5.2.3.3 Graphene and Fullerenes Flashcards
1
Q
What is graphene?
A
- a single layer of graphite
2
Q
What are graphene’s properties?
A
- extremely strong
- lightweight, flexible
- an excellent conductor of heat and electricity
3
Q
Why is graphene very strong?
A
- atoms within its layers are tightly bonded
4
Q
Why is graphene elastic?
A
- planes of atoms can flex relatively easily without them breaking apart
5
Q
What is graphene useful in?
A
- electronics
- composites
6
Q
What are fullerenes?
A
- molecules of carbon atoms with hollow shapes
7
Q
What is fullerene’s structure?
A
- based on hexagonal rings of carbon atoms
- may contain rings with five or seven carbon atoms
8
Q
What was the first fullerene discovered?
A
- Buckministerfullerene (C60)
- spherical shape
9
Q
What are carbon nanotubes?
A
- cylindrical fullerences
- very high length to diameter ratio
10
Q
What do their properties make them useful for?
A
- nanotechnology
- electronics
- materials
11
Q
What are examples of uses of carbon nanotubes?
A
- lubricants
- deliver drugs in the body
- catalysts
- reinforcing materials
