發(fā)布時間：2018-03-21 06:17

  本文選題：銻摻雜的氧化錫(ATO)　切入點：介孔微球　出處：《上海師范大學》2015年碩士論文　論文類型：學位論文

【摘要】：本論文采用了一種簡單易操作的溶劑熱法合成了介孔氧化錫及氧化錫銻(ATO)微球。在制備過程中,先系統(tǒng)研究了反應物濃度、反應溶劑及表面活性劑對氧化錫形貌的影響;在優(yōu)化的反應條件下,研究了不同銻摻雜濃度對所得樣品形貌、粒徑、導電性、氣敏性能以及光學性能的影響,并對相關的機理進行了探索。全文主要內(nèi)容和結論如下:1.本章運用了一種極其簡單的溶劑熱法一步成功的制備出形貌規(guī)則、粒徑均勻,且單分散的氧化錫介孔微球。通過場發(fā)射掃描電鏡FESEM、透射電鏡TEM、X射線衍射儀XRD、比表面吸附脫附BET、四探針和X光電子能譜XPS等表征手段,研究銻的摻雜濃度對氧化錫介孔微球形貌、粒徑、結構及導電性的影響。研究結果表明,所制備的氧化錫銻介孔微球無雜相,單個納米粒子粒徑逐漸減小、比表面積逐漸增大、導電性增強,對甲醛的檢測靈敏度也逐漸上升,在銻摻雜濃度達到10%(mol)時,制備出的粒徑約為500nm的氧化錫銻介孔微球?qū)兹┑淖畹蜋z測限度可達1ppm。2.以所研制的氧化錫銻介孔微球為隔熱填料,球磨分散后制得透明隔熱涂料,采用刮涂的方法制備透明隔熱薄膜。研究了銻的摻雜濃度對相應薄膜樣品的吸收、透過、反射、吸收邊及熱屏蔽能力等光學性能的影響。研究發(fā)現(xiàn)隨著涂層厚度的增加,薄膜樣品的透明度和近紅外透過率逐漸降。增加涂層厚度在一定程度上有效提高熱屏蔽能力,但會犧牲薄膜透明度。進一步研究了不同固含量ATO-10薄膜樣品的熱屏蔽性能,相比市售氟摻雜的氧化錫FTO和錫摻雜的氧化銦ITO玻璃,所制備樣品展現(xiàn)出了顯著的熱屏蔽能力。通過隔熱模擬實驗,所研制的ATO-10(25%)薄膜樣品在保證良好的采光前提下,具有低于FTO和ITO玻璃1.5-4.5℃的熱阻隔效果,在建筑及汽車節(jié)能玻璃上有廣闊的應用市場。
[Abstract]:In this paper, mesoporous tin oxide and tin antimony oxide (ATO) microspheres were synthesized by a simple solvothermal method. The effects of reactant concentration, reaction solvent and surfactant on the morphology of tin oxide were studied. Under the optimized reaction conditions, the effects of different antimony doping concentrations on the morphology, particle size, electrical conductivity, gas sensitivity and optical properties of the samples were studied. The main contents and conclusions of this paper are as follows: 1. In this chapter, a very simple solvothermal method is used to successfully prepare the morphology rules, and the particle size is uniform. And monodisperse tin oxide mesoporous microspheres were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) Tem X ray diffractometer, specific surface adsorption and desorption (BET), four-probe and X-ray photoelectron spectroscopy (XPS). The effects of antimony doping concentration on the morphology, particle size, structure and electrical conductivity of tin oxide mesoporous microspheres were studied. When the concentration of antimony reached 10mol, the sensitivity of formaldehyde was increased gradually. The minimum detection limit for formaldehyde of tin oxide antimony oxide mesoporous microspheres with diameter about 500 nm can reach 1 ppm.2.The transparent thermal insulation coating was prepared by ball milling and dispersing with tin antimony oxide mesoporous microspheres as thermal insulation filler. The effects of the doping concentration of antimony on the absorption, transmission, reflection, absorption edge and thermal shielding ability of the films were studied. It was found that the thickness of the films increased with the increase of the coating thickness. The transparency and near infrared transmittance of the films decrease gradually. Increasing the thickness of the coatings can improve the thermal shielding ability to some extent, but the transparency of the films will be sacrificed. The thermal shielding properties of ATO-10 films with different solid content are further studied. Compared with fluorine-doped tin oxide FTO glass and tin doped indium oxide ITO glass, the prepared samples show remarkable thermal shielding ability. It has a thermal barrier effect of 1.5-4.5 鈩，

本文編號：1642616