Despite their advantages, colloidal catalysts face several challenges. One of the main issues is the difficulty in separating and recovering the catalyst from the reaction mixture. Additionally, the stability of colloidal catalysts can be compromised under certain reaction conditions, leading to aggregation or leaching of active species. Another challenge is the need for precise control over the synthesis process to achieve uniform size and shape of the colloids. Ongoing research aims to address these challenges through the development of novel synthesis techniques and stabilizing agents.
