Abstract
A novel gold catalyst supported by In2O3-ZrO2 with a solid solution structure shows a methanol selectivity of 70.1% and a methanol space–time yield (STY) of 0.59 gMeOH h−1 gcat−1 for CO2 hydrogenation to methanol at 573 K and 5 MPa. The ZrO2 stabilizes the structure of In2O3, increases oxygen vacancies, and enhances CO2 adsorption, causing the improved activity.
Highlights
With the development of renewable hydrogen, hydrogenation of CO2 to methanol (Equation (1)) has received increasing attention worldwide
Significant efforts have been made towards the preparation of catalysts with high CO2 conversion and high methanol selectivity
In 2012, our group predicted via density functional theoretical (DFT) studies that In2 O3 possesses high activity for CO2 activation [9]
Summary
With the development of renewable hydrogen, hydrogenation of CO2 to methanol (Equation (1)) has received increasing attention worldwide. Were reported to have nice activity for CO2 hydrogenation to methanol. This strong interaction causes a total change in catalytic performance It makes the Ni, Au, Rh, and Pt catalysts become highly selective towards CO2 hydrogenation to methanol with In2 O3 support. The In2 O3 -supported Au catalyst shows the highest selectivity and best activity ever reported for CO2 hydrogenation to methanol. We confirm that the In2 O3 -ZrO2 supported Au catalyst presents even higher activity for Catalysts 2020, 10, x FOR. In2 O3 -ZrO2 oxides were prepared via a co-precipitation method, and Au nanoparticles
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