What fuels would be used in Nuclear fusion reactors?

Question

What fuels would be used in Nuclear fusion reactors?

Answer 1

Liquid hydrogen will be fine................

Answer 2

Since we haven't yet managed to set up a fusion reaction stable enough to power a reactor, it's hard to say.  The most likely candidate is tritium, a radioactive isotope of hydrogen.  It's relatively easy to fuse into helium, and it releases lots of energy in the process.  If we advance far enough, we might even be able to use plain hydrogen in its common, non-radioactive protium isotope.  Don't hold your breath for either of these breakthroughs, though.

Answer 3

In the fusion reactors ;there can be two reactions possible,

helium + deuterium

OR

helium+tritium

as deutarium is available in huge quantities from sea water it is mostly used to fuse with helium.

Answer 4

Probably D2, deuterium, the isotope of Hydrogen that, when combined with water, makes "heavy water".  There is a lot of D2 available in common sea water.