Zirconium　monohydride　bonded　to　the　framework　oxygen　of　MCM-41　surface　was　prepared　by　the　reaction　of　tetraneopentyl　zirconium　with　MCM-41　surface　hydroxyl　groups,　followed　by　the　hydrogenolysis　of　the　resulted　product.　The　surface　hydride　was　characterized　by　using　infrared　spectroscopy,　solid-state　NMR,　elemental　analysis,　gas-phase　chromatography　and　chemical　probing　reaction.　It　was　shown　that　this　surface　species　is　stable　below　150　degreesC　and　can　catalytically　crack　alkanes　into　methane　and　ethane　at　100　degreesC.