Complexation-Coprecipitation Synthesis and Characterization of Neodymium and Antimony Doped SnO2 Conductive Nanoparticles
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第2期
论文作者：Liu Xiaozhen Wang Junqi Chen Jie Sang Wenbin
Key words：conductive nanoparticles; doping; chemical synthesis; spectra; rare earths;
Abstract: Nd and Sb doped SnO2 conductive nanoparticles were prepared by the complexation-coprecipitation method with Sn, Sb2O3 and Nd2O3 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 was 0.12 Ω·cm. TG/DSC/DTG curves show that the precursors lose weight completely before 750 ℃. FTIR spectrum shows that the vibration peaks are wide peaks in 731～617 cm-1, and the Nd and Sb doped SnO2 conductive nanoparticles have intense absorption in 4000～2000 cm-1. Nd and Sb doped SnO2 have a structure of tetragonal rutile, and complex doping is achieved well by complexation-coprecipitation method and is recognized as replacement doping or caulking doping. TME shows that the particles are weakly agglomerated, and the size of the particles calcined at 1000 ℃ ranges about 10 nm to 30 nm.
Liu Xiaozhen1，Wang Junqi1，Chen Jie3，Sang Wenbin2
(1.Department of Chemical Engineering, Shanghai Institute of Technology, Shanghai 200235, China;
2.School of Material Science and Engineering, Shanghai University, Shanghai 200436, China;
3.Department of Chemistry, Fudan University, Shanghai 200433, China)
Abstract:Nd and Sb doped SnO2 conductive nanoparticles were prepared by the complexation-coprecipitation method with Sn, Sb2O3 and Nd2O3 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 was 0.12 Ω·cm. TG/DSC/DTG curves show that the precursors lose weight completely before 750 ℃. FTIR spectrum shows that the vibration peaks are wide peaks in 731～617 cm-1, and the Nd and Sb doped SnO2 conductive nanoparticles have intense absorption in 4000～2000 cm-1. Nd and Sb doped SnO2 have a structure of tetragonal rutile, and complex doping is achieved well by complexation-coprecipitation method and is recognized as replacement doping or caulking doping. TME shows that the particles are weakly agglomerated, and the size of the particles calcined at 1000 ℃ ranges about 10 nm to 30 nm.
Key words:conductive nanoparticles; doping; chemical synthesis; spectra; rare earths;
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