Fe-Cu-Zn Trimetallic Catalysts: Role of Molar Composition in Producing Light Olefins from CO₂ Hydrogenation
Faculty Mentor
Cheng Zheng
Area of Research
Inorganic Chemistry
Major
Health Science
Description
INTRODUCTION: Carbon dioxide (CO₂) remains a primary driver of global climate change and rising sea levels, necessitating innovative mitigation strategies. This study investigates the catalytic performance of Fe-Cu-Zn trimetallic systems in the hydrogenation of CO₂ to value-added products, specifically light olefins.
METHODS: We systematically examined the influence of Fe-Cu-Zn molar ratios (10:1:1, 5:1:1, 3:1:1, and 1:1:1) on catalytic efficiency and selectivity. Diverging from traditional synthesis, this work utilizes Fe²⁺ and Zn²⁺ organometallic complexes alongside copper acetate precursors, successfully bypassing the conventional pre-test calcination step. Following solvent evaporation and mild thermal treatment, the catalysts were evaluated in a fixed-bed flow reactor, with products analyzed via online gas chromatography.
RESULTS: The results identify the 1:1:1 molar ratio as the optimal configuration, yielding the highest selectivity for light olefins.
CONCLUSION: These findings underscore the potential of Fe-Cu-Zn trimetallic catalysts as a viable pathway for sustainable CO₂ valorization and greenhouse gas reduction.
Fe-Cu-Zn Trimetallic Catalysts: Role of Molar Composition in Producing Light Olefins from CO₂ Hydrogenation
INTRODUCTION: Carbon dioxide (CO₂) remains a primary driver of global climate change and rising sea levels, necessitating innovative mitigation strategies. This study investigates the catalytic performance of Fe-Cu-Zn trimetallic systems in the hydrogenation of CO₂ to value-added products, specifically light olefins.
METHODS: We systematically examined the influence of Fe-Cu-Zn molar ratios (10:1:1, 5:1:1, 3:1:1, and 1:1:1) on catalytic efficiency and selectivity. Diverging from traditional synthesis, this work utilizes Fe²⁺ and Zn²⁺ organometallic complexes alongside copper acetate precursors, successfully bypassing the conventional pre-test calcination step. Following solvent evaporation and mild thermal treatment, the catalysts were evaluated in a fixed-bed flow reactor, with products analyzed via online gas chromatography.
RESULTS: The results identify the 1:1:1 molar ratio as the optimal configuration, yielding the highest selectivity for light olefins.
CONCLUSION: These findings underscore the potential of Fe-Cu-Zn trimetallic catalysts as a viable pathway for sustainable CO₂ valorization and greenhouse gas reduction.