查询词典 TIO

Since H〓S and SO〓 adsorbed on TiO〓 could react with each other and TiO〓 is the medium of their electron transfer, thus SO〓 could not be adsorbed quite strong on the active site of TiO〓, which makes it more resistant to sulfating and increase the stability of catalyst. Finally, the model and mechanism of the reduction of SO〓 by NH〓 to elemental sulfur is advanced as follows: on the sulfide catalyst, ammonia is decomposed to N〓 and H〓, and H〓 reacts with SO〓 to form the intermedium of H〓S; then H〓S and SO〓 react as Claus reaction on TiO〓 catalyst.

反应系统中过量水蒸气的存在使催化剂表面某些活性位被水蒸气抑制使活性和选择性有较大幅度降低，但这种影响是可逆的，不会造成催化剂永久性中毒；另外当单质硫和水蒸气同时存在时，在〓催化剂上能够生成硫化氢和二氧化硫，而且由于硫化氢和二氧化硫化学吸附能力不同而导致它们的脱附顺序不同，硫化氢的生成温度总是低于二氧化硫的生成温度，说明过量水蒸气的存在会导致氧化物催化剂上逆克劳斯反应的发生；而在硫化物催化剂上几乎没有硫化氢和二氧化硫生成，说明硫化物催化剂能够抑制逆克劳斯反应的发生。

On this basis, chosing 15w germicidal lamp with radiation centred at 253. 7nm or 15w blacklight fluorescent lamp with radiation centred at 365nm as the light source respectively, the destruction effects of trace impurities in water by photocatalytic oxidation method using TiO〓 as an immobile phase have been investigated, and the effects are contrasted with photolysis. The investigation is mounted into Phenol aqueous solution, Hydroquinone and Humic Acid aqueous solutions、three representative halohydrocarbons coexisting in main water、the comprehensive index removal of varied trace organic pollutants in main water、the removal of residual chlorine and the disinfecting action, etc..

在此基础上，选择主波长253.7nm的紫外线杀茵灯或主波长365nm的蓝黑管紫外线荧光灯作为光源，研究了TiO〓膜固定相光催化氧化法去除水中微污染物的效果，包括苯酚水溶液、对苯二酚水溶液和腐植酸水溶液的光催化氧化以及自来水中共存的三种典型的氯代烃水溶液三氯甲烷、四氯化碳和四氯乙烯的混合光催化氧化、自来水中有机物总体去除效果以及光催化去除自来水中余氯的作用和光催化的消毒作用等，并进行了光解对比实验。

The reactions of transitional metal monoxides (TiO, ZrO, NbO, TaO, MnO, and FeO) and dioxides (VO_2, NbO_2, and TaO_2) with methane were investigated by matrix isolation infrared spectroscopic and quantum chemical calculations.

在本论文中我们利用低温基质隔离红外光谱方法研究了一些过渡金属一氧化物(TiO，ZrO，NbO，TaO，MnO和FeO)以及二氧化物(VO_2，NbO_2和TaO_2)与甲烷的反应。

The effect of calcining temperature and content of dopants on crystal structure, crystal size and property of modified TiO〓 nanoparticles is investigated.

重点考察了焙烧温度及金属离子的掺杂浓度对改性TiO〓纳米粒子晶型结构、晶粒尺寸及性能的影响。

It was found that earlytransition metal monoxides ScO, TiO and VO do not form noble gas complexes, whilethe late transition metal monoxides coordinate one noble gas atom in forming thelinear NgMO(M=Cr, Mn, Fe, Co, Ni) complexes.

对于前过渡的ScO，TiO和VO分子，它们的9σ，1δ和4π价分子轨道能量很高，不能有效地与稀有气体原子形成络合物，而对于后过渡金属一氧化物则可以配位一个稀有气体原子形成直线型的NgMO(M=Cr，Mn，Fe，Co，Ni)络合物。

Our results indicated that the photocatalytic ability of ZnO tetrapods was stronger than that of TiO〓(P-25) powders.

另外通过对比实验发现，四角状ZnO纳米结构的光催能力明显强于TiO〓纳米颗粒。

The oxide layer is predominantly TiO2, which contains a small amount of suboxides TiO and Ti2O3 between the outmost layer and metallic substrate. The XPS analysis confirms that Al2O3 is located mainly in the outer surface of the modified layers, in which vanadium and vanadium oxide are not detected.

结果表明：随着注入离子能量的增加， Ti6Al4V合金表面改性层的深度明显增加，改性层的外层由一定厚度的TiO2组成，外层与内层基体之间存在Ti2O3和TiO； Al元素在改性层的外层以氧化物形式存在，且该氧化物趋于表面生长；在表面改性层的外层未发现V及其氧化物。

SolGel derived TiO〓 films were used as dielectric layer and sputtered silver films were used as metal layer.

其中，通过溶胶凝胶方法制备电介质层TiO〓薄膜、通过磁控溅射来获得金属层。

K-M composite ceramic membrane tube supported TiO〓 membranes have been prepared by solgel technique and characterized by mercury intrusion, SEM and IR techniques.

采用溶胶—凝胶技术在K-M支承体上制备了负载型TiO〓膜，利用压汞、SEM、IR等实验手段对其进行了表征，考察了溶胶浓度、粘度、浸涂时间和次数等条件对成膜过程和成膜性质的影响。

The flame-retardant/smoke-suppressant of PVC may be divided into three kinds. The first is FRs , includes the compounds lying in IVB～VIB, such as TiO〓, V〓O〓, Cr〓O〓 and MoO〓; The second is FRs , includes the compounds lying in VⅡB～IB, such as MnO〓, Fe〓O〓, Co〓O〓, CuO and ZnO. The third is FRs , includes the compounds of subgroup A, for example Mg 〓, Al 〓, Sb〓O〓, carbonate and phosphate.

PVC的阻燃抑烟剂可分为三大类，第一类阻燃抑烟剂为元素周期表中IVB～VIB族的化合物，以TiO〓，V〓O〓，Cr〓O〓和MoO〓为代表，第二类阻燃抑烟剂为元素周期表中VⅡB～ⅡB族的化合物，以MnO〓，Fe〓O〓，Co〓O〓，CuO和ZnO为代表，第三类阻燃抑烟剂为三氧化二锑，氢氧化镁，氢氧化铝等主族元素的化合物。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。