Abstract
The hydrogenation of CO2 was investigated over Ru/χ-Al2O3 catalyst prepared by thermal decomposition of gibbsite which was followed with impregnation using different types of ruthenium precursors. The performance of the catalysts was examined by the temperature programmed reaction of CO2 with H2. The Ru/χ-Al2O3 catalyst prepared using ruthenium (III) nitrosyl nitrate solution as the Ru source (RNN) exhibited the best performance, compared to other Ru precursors. The physiochemical properties of each catalyst were characterized using XRD diffraction, N2 physisorption and H2 chemisorption.
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