查询词典 sieves

The synthesis of pure siliceous and aluminosilicate and various hetero-atoms substituted MCM-48 cubic mesoporous molecular sieves has been studied systematically.

系统考察了全硅和硅铝及各种杂原子取代的MCM-48立方相中孔分子筛的合成。

The MCM-41 and SBA-15 mesoporous molecular sieves with ordered structure and high surface area were synthesized by template method. Dynamic adsorption of toluene, o-xylene, mesitylene on the mesoporous molecular sieves were studied.

采用模板剂法制备了孔道规整、大比表面积的2种介孔分子筛MCM-41和SBA-15，并以甲苯、二甲苯、三甲苯为吸附对象，考察了介孔分子筛动态吸附VOCs的性能。

It is feasible to overgrow mesoporous MCM-41 on the rough surfaces of the grains. The obtained samples possess the ordered hexagonal mesoporous structure of MCM-41-type molecular sieves. Mesoporous molecular sieves (denoted as MZ-B) with ordered hexagonal structure have been successfully synthesized by the assembly of the precursors from filtrate of alkali-treated ZSM-5 zeolite with CTMABr surfactant micelles in alkaline media based on S+I– static electricity route.

而碱处理ZSM-5沸石得到的滤饼为富含超细化颗粒的晶粒，且晶粒粗糙度很高，因此易于附晶生长介孔分子筛，得到的微孔颗粒表面附晶生长的介孔分子筛，具有很好的长程有序度，为六方排列的孔道结构。

Zeolite Y sieves are used for preparation of ECL sensor for the first time by immobilizing tris (2, 2'-bipyridyl) ruthenium Ru (bpy 〓 in their supercages, which is achieved through the ion exchange properties of the sieves.

Ru〓固定于分子筛修饰碳糊电极的电化学发光与可更新无试剂海洛因传感器研究制备了一种能简单、快速、灵敏地测定海洛因的电化学发光传感器。

As our studies showed, silylation of mesoporous molecular sieves with alkoxysilane was an usual method of linking desired organical groups. However, as a result, the a lot of silanol groups still existed on the surface of mosoporous molecular sieves after silylation, which maybe affect the interface property and its catalystic activity. Based on this consideration, a novel method was proposed that a mixture of trichlorosilanes was used to silylate mesoporous molecular sieves, introducing both the further reactive group and hyhrophobic methyl group in one pot.

正如研究表明，通过硅氧烷与介孔分子筛表面的硅羟基反应是常见的键连有机基团的方法，但表面仍会剩余较多的硅羟基，硅羟基的存在会严重影响到介孔分子筛表面性质及催化活性，为此笔者提出采用混合的三氯化硅烷一步硅烷化介孔分子筛，在孔道内同时引入可进一步功能化的氯丙基或氯苄基和疏水性的甲基。

In this present work, we have synthesized three types of solid superacid with different structure of molecular sieves by sulfating zirconium silicalite molecular sieves, namely SO〓/Zr-ZSM-5, SO〓/Zr-ZMS-11 and SO〓/Zr-HMS.

本研究中，我们通过硫酸促进锆硅分子筛的方法，合成出了三种具有不同分子筛结构的固体超强酸催化剂，即SO〓／Zr—ZSM—5，SO〓／Zr—ZMS—11和SO〓／Zr—HMS。

Titanium silicalite molecular sieves are a type of heteroelements-containing molecular sieves which are comprised of Ti-0 tetrahedrons and S:-0 tetrahedrons.

钛硅分子筛是由钛氧四面体和硅氧四面体构成的一类杂原子分子筛，它是将钛引入全硅分子筛骨架的一种新型催化材料。

Experimental results show that, using the UV-LIGA process, hexagon micromesh nickel sieves (200 μm in side length, 50 mm in diameter and 120 μm in thickness) with an open-area percent of 88% and a sheet-thickness of 120 μm, which can hardly be achieved by the conventional machining methods, are successfully machined. The machined sieves are characterized by their smooth surfaces and aperture walls, high precision sizes as well as rigid and homogeneous structures.

结果显示，采用优化的工艺条件（前烘65℃/20min，95℃/20min；适量曝光剂量；后烘65℃/10min，95℃/15min；匀胶后静置、随炉冷却；超声辅助显影等）所制备的六边形镍网（边200μm），不仅开孔率高(88%)，厚度大(120±3μm，且具有尺寸精度高（形位误差±2μm）、孔形一致性好（筋宽偏差＜3μm）、孔壁平滑等特点。

It sieves the box is board crossbeam riveting hitch welds built-up section By host vice- side bar Hollow beam Enters the material back plate Leaves material board Sieves board and so on composition The side bar selects the low-alloy pressure vessel steel plate The intensity is high The weldability is good Peripheral knee bend And in the vibration direction and along longitudinal connects themulti- roots angle steel Causes the side bar rigidity big enhancement Is advantageous to the intensity enhancement and noise reducing.

其筛箱为板梁铆焊组合结构，由主副侧板、管梁、入料挡板、出料板、筛板等组成，侧板选用低合金压力容器钢板，强度高、可焊性好，周边折弯，并在振动方向及沿纵向联接多根角钢，使侧板刚度大大增强，有利于强度的提高和噪音的降低。

The latest advances in application of microwave technology in synthesising molecular sieves materials,removing template,loading active components and the application prospects of microwave to the studies of molecular sieves materials are reviewed.

综述了微波技术在分子筛材料的合成、模板剂脱除和分子筛材料负载活性组分中的应用，并对微波技术在分子筛材料研究领域的应用前景进行了展望。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。