I've never seen this mentioned before. Do you have a link to an article about it?
Here you go
http://www.angewandtebiologischeneuemedizin.com/en/index.php?title=Focardi-Rossi_Energy-Catalyzer
http://it.wikipedia.org/wiki/Petroldragon
http://www.motherboard.tv/2011/1/25/is-cold-fusion-real-not-yet
http://blog.newenergytimes.com/2011/01/15/rossi-discovery-what-to-say/