Na0.9K0.1NbO3　nanostructures　have　been　prepared　by　a　molten　salt　synthesis　method　using　KCl-NaCl　as　medium.　Though　the　equal　amount　of　Na2CO3　and　K2CO3　has　been　introduced,　the　resulted　products　are　a　Na　rich　Na0.9K0.1NbO3,　not　Na0.5K0.5NbO3.　Due　to　the　higher　diffusion　rate　of　Na+　ions　compared　to　that　of　K+　ions,　the　Na+　ions　preferentially　occupy　the　A-site　in　the　perovskite　structure,　facilitating　the　formation　of　Na0.9K0.1NbO3.　Moreover,　Na0.9K0.1NbO3　ceramics　densified　from　nanostructures　show　the　saturated　ferroelectric　loop.　The　coercive　electric　field　E-c　and　remanent　polarization　P-r　are　45　kV/cm　and　17　mu　C/cm(2),　respectively.　(C)　2013　Elsevier　B.V.　All　rights　reserved.