Despite the advantages, material deposition in catalysis faces several challenges:
Uniformity: Achieving a uniform distribution of catalytic material can be difficult but is crucial for optimal performance. Scalability: Techniques like ALD and CVD can be expensive and challenging to scale up for industrial applications. Stability: Ensuring the long-term stability of the deposited material under reaction conditions is another significant challenge. Compatibility: The compatibility between the catalytic material and the support must be ensured to prevent issues like sintering or leaching.