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CuO-ZnO-Al 2 O 3 catalysts were synthesized by two methods, sol-gel and co-precipitation syntheses. Al 2 O 3 was then substituted with other supports, such as ZrO 2 , CeO 2 and CeO 2 -ZrO 2 in order to have a better understanding of the support's effect. These catalysts containing 30 wt% of Cu were then tested for CO 2 hydrogenation into methanol. The effect of reaction temperature and GHSV on the catalytic behaviour was also investigated. The best results were obtained with a 30 CuO-ZnO-ZrO 2 catalyst synthesized by coprecipitation and calcined at 400 8C. This catalyst presents a good CO 2 conversion rate (23%) with 33% of methanol selectivity, leading to a methanol productivity of 331 g MeOH .kg cata À1 Áh À1 at 280 8C under 50 bar and a GHSV of 10,000 h À1 .