Concise synthesis of NaTi2(PO4)3 nanocrystals with size and morphology control

Abstract NaTi 2 (PO 4 ) 3 (NTP) nanocrystals with high room-temperature ionic conductivity of 1.1 × 10 −3  S/cm were prepared by a concise solvothermal method at 140 °C for 3 h, and the aspect ratios of all the NTP nanocrystals are the closest to 0.7. It implies a moderate size-distribution of NTP nanocrystals obtained at 140 °C for 3 h is helpful for increasing packing density, and the packing density is the larger, so its conductivity is the higher. The controllability over size and morphology of the NTP nanocrystals via solvothermal temperature and time were investigated. The results suggest that our method is of great potential in synthesizing NTP nanocrystals with high room-temperature ionic conductivity at low cost.