Journal
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
Volume 32, Issue 6, Pages 1005-1009Publisher
HIGHER EDUCATION PRESS
DOI: 10.1007/s40242-016-6130-6
Keywords
Carbon dioxide; Reverse co-precipitation; Methanol; Catalytic hydrogenation; Copper based catalyst
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Funding
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China [2013-1792]
- Ministry of Human Resources and Social Security, China [2013-277]
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A series of 50% CuO-25%ZnO-25%Al(Zr) oxide catalysts was synthesized by a reverse co-precipitation method and characterized by XRD, N-2 adsorption-desorption, H-2-TPR, H-2-TPD and CO2-TPD, and used as catalyst for CO2 hydrogenation to methanol under mild conditions(200-260 degrees C and 1-3 MPa). Consequently, H-2-TPR exhibited that the dispersed CuO species increased with the zirconium content, while the H-2-TPD showed that small amount of zirconia can increase the H-2 desorption amount. As a result, Cat-2 and Cat-3 exhibited an enhanced H-2-spillover effect, the most H-2 desorption amount, which showed an optimum activity of about 7% methanol yield.
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