... 10 9, 11 2fHastelloy-X, 18 4HI decomposition, 87-90, 91- 93catalysts, 11 6 -18 chemical contaminants in, 10 9 -11 , 11 3fgaseous, 10 8iodine separation in, 10 5-8, 11 0t materials for HIx, 99 -10 5 materials ... 99 -10 5 materials for phosphoric acid, 10 5separation membranes hydrogen, 11 4 -16 sulfur oxide, 11 3 -15 water, 11 1 -13 stress corrosion in, 10 9 -11 water separation in, 11 1 -13 High Efciency Generation of Hydrogen ... in, 10 5-8, 11 0t materials for HIx, 99 -10 5phosporic acid materials, 10 5separation membranes, 11 1 -16 water separation in, 11 1 -14 sulfuric acid, 86, 87t, 93-99, 10 1tDense membranes for hydrogen...