Formation of [Cu((eta)^2-H2)]+ Species in MFI-type Zeolite and Resulting H–D Exchange Reaction with Hydrogen on Br?nsted Acid Sites at 300 K

We examined the adsorption feature of the CuMFI sample for H2 adsorption and found a specific interaction between Cu+ exchanged in MFI and H2 even at 300 K, the formation of (eta)^2-type H2-adsorbed species in MFI-type zeolite; it caused H–D exchange reaction with hydrogen on Br?nsted acid sites even at 300 K.