Problem: Many metallic catalysts, particularly the precious-metal ones, are often deposited as very thin films on a substance of high surface area per unit mass, such as alumina (Al2O3) or silica (SiO2).Why is this an effective way of utilizing the catalyst material compared to having powdered metals?

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FREE Expert Solution

We have to explain why precious metal catalysts deposited on high surface area materials are more effective than powdered metals.


Metallic catalysts do not dissolve into the reaction medium (solution). They remain as solids.

Such catalysts, that do not form a solution (homogenous mixture) with the reaction medium, are called heterogenous catalysts.

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Problem Details

Many metallic catalysts, particularly the precious-metal ones, are often deposited as very thin films on a substance of high surface area per unit mass, such as alumina (Al2O3) or silica (SiO2).

Why is this an effective way of utilizing the catalyst material compared to having powdered metals?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Catalyst concept. If you need more Catalyst practice, you can also practice Catalyst practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Rathbone's class at BLINN.