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作 者:高放[1] 程晓维[1] 汪靖[1] 郭娟[1] 周伟正[1] 龙英才[1]
机构地区:[1]复旦大学化学系上海市分子催化与新材料重点实验室,上海200433
出 处:《化学学报》2006年第14期1423-1428,共6页Acta Chimica Sinica
摘 要:以四氢呋喃(THF)为模板剂,在添加催化剂量OP乳化剂(C8H17C6H5O(CH2CH2O)10OH,分子量662)的THF-Na2O-SiO2-Al2O3-H2O反应物体系中研究纯相FER沸石的结晶,并通过粉末X射线衍射(XRD),扫描电子显微镜(SEM),13C交叉极化(CP)及27Al魔角旋转核磁共振谱(MASNMR),X射线荧光散射光谱(XRF),氮吸附等手段进行表征.体系中催化剂量OP乳化剂对THF-FER沸石结晶过程具有促进作用,可明显降低结晶温度,缩短晶化时间,有效抑制杂晶相MOR沸石的共生.Pure phase ferrierite (FER) zeolite was hyhrothermally synthesized with tetrahydrofuran (THF) as the template in the presence of catalytic amount of OP emulsion agent in the reactant system of THF-Na2O-SiO2-Al2O3-H2O. Powder X-ray diffraction (XRD), scanning electron microscope (SEM), ^13C cross polarization (CP) and ^27Al magic angle spinning nuclear magnetic resonance (MAS NMR), X-ray fluorescence scattering spectroscopy (XRF) and nitrogen sorption were used to characterize the synthesized product. The catalytic amount of OP added in the reactant system has played a promoting role in the zeolite crystallization, reducing the reaction temperature, shortening the synthesis time and restraining the coexistence of mordenite (MOR) phase.
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