You can put a receptacle there, but that won't suffice for the one required for the peninsula. Note the required outlet doesn't need to be on the end of the peninsula. It needs to be on top or not more than 12" below (and not where there's more than a 6" overhang).

Two options: nothing says that it has to be on the end of the peninsula. Two, if you have cabinets over your peninsula, and they are within 20" of the surface, you can mount it there.

Could you post a pic of the space not just the peninsula