Precise construction on the structure of zeolite microcapsules  

作　　者：Jing Shi Jia-Wei Teng Yang-Dong Wang Yi Tang Zai-Ku Xie 

机构地区：[1]Sinopec Shanghai Research Institute of Petrochemical Technology [2]Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University [3]Sinopec, China Petroleum & Chemical Corporation

出　　处：《Chinese Chemical Letters》2015年第11期1409-1414,共6页中国化学快报（英文版）

基　　金：supported by National Key Basic Research Program of China(Nos.2013CB934101 and 2009CB623500);Science and Technology Commission of Shanghai Municipality(No.11JC1400400);National Plan for Science and Technology(No.14-PET827-02);Shanghai Postdoctoral Scientific Program(No.13R21422000)

摘　　要：In this paper, the precise construction on the structure of silicalite-1 microcapsules （S1） was specifically described. The interior carbon modifications and the outside mesoporous functionalizations were successfully conducted and each sample was characterized in detail, It was found that the carbon networks could be formed inside the zeolite microcapsules via the pretreatment of sugar injections. The uniformity of the distinct microcapsule could be regulated by adjusting the sugar concentrations. With the encapsulated Pt species inside the MSSs, the nano-particles could be dispersed well within the carbon network. On the other hand, during the fabrication of the mesoporous materials outside the microcapsules, the template and the acidity of the system could play an important role in determining the morphology of S1. Besides, the PDDA modification on the shell of SI could help the combination of the meso-layer and the shell of S1 at nano-scale. The thickness of the outside mesopore could be modulated through the controlling of the silica content.In this paper, the precise construction on the structure of silicalite-1 microcapsules （S1） was specifically described. The interior carbon modifications and the outside mesoporous functionalizations were successfully conducted and each sample was characterized in detail, It was found that the carbon networks could be formed inside the zeolite microcapsules via the pretreatment of sugar injections. The uniformity of the distinct microcapsule could be regulated by adjusting the sugar concentrations. With the encapsulated Pt species inside the MSSs, the nano-particles could be dispersed well within the carbon network. On the other hand, during the fabrication of the mesoporous materials outside the microcapsules, the template and the acidity of the system could play an important role in determining the morphology of S1. Besides, the PDDA modification on the shell of SI could help the combination of the meso-layer and the shell of S1 at nano-scale. The thickness of the outside mesopore could be modulated through the controlling of the silica content.

关 键 词：ZeoliteMicrocapsuleMesoporous modification 

分 类 号：TQ424.25[化学工程]