excerpts from natscience.com:
- What fuels the E-Cat? Rossi states that he uses micrometer grain
sized nickel dust enriched to contain more of two useful isotopes,
N-62 and N-64.
- The nickel is then processed to increase the number of
surface tubercles (protrusions) to provide greater area for heat
producing reactions with hydrogen gas under pressure. A secret
catalyst is added to break apart the molecular hydrogen gas (H2) into
atomic hydrogen (H1).
- To make it simple, what happens is that nickel has a
particularity that protons spread from it's surface with extreme
efficiency very close to the nucleus, even if repelled by the so
called coulomb barrier forces. When we inject protons of hydrogen at
high pressures and temperatures, they go pretty close to the nucleus
of the nickel. At those points we have nuclear effects that produce
gamma rays which add more energy. We increase the pressure leading to
extremely high pressures... similar to ones that happen inside White
Dwarf stars. In that situation the so called Gamow Factor, which is a
probabilistic calculation of the coulomb repelling forces, is
overcome. At that point enough energy is produced to make it worth
being recorded." - Andrea Rossi
It can be recalled that the phenomenon LENR or "cold fusion", is a surface phenomenon. Rossi's quote above fits with idea of maximizing the surface area. Maximize the surface area, maximize the effect.
BECNF theory posits that there is a many body effect on the surfaces. Same with Widom Larsen's theory- relying upon the actions of quasiparticles on surfaces, which corresponds somewhat with BECNF theory.
There are many theories about "cold fusion". It has been said that there are too many. So, I pose the question, as I heard Edmund Storms posed in a similar vein, what if there is more than one way to skin the nuclear cat? Many body effects, too many causes? [ those last questions may be too cute, sorry]