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Which risk increases when metallic nanoparticles aggregate at interfaces?

A)Reduced catalytic surface area
B)Increased quantum dot efficiency
C)Enhanced plasmonic resonance coupling
D)Improved electron orbital hybridization

💡 Explanation

Reduced catalytic surface area occurs because aggregation diminishes the reactive surface area; sintering (Ostwald ripening) is the mechanism. This outcome is triggered because less surface is active, therefore A is preferable, rather than enhanced activity achieved by quantum effects in nanoscale systems.

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