What Are the Challenges Associated with Interstitials in Catalysts?
While interstitials can enhance catalytic performance, they also pose challenges:
1. Stability: Interstitials can migrate or recombine with vacancies, leading to a loss of catalytic activity over time.
2. Characterization: Detecting and characterizing interstitials can be difficult due to their small size and the complexity of their interactions with the lattice.
3. Control: Precisely controlling the concentration and distribution of interstitials remains a significant challenge in catalyst design.
