I'll just assume it works like a catalytic converter in a car, and needs to be brought up to a certain temperature before the reaction can occur. The secret ing

I'll just assume it works like a catalytic converter in a car, and needs to be brought up to a certain temperature before the reaction can occur. The secret ingredients could be the same metals used in automotive converters, the actual fuel could be anything that would be combusted in that process. The energy density claims are based on the assumption that the spent fuel leaves the center cylinder, which is probably untrue. The weight change could simply be due to leakage. Of course that's all just speculation. At least I didn't suggest transmutation of elements like the article did.