Breakthrough in Carbon Recycling: New Catalysts Boost Efficiency

Strategic Insights -

Researchers at Henan University of Science and Technology have developed a series of layered perovskite catalysts, LaMCuO (M = Ca, Sr, Ba), which exhibit significantly improved selectivity and stability for carbon oxidation reduction (CORR). The breakthrough offers a promising route for carbon recycling and climate change mitigation. The optimized catalyst achieves a Faradaic efficiency of 78.23% for ethylene (CH) at a partial current density of 199.48 mA cm(-2) at -1.2 V vs. RHE, representing a fivefold improvement in selectivity over pristine LaCuO (LCO). Moreover, the catalyst maintains performance over 120 hours, demonstrating an eightfold enhancement in operational stability.

Key Takeaways:

  • The research team developed a series of layered perovskite catalysts, LaMCuO (M = Ca, Sr, Ba), which exhibit improved selectivity and stability for CORR.
  • The optimized LSrCO catalyst achieves a Faradaic efficiency of 78.23% for ethylene (CH) at a partial current density of 199.48 mA cm(-2) at -1.2 V vs. RHE, a fivefold improvement in selectivity over pristine LaCuO (LCO).
  • The LSrCO catalyst maintains performance over 120 hours, demonstrating an eightfold enhancement in operational stability.
  • The research concluded that this work outlines a general strategy for designing high-performance copper-based perovskite electrocatalysts and provides new design principles for efficient and durable CO conversion.
  • The study has been peer-reviewed and published in the Journal of Colloid and Interface Science.
  • The research team, led by Changrui Shi, includes Hao Hu, Bo Zhao, Yuhao Li, Bo Sun, Kexing Song, Hao Liang, Yamei Sun, and Haoyan Cheng.

Statistics:

  • The optimized LSrCO catalyst achieves a Faradaic efficiency of 78.23% for ethylene (CH) at a partial current density of 199.48 mA cm(-2) at -1.2 V vs. RHE.
  • The LSrCO catalyst maintains performance over 120 hours, demonstrating an eightfold enhancement in operational stability.
  • The research team reported a fivefold improvement in selectivity over pristine LaCuO (LCO).
  • The study has been published in the Journal of Colloid and Interface Science, Volume 703, Issue 139161.

Sources:

  • NewsRx. Studies from Henan University of Science and Technology Yield New Data on Engineering (Precise CuO bond length engineering via alkaline-earth modulation breaks activity-stability trade-off in CO2-to-ethylene electrocatalysis). Journal of Engineering. October 20, 2025; p 4627.
  • Precise CuO bond length engineering via alkaline-earth modulation breaks activity-stability trade-off in CO2-to-ethylene electrocatalysis. Journal of Colloid and Interface Science, 2025;703:139161.