Yes is seems based on similar ideas.
Patterson cell patent was based on catalythic palladium ou nickel mesh, but with a glow discharge it seems ?
it was not just heat that activate the reaction...
I don't know if it was well reproduced, it seems no.
The term “hydrogen” includes protium, deuterium, and tritium. So I wonder if deuterium is the secret catalyst in Rossi’s E-Cat.
Rossi can truthfully say that the E-Cat is charged with hydrogen gas even if that gas is 99% deuterium (i.e., heavy hydrogen).
My guess is no, but your idea is possible.
maybe however a tiny fraction of D can activate some reaction...
50% D and H in Srinivasan experiments at BARC were producing the maximum tritium... even if the quantity was tiny compared to the expected heat, it may cause somethings.
Celani observed neutrons in NiD, like some with TiD... neutrons are not good, are probably not LENR (just hot fusion) but they maybe help the good reaction...
too many speculation, we need the report !