查询词典 tetrahedrally
- 与 tetrahedrally 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The presence of the strong absorption band around 220nm in UV-Vis spectra and the appearance of the band around 960cm^(-1) in IR spectra demonstrate that the tetrahedrally coordinated Ti-atoms exist in the framework of Ti-containing zeolites.
UV-Vis光谱在220nm处的强吸收峰和骨架在960cm-1处的红外吸收峰均证明在沸石骨架中存在四配位Ti原子。
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The last feature reflects a highly ordered structure of pore arrays. Solid state ^2^7Al MAS NMR investigation showed further that even at high level of aluminum (x~A~l=0.303), the Al atoms could still be incorporated tetrahedrally in the MCM-41 structure.
文中还利用^2^7AlMASNMR研究了试样中Al的化学环境,结果表明,即使在高铝含量的情况下,样品中的铝原子仍以四配位结合在MCM-41的硅骨架上,未能检测出骨架外六配位铝的存在。
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The octahedral Ti and anatase in the catalyst had a weaker influence on the decomposition of H2O2 than the tetrahedrally coordinated Ti.
了解H2O2无效分解的原因,有利于设计出高活性钛硅分子筛。
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These compounds have particularly simple structures.1,3 The unit cell is primitive cubic, with metal ions at the cor- ners and the center, bridged by four cyanide anions to form an interpenetrating network of tetrahedrally connected tetra- hedra.
这些化合物有特别简单structures.1 3 晶胞是原始立方,与金属离子在心病净入学率和中心,桥由四氰化阴离子形成互穿网络连接四分四hedra 。
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Such derivatives are prepared by reacting a kaolin group mineral with a reagent, such as, an alkali metal halide or an ammonium halide which converts the majority of the octahedrally coordinated aluminum in the kaolin group mineral to tetrahedrally coordinated aluminum.
这种衍生物是通过将高岭族矿物与一种试剂,例如一种碱金属卤化物或一种卤化铵进行反应,从而将高岭族矿物中的大部分六配位铝转化为四配位铝而制备的。
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Structural model based on SAXS patterns and TEM images shows that the ordered mesostructure consists of 8 large and 16 small caged pores, of which 8 large cages are arranged tetrahedrally on a diamond-like lattice.
第三章采用水溶性resol型酚醛树脂预聚体与反相三嵌段共聚物PPO-PEO-PPO R1PO_(53EO_(136)PO_(53)体系,通过溶剂挥发诱导自组装过程,首次合成出金刚石面心立方(Fd3m)结构的有序介孔碳材料。
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The results of the dissertation were concluded as follows:(1) It is essential to deposit a basic additive on the Mo-based catalysts for the synthesis of CH_3SH. The potassium-doped Mo-based catalysts exhibit the highest activity than that of the catalysts doped with the otherⅠA andⅡA group basic promoters. H_2-TPR and LRS characterizations suggest that the addition of a base leads to the transformation of octahedrally coordinated Mo to tetrahedrally coordinated Mo, thus leads to the split of low temperature reduction peaks. The interaction between the basic components and Mo lead to the formation of B-Mo interface phase, which are closely correlated with the formation of CH_3SH.(2) It has been found that Fe, Co, Ni and Te have evident promoting effects for the K-Mo/SiO_2 catalysts.
主要结果归纳如下:(1)在Mo基催化剂中,必须添加碱才具有可观的合成甲硫醇活性,在IA和IIA族元素中,K是最佳的碱促进剂,当K/Mo摩尔比为2,前驱体为K_2CO_3,采用共浸法制备的K-Mo催化剂活性最高。H_2-TPR和LRS表征显示,碱的加入导致表面八面体钼氧物种向四面体转化,催化剂的低温还原峰发生分裂,碱助剂与钼之间存在强相互作用形成了B-Mo"界面相",该物种与合成甲硫醇密切相关。
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ITQ-26 (INSTITUTO DE TECNOLOGIA QUIMICA number 26) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework.
ITQ-26(INSTITUTO DE TECNOLOGA QUMICA number 26)是新的结晶微孔材料,其具有通过能够桥联四面体原子的原子连接的四面体原子骨架,该四面体原子骨架通过其骨架中四面体配位原子之间的相互连接来界定。
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ITQ-27 (INSTITUTO DE TECNOLOGíA QUíMICA number 27) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework.
ITQ-27(INSTITUTO DE TECNOLOGíA QUíMICA number27)是新型微孔晶体材料,其具有通过能够桥联四面体原子的原子连接的四面体原子骨架,该四面体原子骨架通过其骨架中的四面体配位原子之间的相互连接而确定。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力