Role of Zr in Fe–Zr Catalysts for CO₂-to-Olefins Conversion: Comparison with Fe Catalyst
Faculty Mentor
Cheng Zhang
Area of Research
Chemistry
Major
Veterinary Technology
Description
Climate change has significantly impacted the global environment over the past century, necessitating the development of innovative strategies to mitigate CO₂ emissions. One promising approach is the catalytic hydrogenation of CO₂ into high-value chemicals such as light olefins. This study is a continuation of previous research on the effect of Fe-Zr molar ratios on catalytic performance for CO₂ hydrogenation, where the Fe/Zr = 10:1 ratio demonstrated superior activity and selectivity. Building on these findings, this study investigates the influence of support materials on catalytic efficiency. Varying supports, including CeO₂, Al₂O₃, SiO₂, TiO₂, ZrO₂, and ZSM-5, were added to the Fe/Zr = 10:1 solution mixture, and the resulting supported Fe-Zr catalysts were synthesized using the solvent evaporation method. The catalysts were evaluated in a flow-bed reactor over a temperature range of 275–400°C, with product distribution analyzed via on-line gas chromatography (GC). While testing is still ongoing, preliminary results indicate that catalytic performance varies depending on the support material, highlighting its crucial role in CO₂ conversion efficiency. This research provides valuable insights into the impact of different supports on Fe-Zr-based catalysts and contributes to the development of optimized catalytic systems for sustainable CO₂ utilization.
Role of Zr in Fe–Zr Catalysts for CO₂-to-Olefins Conversion: Comparison with Fe Catalyst
Climate change has significantly impacted the global environment over the past century, necessitating the development of innovative strategies to mitigate CO₂ emissions. One promising approach is the catalytic hydrogenation of CO₂ into high-value chemicals such as light olefins. This study is a continuation of previous research on the effect of Fe-Zr molar ratios on catalytic performance for CO₂ hydrogenation, where the Fe/Zr = 10:1 ratio demonstrated superior activity and selectivity. Building on these findings, this study investigates the influence of support materials on catalytic efficiency. Varying supports, including CeO₂, Al₂O₃, SiO₂, TiO₂, ZrO₂, and ZSM-5, were added to the Fe/Zr = 10:1 solution mixture, and the resulting supported Fe-Zr catalysts were synthesized using the solvent evaporation method. The catalysts were evaluated in a flow-bed reactor over a temperature range of 275–400°C, with product distribution analyzed via on-line gas chromatography (GC). While testing is still ongoing, preliminary results indicate that catalytic performance varies depending on the support material, highlighting its crucial role in CO₂ conversion efficiency. This research provides valuable insights into the impact of different supports on Fe-Zr-based catalysts and contributes to the development of optimized catalytic systems for sustainable CO₂ utilization.