Eventos
Sumio Iijima discovered the concept
of single wall nanotubes at the
Tsukuba Research Laboratory in Japan.Iijima discovered multi-wall nanotubes
at Tsukaba Research Lab in Japan.The first theories of the nanotubes
electronic properties done by
by groups at the Naval Research Lab,
USA.Swiss researchers demonstrate electron
emission properties of carbon nanotubesPeríodos
WHAT ARE NANOTUBES?---
"A tubular molecule composed of a large number of
carbon atoms" [google definitions]WHAT IS THE DIFFERENCE
BETWEEN SINGLE WALL AND MULTI WALL?
Multi wall nanotubes are nanotubes made of
multiple tubes fit inside each other. Single wall
nanotubes are nanotubes made of just one tube, not many.Electron emissions are when a substance
emits electrons. A particular type of
electron emission is particularly interesting and relates
to heat and temperature. It is called THERMIONIC EMISSIONS.
It is a process in which electrons
are emitted from the surface of a metal
when heat energy is applied to said metal.
This occurs in extremely high temperatures.
I think that this happens becuase the heat energy
makes the electrons move around, similiar to
boiling water vapor, so they escape out of the subs
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