The　crystallization　kinetics　of　nanoscale　cerium　dioxide　particles　prepared　by　Pechini　method　was　investigated　by　various　non-isothermal　methods　using　differential　scanning　calorimetry.　The　activation　energies　for　the　crystallization　calculated　from　modified　Kissinger　and　Ozawa　equations　are　19.7　and　22.4　kJ/mol,　respectively,　which　are　much　lower　than　that　of　solid-state　reaction.　The　Avrami　exponent　calculated　from　Ozawa　equation　is　about　1.5,　indicating　that　the　nucleation　process　is　controlled　by　long-range　diffusion　in　the　early　stage,　and　the　small　nuclei　grow　into　various　shapes.　The　nucleation　rate　decreases　as　the　reaction　proceeds.　In　addition,　the　kinetics　of　crystal　growth　was　also　studied.　©　2010　ASM　International.