What are the Key Performance Metrics for Catalysts?
The performance of a catalyst for CO2 reduction is typically evaluated based on several key metrics:
Activity: This refers to the rate at which the catalyst converts CO2 to desired products, usually measured in terms of turnover frequency (TOF) or current density in electrocatalytic systems. Selectivity: This measures the fraction of the total converted CO2 that forms the desired product. High selectivity is crucial for practical applications to minimize by-products and improve process efficiency. Stability: Catalysts must maintain their activity and selectivity over extended periods to be viable for industrial applications. Stability is often assessed through long-term testing and cycling experiments. Faradaic Efficiency: In electrocatalytic systems, this metric indicates the efficiency with which electrons are used to produce the desired product, rather than being lost to side reactions.
