Preparation of ion-exchangeable thin films of layered niobate K4Nb6O17

被引：57

作者：

Abe, R

Hara, M

Kondo, JN

Domen, K

Shinohara, K

Tanaka, A

机构：

[1] Tokyo Inst Technol, Resources Utilizat Res Lab, Midori Ku, Yokohama, Kanagawa 226, Japan

[2] Nihon Corp, Sagamihara, Kanagawa 228, Japan

来源：

CHEMISTRY OF MATERIALS | 1998年 / 10卷 / 06期

关键词：

D O I：

10.1021/cm970825g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An ion-exchangeable thin film which has the layered structure of K4Nb6O17 was prepared from a suspension of fine particles of K4Nb6O17. The superfine particles which were obtained by wet grinding were coated onto a substrate, and they were calcined between 873 and 1073 K. Crystallization of the fine particles by calcination was observed by XRD, SEM, and AFM, and very flat crystals of similar to 500 nm with the b-axis perpendicular to the substrate surface were obtained by calcination at 1027 K. The obtained thin film had a layered structure similar to that of the original K4Nb6O17 powder. Furthermore, it had ion-exchange properties which enabled the exchange of interlayer cations from potassium to others without destroying the layered structure.

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页码：1647 / 1651

页数：5

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