Which mechanism limits reaction rate increase when using supported metal catalyst nanoparticles?

💡 Explanation

When using supported metal catalysts, sintering (aggregation of metal nanoparticles) occurs because high temperatures promote surface diffusion and reduce the overall active surface area, slowing down reaction rates. Therefore metal sintering limits reaction increases rather than other options which involve site poisoning, mass limits, or excessive stability.

• Which outcome follows the weakening of strong nuclear force?
• Which outcome occurs within a catalytic converter when the exhaust temperature exceeds maximum operating temperature?
• Which risk increases when a chiller's refrigerant feed contains non-condensable gases?
• Which consequence results when increased catalyst surface fouling?
• Which mechanism ultimately limits maximum efficiency in solid rocket propellant grain design?
• Which outcome limits maximum flow in oil pipelines?