Complexation-Coprecipitation Synthesis and Characterization of Erbium and Antimony Doped SnO2 Conductive Nanoparticles

摘要

Er was used as a dopant for the first time in preparing conductive powder to improve its performance. Er and Sb doped SnO2 conductive nanoparticles were prepared by the complexation-coprecipitation method with Sn, Sb2O3 and Er2O3 as the raw materials. Thermal behavior, crystal phase, and structure of the prepared conductive nanoparticles were characterized by TG/DSC, FTIR, XRD and TEM techniques, respectively. The resistivity of the prepared conductive nanoparticles was 0.29 Ω·cm; TG/DSC curves showed that the precursors lost weight completely before 750 ℃; FTIR spectrum showed that the vibration peak were wide peak in 711 ～ 600 cm-1; the Er and Sb doped SnO2 conductive nanoparticles had intense absorption in 4000 ～ 1600 cm-1; Er and Sb doped SnO2 had a structure of tetragonal rutile; complex doping was achieved well by complexation-coprecipitation method and was recognized as replacement doping or caulking doping; TME showed that the particles were weakly agglomerated, the size of the particles calcined at 800 ℃ ranged approximately from 10 to 30 nm.