摘要
La and Sb doped SnO_2 conductive nanoparticles were prepared by the coprecipitation method with SnCl_4·5H_2O, SbCl_3 and La_2O_3 as the raw materials. Thermal behavior, crystal phase, and structure of the prepared conductive nanoparticles were characterized by TG/DSC/DTG, FTIR, XRD and TEM techniques, respectively. The resistivity of the prepared conductive nanoparticles is 2.5 Ω·cm. TG/DSC/DTG curves show that the precursors lose weight completely before 750 ℃. FTIR spectrum show that the vibration peak are wide peak in 718～615 cm -1, and the La and Sb doped SnO_2 conductive nanoparticles have intense absorption in 4000～2000 cm -1. X-ray powder diffraction pattern of the conductive nanoparticles indicates that the Sb-doping in SnO_2 is replacement doping and La 3+ combines with Sn 4+ and O 2- form La_2Sn_2O_7. TME shows that the particles are weakly agglomerated, and the size of the particles calcined at 1000 ℃ ranged about 20～30 nm.
La and Sb doped SnO_2 conductive nanoparticles were prepared by the coprecipitation method with SnCl_4·5H_2O, SbCl_3 and La_2O_3 as the raw materials. Thermal behavior, crystal phase, and structure of the prepared conductive nanoparticles were characterized by TG/DSC/DTG, FTIR, XRD and TEM techniques, respectively. The resistivity of the prepared conductive nanoparticles is 2.5 Ω·cm. TG/DSC/DTG curves show that the precursors lose weight completely before 750 ℃. FTIR spectrum show that the vibration peak are wide peak in 718～615 cm -1, and the La and Sb doped SnO_2 conductive nanoparticles have intense absorption in 4000～2000 cm -1. X-ray powder diffraction pattern of the conductive nanoparticles indicates that the Sb-doping in SnO_2 is replacement doping and La 3+ combines with Sn 4+ and O 2- form La_2Sn_2O_7. TME shows that the particles are weakly agglomerated, and the size of the particles calcined at 1000 ℃ ranged about 20～30 nm.
基金
ProjectsupportedbyShanghaiKeySubject(200171)andScienceTechnologyFoundationofShanghaiUniversities(02HK02),ScienceTechnologyFoundationofShanghai(0452nm032)
