maximum rate of hydrogen formation of 1.1301 molH2gcat−1h−1 at 440-min time-on-stream.