2007•Journal of Yanshan UniversityRequires access

Synthesis of La_(1-x)Li_xFeO_3 nano-crystal by sol-gel method

Song Ai-jun, Hongmei Liu, Wei Tian-hua

Abstract

Nanocrystalline photocatalyzer LaFeO_3 and La_(1-x)Li_xFeO_3 doped Li are synthesized by sol-gel method.The structures are investigated by DTA,XRD and TEM respectively.The results show that LaFeO_3 and Li-LaFeO_3 nano-crystals prepared by sol-gel method possess perovskite-type oxide composite structure.The treated temperature affects the morphologie and structure,the particle size of Li-LaFeO_3 treated at 700℃for 2 hours was larger than that of 600℃for 2 hours,but both were nano grade.

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Key concepts: Materials science, Sol-gel, Nanocrystalline material, Nano-, Chemical engineering, Particle size, Perovskite (structure), Crystal structure