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学科主题: 物理化学
题名: Hyperpolarized 129Xe NMR for Investigation of Porous Materials and Reaction Kinetics
作者: Zhang WP(张维萍) ;  Xu ST(徐舒涛) ;  Liu Y(刘勇) ;  Han XW(韩秀文) ;  Bao XH(包信和)
会议名称: 16th International Zeolite Conference & 7th International Mesostructured Materials Symposium
会议日期: 2010-7-4
出版日期: 2010-07-04
会议地点: 意大利
通讯作者: 张维萍
部门归属: 五室
主办者: 国际分子筛学会
摘要: It is well known that the porous structures of zeolites are very crucial for their shape selectivity in catalytic reactions. In this study, one- and two-dimensional hyperpolarized 129Xe NMR spectroscopy has been used to investigate the porosity of catalytic materials, such as the identification of mesopores in TS-1/TiHMS micro/mesoporous composites and mesoporous ZSM-5 zeolites, the connectivity of pores in co-crystallized MCM-49/ZSM-35 zeolites, etc. The distribution of catalyst in the support can also be detected. Examples are illustrated by metallic Ga in MCM-41 and MoO3 in HBeta zeolite and alumina composite support. Additionally, the adsorption and reaction kinetics of methanol in CHA zeolites can be traced by variable-temperature measurements. This approach is also extended to study the diffusion kinetics of methanol in single-walled carbon nanotubes (SWCNTs).
语种: 中文
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/114142
Appears in Collections:中国科学院大连化学物理研究所_会议论文

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Recommended Citation:
Zhang WP,Xu ST,Liu Y,et al. Hyperpolarized 129Xe NMR for Investigation of Porous Materials and Reaction Kinetics[C]. 见:16th International Zeolite Conference & 7th International Mesostructured Materials Symposium. 意大利. 2010-7-4.
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