up to 900 times English https://en.wikipedia.org/wiki/Palladium_hydride affinity to hydrogen 900 times extreme affinity hybride up to 900 times Wikipedia up to 900 times palladium hydride English palladium hydride Wikipedia extreme affinity palladium hydride palladium hydride palladium hydride Wikipedia Wikipedia palladium hydride http://en.wikipedia.org/wiki/Palladium_hydride Palladium hydride