A hydrogen fuel cell uses platinum to catalyse the reaction between hydrogen and oxygen.
Suggest why a given mass of platinum is much more effective as a catalyst when used as nanoparticles rather than as a larger-grained powder.
Practise Edexcel GCSE Chemistry Bulk and surface properties of matter including nanoparticles with exam-style questions for Foundation and Higher tier. 63 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
