ZSM-5纳米薄片定向堆积合成分子筛团聚体  

Synthesis of ZSM-5 aggregates assembled by oriented stacking nanosheets

作　　者：李孝国 米晓彤 曹辉 常洋 张永坤 李永恒 LI Xiaoguo;MI Xiaotong;CAO Hui;CHANG Yang;ZHANG Yongkun;LI Yongheng(CNOOC Research Institute of Refining and Petrochemicals,Beijing 102200,China)

机构地区：[1]中海油炼油化工科学研究院,北京102200

出　　处：《无机盐工业》2022年第1期112-116,共5页Inorganic Chemicals Industry

摘　　要：开发了一种新型的纳米微晶silicate-1(S-2)的合成方法。与常规的silicate-1(S-1)相比,S-2具有较小的粒径和光滑的晶体表面。当S-2作为晶种合成纳米ZSM-5聚集体时,ZSM-5团聚体为尺寸为0.8~1.0μm的单分散颗粒,构成团聚体的ZSM-5晶体为b轴厚度为60~80 nm的纳米薄片。ZSM-5纳米薄片沿着同一方向规则地堆叠形成独特的孔结构,该孔结构包括1.3 nm的均一孔道和25 nm的宽尺寸孔道。A new synthetic method of nanocrystalline silicate-1(S-2)was developed.Compared with the conventional silicate-1(S-1),S-2 had smaller particle size and smooth crystal surface.When S-2 was used as seed crystal to synthesize nano-ZSM-5 aggregates,the ZSM-5 aggregates were monodisperse particles with size of 0.8~1.0μm,which were composed by the ZSM-5 crystals with the b-axis thickness of 60~80 nm.The ZSM-5 nanosheets were regularly stacked along the b-axis forming a unique pore structure,including a uniform pore size distribution with an average size of 1.3 nm and a wide pore size distribution of 25 nm.

关 键 词：ZSM-5团聚体 晶种 多级孔 纳米薄片 

分 类 号：TQ424.25[化学工程]