A new Mn-containing chabazite zeolite is prepared by incipient wetness impregnation for ethane dehydrogenation. Mn2O3 nano particles form on the external surface of chabazite zeolites and are responsible for the high reactivity and selectivity. Moreover, this strategy is also applicable when the catalyst is used to catalyze propane dehydrogenation or when Mn is supported on other zeolites (MFI or BEA).
