CAJ | 학술논문

采用化学共沉淀法，制备Sb掺杂SnO2（ ATO）包覆微纳米TiO2导电粉体，研究了不同的制备工艺条件对 ATO／TiO2复合粉体电阻率的影响，得出最佳包覆方案：TiO2浆料浓度25％，m（SnCl4?5H2O）／m（TiO2）＝25％，m（SbCl3）／m（SnCl4?5H2O）＝12％，反应温度60℃，pH值1．5，包膜时间3 h，煅烧温度500℃，煅烧时间3 h；通过X射线衍射（XRD）、扫描电镜（SEM）等对表面包覆前后的微纳米ATO／TiO2的结构进行了分析表征．结果表明，ATO颗粒是以物理吸附的方式吸附在二氧化钛表面．
채용화학공침정법，제비Sb참잡SnO2（ ATO）포복미납미TiO2도전분체，연구료불동적제비공예조건대 ATO／TiO2복합분체전조솔적영향，득출최가포복방안：TiO2장료농도25％，m（SnCl4?5H2O）／m（TiO2）＝25％，m（SbCl3）／m（SnCl4?5H2O）＝12％，반응온도60℃，pH치1．5，포막시간3 h，단소온도500℃，단소시간3 h；통과X사선연사（XRD）、소묘전경（SEM）등대표면포복전후적미납미ATO／TiO2적결구진행료분석표정．결과표명，ATO과립시이물리흡부적방식흡부재이양화태표면．
Micro-nano titanium dioxide of conductive property was prepared by chemical co -precipitation method as TiO2 surface was coated by antimony doped tin dioxide .The effect of different preparation conditions on the electrical resistivity of production was investigated , and the results show that the best coating concentration of titanium dioxide slurry is 25% when reaction temperature is 60℃, m(SnCl4? 5H2O)/m(TiO2) =25%, m(SbCl3)/m(SnCl4? 5H2O) =12%,adjusting pH value for 1.5 and stirring 3 h.the product was obtained when the calcination temperature was 500℃for 3 h.The structures of ATO/TiO2 were characterized by X -ray diffraction(XRD) and scanning electron microscopy ( SEM) .The results show that ATO particles is acted by the method of physical ad-sorption on the surface of the titanium dioxide .