Enhanced sintering resistance of bimetal/SBA-15 catalysts with promising activity under a low temperature for CO methanation.

ABSTRACT: According to its thermodynamic equilibrium analysis and strong exothermic characteristics, the major challenge of syngas methanation is to develop a high-efficient low-temperature catalyst with superior sintering resistance. In this study, bimetal-based SBA-15 catalysts were prepared via a citric acid-assisted impregnation method and applied in CO methanation. The obtained catalysts were characterized via X-ray diffraction, N₂ adsorption-desorption, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, H₂ temperature-programmed reduction and other techniques. Combining the structural characterization of the fresh and used catalyst, the function of the organic additive and metal promoters was revealed. The catalysts exhibited

SUBMITTER: Tao M 

PROVIDER: S-EPMC9054305 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature