How is Nanotechnology Applied in the Manufacturing of Catalysts?
The application of nanotechnology in automotive catalysts involves several key steps: 1. Synthesis of Nanoparticles: Various methods like chemical vapor deposition (CVD), sol-gel processes, and precipitation techniques are used to create nanoparticles of noble metals. 2. Support Materials: These nanoparticles are often dispersed on support materials such as cerium oxide (CeO2) or aluminum oxide (Al2O3) to maximize their surface area and stability. 3. Coating and Integration: The nano-enhanced catalysts are then coated onto a monolithic substrate, usually made of ceramic or metal, which is integrated into the vehicle's exhaust system.
