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GCSE Chemistry AQA > 2.4 Nanoparticles > Flashcards

2.4 Nanoparticles Flashcards

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1
Q

What are nanoparticles?

A

1-100 nanometres across

Contain a few hundred atoms

Very high surface area to volume ratio

Involve fullerenes

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2
Q

Why do nanoparticles have different properties to their bulk chemicals?

A

Extremely high surface area to volume ratio

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3
Q

What are nanoparticles used for?

A

Catalysts
Highly selective sensors
Stronger, lighter building materials
Lubricants
Small electrical circuits (as they conduct electricity)

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4
Q

What are the disadvantages of nanoparticles?

A

Because they are so small they may be able to enter the brain from the blood stream causing harm

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GCSE Chemistry AQA (18 decks)

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