457534 Discovery of Superior Cu-GaOx-HoOy Catalysts for the Reduction of Carbon Dioxide to Methanol at Atmospheric Pressure

Wednesday, November 16, 2016: 8:30 AM
Franciscan C (Hilton San Francisco Union Square)
Bahman Zohour, Chemical and Biomolecular Engineering, UCLA, Los Angeles, CA and Selim Senkan, UCLA, Los Angeles, CA

Catalytic conversion of carbon dioxide to liquid fuels and basic chemicals using solar-derived hydrogen at or near ambient pressure is a highly desirable goal in heterogeneous catalysis. When realized, this technology will pave the way for a sustainable society together with decentralized power generation. Here we report a novel class of superior holmium (Ho) containing multi-metal oxide Cu catalysts discovered through the application of high-throughput methods. In particular, ternary systems of Cu-GaOx-HoOy > Cu-CeOx-HoOy ~ Cu-LaOx-HoOy supported on γ-Al2O3 exhibited superior methanol activities (10x) with less CO production than previously reported catalysts at 1 atm pressure. Holmium was shown to form highly dispersed 1-3 atom clusters, thus exhibit a dopant effect in promoting CH3OH formation over larger (5-7 nm) Cu and Ga clusters.

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See more of this Session: Catalysis for C1 Chemistry I: CO2 Conversion
See more of this Group/Topical: Catalysis and Reaction Engineering Division