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- Those obtained zeolites were characterized by XRD, SEM, MAS NMR and BET. 采用XRD、SEM、MAS NMR、BET等方法对所制备的分子筛进行了物化表征。
- The coordination states of Al species in calcined HZSM-5 were investigated using 29Si, 27Al MAS NMR and 2D MQMAS. 采用29Si、27Al MAS NMR,2D MQMAS对焙烧脱铝的HZSM-5分子筛中铝的配位状态进行了研究。
- Siliceous FER zeolite possesses perfect framework as revealed by FT - IR and high resolution Si MAS NMR spectra. 红外精细谱及~(29)Si MAS NMR高分辨谱证明FER硅沸石具有十分完美的骨架结构.
- The modified samples were characterized by X-ray diffraction, BET, DTA and MAS NMR analyses. 使用BET比表面、DTA、XRD衍射和MAS NMR对样品进行表征。
- Titanium species existing in titanium silicalite were investigated using chemical analysis, XRD, 29Si MAS NMR, UV-Vis, ESR, UV-Raman. 采用元素分析、XRD、29Si MAS NMR、UV-Vis、ESR、UV-Raman谱等为工具，对钛硅分子筛中钛的存在形式进行了系统研究。
- SAPO-41 was synthesized by using dipropylamine as template. The molecular sieve SAPO-41 was characterized by XRD, XRF, BET, TEM, MAS NMR. 用二正丙胺为模板剂合成了富Si的SAPO-41分子筛,并采用XRD、XRF、BET、TEM、MAS NMR等手段进行物化表征,研究其在临氢异构反应中的催化性能。
- The dynamic processes of Bronsted acid sites involved in the formation ofintermediates are observed directly by ]H MAS NMR. 直接观测到了B酸位(活性中心)在反应中的动态变化过程，B酸位参与了中间物种的生成。
- A colloidal MMT was obtained by treating with acid followed by adding dimethylsulfoxide (DMSO).It was characterized by 13C and 29Si CP/MAS NMR，29Si and 27Al MAS NMR, TEM and XRD. 采用13C CP/MAS NMR ，29Si 和27Al MAS NMR以及TEM对样品进行了表征，表明胶体中蒙脱土被剥离并以叠胶的形式分散。
- A new kind of zirconio-aluminophosphate molecular sieves(MeZrAPO-5) as solid acid catalysts in alkylation of benzene with linear olefins was characterized by XRD, FT-IR, MAS NMR, NH_3-TPD and TDA. 采用XRD、FT IR、MASNMR、NH3 TPD和DTA等方法对锆磷铝分子筛 (MeZrAPO 5 )固体酸催化剂进行了表征。
- As demonstrated in the 1H MAS NMR experiment, the number of B acid sites per unit cell was 1 12 on the Mo/HZSM-5 catalyst prepared using unmodified zeolite as support, but it was only 0 88 on the Mo catalyst supported on modified HZSM-5 zeolite. 未经改性的Mo/HZSM 5催化剂表面 ;平均每个晶胞中有 1 12个B酸位 ;而改性的Mo/HZSM 5催化剂表面 ;平均每个晶胞中仅有 0 88个B酸位 .
- The type and the chemical state of non-framework aluminum and the related influence on zeolite acidity were investigated by means of 27Al MAS NMR,N2 adsorption-desorption,XRD Rietveld refinement. 采用27Al MAS NMR、N2吸附-脱附、IR等表征技术及XRD Rietveld结构精修的方法,通过清除和交换引入非骨架铝,探讨了USY沸石中非骨架铝的形态。
- The influence of lanthanum ions on the framework silicon, aluminum and extra-framework aluminum of LaDAlY zeolites has been studied by using 29Si, 27A1 MAS NMR and static 27Al NMR with acetylacetone treatment. 用~(29)Si(~(27)Al)MAS NMR和辅加乙酰丙酮(acac)处理样品的静态~(27)Al NMR研究了镧离子对脱铝Y型沸石(DAIY)骨架硅、铝和非骨架铝(EFAL)的影响.
- The state changes of the methylamine molecules in synthesis process of boron-containing CF-2 transformed from porous glass granules were studied using 13C MAS NMR and TG techniques. 13C MAS NMR和TG证实模板剂甲胺分子在反应过程中经历了三种状态：在反应初期，甲胺分子与多孔玻璃粉表面羟基处于弱相互作用状态；
- THE SOLID STATE ~(13)C MAS NMR STUDIES OF SOME MO-Cu-S CLUSTERS 几种Mo-Cu-S簇合物的固体~(13)C MAS NMR谱
- A METHOD FOR MEASURING PROTON SPIN DIFFUSION RATE IN CP MAS NMR 在CP MAS NMR中测量质子自旋扩散速率的方法(英文)
- Keywords FER zeolite;tetrahydrofuran;template;13C HPDEC MAS NMR; FER沸石;四氢呋喃;模板剂;13C固体核磁共振;
- ~(11)B VAS NMR AND ~1H MAS NMR STUDY ON THE BORON-CONTAINING ZEOLITES 含硼分子筛的~(11)B VAS NMR和~1H MAS NMR研究
- The HR manager hired me to replace old man Parsons. HR经理聘我来代替原来的帕森斯。
- 27Al MAS NMR can characterize and determinate aluminum in the solid samples. 应用 27Al MAS NMR可直接对固态样品中铝的存在状态和含量进行表征和测量。
- HR Manager: Yes, we offer three months severance. 有，我们提供三个月的工资作为辞退补偿。
