Synthesis of heteroatom zeolite Ni-ZSM-5 and the influential factors;
杂原子分子筛Ni-ZSM-5的合成及其影响因素
The intensity of XRD decreases, the granularity of sample enlarges and the amount of amorphous phase increases with the increasing concentration of the heteroatom.
采用水热晶化法合成了含Fe、V和Ti三杂原子的ZSM 5分子筛,利用X射线衍射(XRD)、扫描电镜(SEM)、紫外漫反射(DRS)、红外(IR)、电子顺磁共振(ESR)等手段对其进行了表征。
The conditions for the synthesis of heteroatom M ZSM 48(M=B,Ge,Cr or V)molecular sieves from hydrothermal systems and the physicochemical properties of M ZSM 48, such as specific surface area,adsorption capacity,thermal properties and surface acidity,are investigated.
研究了杂原子Ｍ－ＺＳＭ－４８（Ｍ＝Ｂ，Ｇｅ，Ｃｒ或Ｖ）型分子筛在水热体系中的合成条件，并用多种物理化学方法研究了分子筛的比表面、表面酸性、吸附性和热性能等物化性能。
Effect of Hetero-atom on the Stability of Y Zeolite Framework;
骨架杂原子对Y型分子筛结构稳定性的影响
Characterization of Framework Hetero-atom(B, Ti, Fe) in Y-type Zeolite;
杂原子(B、Ti、Fe)进入Y型分子筛骨架的表征
Effect of hetero-atom Ti on the properties of Y zeolite;
杂原子钛对TiY分子筛性能的影响
A novel series of random copolymers poly(aryl ether ether ketone ketone),containing silicon on the backbone,were prepared by low temperature solution polycondensation of 4,4′-diphenoxydiphene(DPOP),chiphenylmethylie and isophthalyl chloride(IPC) in 1,2-dichloroethane with the presence of AlCl_3 and DMF.
以二甲基二苄基硅烷(DMDPMS)作为第3种单体,与4,4′-二苯氧基苯(PPOP)和间苯二甲酰氯(IPC)共缩聚,以1,2-二氯乙烷(DCE)为溶剂、AlCl3为催化剂、N,N-二甲基甲酰胺(DMF)为助剂,合成了系列新线型高分子量的主链含硅杂原子结构的聚芳硅酮酮(PSiKK)/聚醚醚酮酮(PEEKK)无规共聚物,并用IR、DSC、WAXD、TGA等技术对共聚物进行了表征与分析,考察了共聚物的热性能、溶解性能和结晶性能。