nanomaterials Flashcards
1
Q
what is a nanometer?
A
a nanometer is something we manufacture that is very small.
2
Q
how small is a nanometer?
A
it is 10 to the power of negative 9 (10^-9) which is a thousandth of a micrometer.
3
Q
what are nanomaterials?
A
they are substances composed of particles ranging from 1-100 nanometers.
4
Q
what is the surface-to-volume ratio of a nanoparticle?
A
3/r (r being radius)
5
Q
what does the surface-to-volume ratio of a nanoparticle improve?
A
chemical reactivity (e.g. good for batteries, fuel cells, and catalysts).
