I am trying to create an HRE (Hybrid Rocket Engine) and i am trying to find the best oxidizer. Do any of you have experience with using helium?
Helium is a noble gas, meaning it does not react with other atoms. In fact, it is the least reactive of them all. No compounds containing helium has ever been found, although some of the heavier noble gasses have formed unstable compounds. As helium can not be part of any molecule, it can not release chemical energy in any way thus failing to be an oxidizer. It is in fact the worst possible oxidizer. Take a look at liquid oxygen or fluorine instead.