Catalytic methanation over nanoparticle heterostructure of Ru/Fe/Ce/γ-Al2O3 catalyst: Performance and characterisation

Malik Muhammad Asif Iqbal, Susilawati Toemen, Wan Azelee Wan Abu bakar, Fazira Ilyana Abdul Razak, Salmiah Jamal Mat Rosid and Nur Izyan Wan Azelee

Renewable Energy, 2020, vol. 162, issue C, 513-524

Abstract: A novel trimetal-oxides (Ru/Fe/Ce) supported on γ-Al2O3 catalyst was synthesised by simple impregnation method and the activity was investigated at atmospheric pressure. The results showed that Ru/Fe/Ce (5:10:85)/γ-Al2O3 catalyst calcined at 1000 °C for 5 h was effective and gave a 97.20% of CO2 conversion at 275 °C with 93.5% of CH4 formation. The catalyst possesses medium-strength basic sites with the best reduction temperature of <200 °C. The mesoporous structure was covered with small, dispersed particles of spherical in shape. The catalyst is formed by nanoparticles below 10 nm with a surface area of 51 m2/g. The physicochemical analyses showed that the active sites of the potential catalyst Ru/Fe/Ce (5:10:85)/γ-Al2O3 are RuO2 (tetragonal), Fe2O3 (rhombohedral), γ-Al2O3 (cubic), and CeO2 (cubic), with a good distribution on the catalyst surface.

Keywords: Cerium; Metal oxide; Catalysts; Carbon dioxide; Methane (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:162:y:2020:i:c:p:513-524

DOI: 10.1016/j.renene.2020.06.093

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