The mechanism of CO 2 methanation over Ru/ZrO 2 catalyst has been studied by means of diffuse reflectance infrared Fourier-transform spectroscopy. The results indicate that the formation of carbon-containing species o...The mechanism of CO 2 methanation over Ru/ZrO 2 catalyst has been studied by means of diffuse reflectance infrared Fourier-transform spectroscopy. The results indicate that the formation of carbon-containing species on the surface of catalyst is involved in the catalytic process. The adsorbed carbonate, formate and carbon monoxide can be detected on the surface of Ru/ZrO 2 catalyst. The surface carbonate and formate are much more abundant than the surface carbon monoxide. The surface carbonate and formate are main intermediates for the catalytic methanation of CO 2 over Ru/ZrO 2 catalyst, which can be directly hydrogenated to methane in the presence of hydrogen.展开更多
文摘The mechanism of CO 2 methanation over Ru/ZrO 2 catalyst has been studied by means of diffuse reflectance infrared Fourier-transform spectroscopy. The results indicate that the formation of carbon-containing species on the surface of catalyst is involved in the catalytic process. The adsorbed carbonate, formate and carbon monoxide can be detected on the surface of Ru/ZrO 2 catalyst. The surface carbonate and formate are much more abundant than the surface carbon monoxide. The surface carbonate and formate are main intermediates for the catalytic methanation of CO 2 over Ru/ZrO 2 catalyst, which can be directly hydrogenated to methane in the presence of hydrogen.
