Cold fusion has a lot of confusion like this posting because so many experiment and it’s mechanism has not been discussed.
Confusion is caused by the incorrect nucleus model.
The mechanism of cold fusion is the compression of covalent bond of D2 at metal…
Nano metal particle is promising if it is a composite that ceramic nano metal with holes, in which metal is embedded to prevent transformation to bulk from nano metal.
The issue is the trigger of…
Cold fusion is now on the stage to improve heat generation per volume of the reactor and it must be easy to use for hours application, thus, hazardous gas’s of D2 is not fit to house use.
Cold fusion is not on the replication stage.
Because plasma fusion…
Again NASA Lattice confinement fusion is Not hot fusion but COLD fusion based on compression of covalent bond between covalent bond of Li
https://ijisrt.com/cold-fusion-mechanism-of-bond-compression of Er-D.