Yes, they freeze wonderfully. You can either make them up and freeze them before or after air frying. Either way, you will want to freeze them on a parchment-lined sheet pan for several hours. Once they are completely frozen, you can put them in an airtight container or freezer bag and store them in the freezer until you are ready to use them. They should last a few months in the freezer, but I would check them, because, if they develop any ice crystals, they will not cook up as well.  Make sure not to place anything heavy on top of them because they are fragile even when frozen.