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, a PhD student at Victoria University of Wellington, 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