Five-metal 2D catalysts could convert CO₂ to CO without needing an extra electrical boost

Carbon dioxide (CO₂) is usually discussed as something the world needs to get rid of. Activities such as the burning of fossil fuels for daily use, including electricity and transportation, and industrial applications release significant amounts of CO₂, and the gas enters the atmosphere. Researchers are now asking whether this road could have a roundabout. W

The top 3

  1. Three Most Efficient CO₂ to CO Catalysts: Highly efficient catalysts for CO₂ to CO conversion include cadmium sulfide (CdS) nanoneedle arrays achieving 212 mA·cm⁻² at ~95.5% selectivity, single nickel (Ni) atoms on graphene nanosheets with up to 97% efficiency, and certain Co-based complexes showing high turnover numbers and 97% selectivity.
  2. Biggest Challenges in CO₂ Reduction Catalysis: Major challenges include the high energy barrier for CO₂ activation, low product selectivity for valuable multi-carbon products, limited catalyst stability and lifespan, and issues with scaling up laboratory results to industrial applications due to mass transfer limitations and high costs.
  3. Three Promising CO₂ Conversion Products Beyond CO: Beyond CO, other valuable products from CO₂ conversion include ethanol (a fuel and household chemical), formic acid (a preservative and industrial chemical), and ethylene (a precursor for plastics).

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