Activity
Catalyst nanoparticle shapes
In this activity, students use modelling clay to construct different shapes (sphere, cube, cylinder) and calculate surface area:volume ratios with the aim of trying to develop a more efficient shape.
Designer catalysts
John Watt describes how increasing the surface area of nanoparticles increases their performance as catalysts.
Rights: The University of Waikato
By the end of this activity, students should be able to:
understand the importance of the shape of catalysts when they are in the form of nanoparticles
explain what is meant by surface area
use mathematical formulae to calculate surface area:volume ratios
explain which shape is the most efficient.
Download the Word file for:
introduction/background notes
what you need
what to do
discussion questions
extension idea
student handout.
Published: 29 May 2008,Updated: 11 April 2014