溶胶

While the molar ratio of WD-20 and tetraethyl orthosilicate was 0.2, the sol-fraction of the prepared nanocomposites was 6%,glass transition temperature was above 250 ℃ and the transmittance was more than 80% at the wavelength between 450 nm and 800 nm and the size of dispersed SiO2 phase was less than 100 nm.

当WD-20与四乙基原硅酸盐之比为0.2时，所制备的纳米复合材料的溶胶分数为6%、玻璃化转变温度为250 ℃以上、可见光透过率在80％以上、SiO2分散相尺寸小于100 nm。

Palmitic acid-silicon dioxide nano-composite phase change material was prepared by sol-gel process from tetraethyi orthosilicate and palmitic acid.

采用溶胶—凝胶法，以正硅酸乙酯和棕榈酸为主原料，制备了一种有机—无机纳米复合相变材料。

Nanu-SiO2 was syrtthesized though hydrolyzation-condensation of n- tetraethyl orthosilicate in organic solvent using sol-gel method.

西北工业大学理学院，西安710072摘要：采用溶胶一凝胶法，利用正硅酸乙酯在有机溶剂中的水解-缩合制备纳米SiO2。

Porous carbons were prepared with tetraethyl orthosilicate as the silica template and solube starch and β-cyclodextrin as carbon precursor by sol-gel method.

以正硅酸乙酯为模板硅源，β-环状糊精和可溶性淀粉分别为碳前驱体，运用溶胶-凝胶法制备了多孔炭材料。

The sol-gel solution was prepared by mixing ethyl orthosilicate, absolute alcohol and 0.1molL^(-1) HCl in a definite proportion, and adding an appropriate amount of silicotungstic acid as active material, strring for 30min and then standing for 24h at room temperature.

溶胶－凝胶溶液系将正硅酸乙酯、无水乙醇及0.1molL^(-1)盐酸按一定比例混合后加适量的硅钨酸作为活性物质，搅拌30min混匀后在室温放置24h配成。

The SiO2 gel was prepared through hydrolysis and condensation polymerization of tetraethyl orthosilicate and H2O. The gel and LaNi4.25Al0.75 powders were mixed completely and heated at 500 ℃ for 2 h to obtain samples.

摘 要：以正硅酸乙酯为原料，采用溶胶凝胶法制备多孔SiO2凝胶，将LaNi4.25Al0.75合金粉与凝胶混合在500℃进行真空烧结。

Monolayer high anti-reflective coatings are coated by sol-gel method with tetraethyl orthosilicate and silicon oil(MW≈500) as precursor and ammonia as catalyst.

以正硅酸乙酯和硅油为前驱体，在碱性催化体系中制备出有机硅改性二氧化硅溶胶，采用提拉法获得了具备疏水性能的二氧化硅减反膜。

Hydroxyethyl cellulose and tetraethyl orthosilicate are chosen as the stuffs for the reaction, and HEC/SiO2 organic/inorganic hybrid are prepared by Sol-Gel process.

以羟乙基纤维素、正硅酸乙酯为原料，采用溶胶－凝胶技术合成了HEC/SiO2有机－无机杂化材料。

Samples prepared by sol-gel method have the largest OSC and suitable specific surface area.

采用溶胶—凝胶法制备的储氧材料老化前有较大的储氧量和合适的比表面。

CdSe nanoclusters were overcoated with CdS shell in aqueous medium, which resulted in elimination of deep defects on surface of nanoparticles and thus large increase of the emission intensity of CdSe nanoclusters.(4) Based on PL emission and excitation results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results.

有机包覆剂虽然可以控制颗粒的长大，但无法同时消除由Ⅱ族和Ⅵ族两种元素的悬挂键在表面形成的无辐射复合缺陷中心，本文实现了在水溶胶中将宽带隙CdS半导体材料外延生长在CdSe纳米颗粒表面，有效的消除了无辐射复合缺陷中心，使得样品在室温就可以测到带边发光。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。