Chemistry Forum

Why doesn't Si + Wo₃ ignite?

What can I do to find out why it doesn't ignite?

Why it should be. Acivation energy level is very high. But I think if you heat the mixture to some hundreds degree a reaction can take place. If silicon as a reducer is strong enough I dont know. Better use aluminium instead.

oh i see, Maybe it’s because of the activation energy.
and I raised it to about 800 degrees, but there is no ignition.
Thanks!

The energy level is very high so use aluminum. It's my favourite subject but unfortunately, I can't continue my educations because I am very poor so I did not pay mepco bill. Now I am thinking about education that I have to go to uni.

I read in a paper that Si-doping increases and stabilizes the acetone-selective ε-WO₃ phase while increasing its thermal stability and, thus, results in superior sensing performance with an optimum at about 10 mol % Si content.