Molecular-level understanding of support effects on the regenerability of Ru-based catalysts in the sulfur-poisoned methanation reaction

• Published in: Journal of catalysis Vol. 375; pp. 74 - 80
• Main Authors: Kuzmenko, D., Nachtegaal, M., Copéret, C., Schildhauer, T.J.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.07.2019
• Subjects: CO methanation; Diffuse reflectance infrared Fourier transform spectroscopy; In situ; Oxidative regeneration; Sulfur poisoning; Support effect; X-ray absorption spectroscopy; Diffuse reflectance infrared Fourier transform spectroscopy; In situ; Oxidative regeneration; Support effect; X-ray absorption spectroscopy; CO methanation; Sulfur poisoning

[Display omitted] •Ru/SiO2 produces more CH4 than Ru/Al2O3 after several S poisoning–regeneration cycles.•SiO2 has a smaller S storage capacity as S+6 than Al2O3 when oxidatively regenerated.•Sads on Ru nanoparticles appears to stabilize them against sintering during oxidation. The production of syn...