CAJ | 학술논문

采用双季铵盐模板剂溴代1,4-二氮甲基哌啶基-丁烷，通过动态水热晶化法成功制备了纳米级ZSM-12分子筛。采用 X 射线衍射、扫描电镜、透射电镜、红外光谱分析及 N2吸附-脱附技术等测试方法对所得颗粒进行了研究。所合成的颗粒呈长条形状，长约150 nm，宽约30 nm。所得的 ZSM-12沸石结晶体结构完整，无明显骨架缺陷，富含微孔和介孔孔隙。介孔孔隙来源于 ZSM-12纳米晶粒之间的堆积孔隙。在酸分布上，所得的 HZSM-12分子筛的中强酸及 B 酸比例较多，使得该沸石在催化反应中具备优良的反应活性。
채용쌍계안염모판제추대1,4-이담갑기고정기-정완，통과동태수열정화법성공제비료납미급ZSM-12분자사。채용 X 사선연사、소묘전경、투사전경、홍외광보분석급 N2흡부-탈부기술등측시방법대소득과립진행료연구。소합성적과립정장조형상，장약150 nm，관약30 nm。소득적 ZSM-12비석결정체결구완정，무명현골가결함，부함미공화개공공극。개공공극래원우 ZSM-12납미정립지간적퇴적공극。재산분포상，소득적 HZSM-12분자사적중강산급 B 산비례교다，사득해비석재최화반응중구비우량적반응활성。
Using diquaternary alkylammonium ions 1,4-bis(N-methylpiperidinium) butane bromide as structure-directing agent,ZSM-12 zeolites with nanosized particle diameter were successfully synthesized by dynamic hydrothermal method. The zeolite particles were characterized by XRD,SEM,TEM,NMR,IR and N2-adsorption. The results show that synthesized particles are strip-like, primary particle size is about 150 nm long and 30 nm wide;NMR showed that prepared ZSM-12 zeolites have not obvious skeletal defects. The samples are rich in micropores and mesopores, the mesopores are the result of accumulation between ZSM-12 nanocrystals. The results of acid distribution indicate that HZSM-12 has high concentration of mid-strong acid and br?nsted acid, and this property would make it more activity in some catalytic reactions.