Catalytic powders are prepared using various methods, including:
- Precipitation: This involves forming a solid from a solution, usually by changing the pH or adding a precipitating agent. - Sol-Gel Method: A chemical solution evolves into an integrated network (gel) containing both a liquid and a solid phase. - Grinding: Large catalyst particles are mechanically ground into finer powders. - Spray Drying: A liquid mixture containing the catalyst is sprayed into a hot chamber, causing the liquid to evaporate and leaving behind fine powder particles.
