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学科主题: 物理化学
题名: LAYERED STRUCTURE REVEALS THE CHEMISTRY BENEATH THE ZEOLITE FILMS
作者: Cai R(蔡睿) ;  Chu WL(楚文玲) ;  Yang WS(杨维慎) ;  Yan YS(严玉山)
会议文集: 14th Asian Chemical Congress 2011
会议名称: 14th Asian Chemical Congress 2011
会议日期: 2011-9-4
出版日期: 2011
会议地点: 曼谷
通讯作者: 蔡睿
出版者: 待补充
出版地: 待补充
合作性质: 分会特邀报告
部门归属: 504
主办者: 泰国化学会
摘要: Zeolites are a class of crystalline oxides that have uniform and molecular-sized pores (0.3-1.2 nm in diameter). They have been widely used in catalysis, ion exchange and separation due to the inherent molecular sieving capability of zeolites. Recently, other applications of zeolites in their film forms have emerged ranging beyond the traditional use as separation membranes: from computer chips as low-k insulators, aerospace alloys as corrosion resistant coatings, to space stations as antimicrobial and hydrophilic coatings. Those novel applications are mainly motivated by some unique properties of zeolites themselves. However, the properties of the films, as a whole system, have not been taken into enough consideration in terms of their applications. Here, we present the observation of a layered structure of zeolite coatings on Al alloys. This structure is formed during the in-situ hydrothermal synthesis and explains some unique coating properties that are in conflict with the properties of zeolites themselves. At the same time, the formation of the layered structure reveals the chemistry underneath the zeolite coating, which sheds light on the corrosion protection mechanism of zeolite coating on Al alloys.
英文摘要: Zeolites are a class of crystalline oxides that have uniform and molecular-sized pores (0.3-1.2 nm in diameter). They have been widely used in catalysis, ion exchange and separation due to the inherent molecular sieving capability of zeolites. Recently, other applications of zeolites in their film forms have emerged ranging beyond the traditional use as separation membranes: from computer chips as low-k insulators, aerospace alloys as corrosion resistant coatings, to space stations as antimicrobial and hydrophilic coatings. Those novel applications are mainly motivated by some unique properties of zeolites themselves. However, the properties of the films, as a whole system, have not been taken into enough consideration in terms of their applications. Here, we present the observation of a layered structure of zeolite coatings on Al alloys. This structure is formed during the in-situ hydrothermal synthesis and explains some unique coating properties that are in conflict with the properties of zeolites themselves. At the same time, the formation of the layered structure reveals the chemistry underneath the zeolite coating, which sheds light on the corrosion protection mechanism of zeolite coating on Al alloys.
内容类型: 会议论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115979
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:
Cai R,Chu WL,Yang WS,et al. LAYERED STRUCTURE REVEALS THE CHEMISTRY BENEATH THE ZEOLITE FILMS[C]. 见:14th Asian Chemical Congress 2011. 曼谷. 2011-9-4.
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