How to Measure the Efficiency of Heterogeneous Catalysts?
Efficiency can be assessed through several performance metrics:
Turnover Frequency (TOF) TOF measures the number of reaction events per active site per unit time. Higher TOF values indicate more efficient catalysts.
Turnover Number (TON) TON represents the total number of reactions that a single active site can facilitate before becoming inactive.
Selectivity Selectivity refers to the catalyst's ability to favor the formation of a desired product. High selectivity reduces the need for post-reaction separation processes.
Stability and Lifetime A catalyst's stability and operational lifetime are crucial for practical applications, reducing the frequency of catalyst replacement and associated costs.