At 11:03 PM 8/8/2003 +0000, you wrote:
Hey guys,

I was just working on an interesting idea, and I had
a quick question for John Carmack (or anyone else
that knows).  John mentioned that hydrogen will ignite
with air at room temperature when in contact with a
platinum catalyst.

Will it also combust with Nitrous Oxide?  Are there
other fuels that will ignite with air at room temp?

Any good books or articles that I could read about
this?

~Jon

It is an interesting question. I don't think a mixture of nitrous oxide and hydrogen gas would react on a catalyst, because usually nitrous requires elevated temperature to decompose into nitrogen and oxygen, which then reacts. Nitrous by itself isn't really an oxidizer. On the other hand, there has been work (not successful, AFAIK in rocketry) to catalyze the decomposition, of nitrous, rather than relying on thermal decomposition, but I don't know if platinum based catalysts do it. I have been tempted to try flowing nitrous over our preheated catalysts to see if it runs as a monoprop.


John Carmack

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