IR study of H2O adsorbed on H-ZSM-5

被引：51

作者：

Kondo, JN

Iizuka, M

Domen, K

Wakabayashi, F

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA,KANAGAWA 226,JAPAN

[2] NATL SCI MUSEUM,DEPT SCI & ENGN,SHINJUKU KU,TOKYO 169,JAPAN

来源：

LANGMUIR | 1997年 / 13卷 / 04期

关键词：

D O I：

10.1021/la9607565

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Adsorption of H2O on H-ZSM-5 was studied by FT-IR in the presence of gaseous H2O in the temperature range between 293 and 423 K. Conversion of monomeric hydrogen-bonded H2O to dimeric species was clearly observed in IR spectra measured at 373 K by increasing the equilibrium pressure of H2O. Polymeric water was also formed by further increase of H2O pressure at the expenses of dimeric species. The frequencies and the relative intensities of IR bands due to dimeric species agree with the quantum-chemical results for H5O2+ species.

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页码：747 / 750

页数：4

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