Forgive my simplistic understanding, but based on this hypothesis, all one needs to do is Ionize a bunch of Atomic Hydrogen and set them on a collison course with each other; and each collision should produce an excess energy, correct??
If so, then all one needs is to make sure you have a lot of Ionized hydrogen at a high temperature, make sure the Ions and the electrons are separated and you should get excess energy from the collisions of the Ions without the need for nickel or any other metal. If this is correct, the best reactor configuration would be 2 plates subjected to high voltage with sparks from time to time. The sparks ionize and heat the atomic hydrogen, the electric field from the high voltage should separate the positive hydrogen protium ions from the negative electrons forcing the positive ions to bunch up on 1 side and that should promote collisions. I wonder if this has something to do with why Rossi adopted a flat 2-plate reactor design? Jojo