ON STATE OF AMMONIA IN ADSORBED PHASE

被引：9

作者：

KVLIVIDZE, VI

BRANTS, RA

KISSELEV, VF

BLIZNAKO.GM

机构：

[1] State University of Moscow, Faculty of Physics, Moscow

[2] Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia

来源：

JOURNAL OF CATALYSIS | 1969年 / 13卷 / 03期

关键词：

D O I：

10.1016/0021-9517(69)90399-6

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：

The NMR spectra of ammonia adsorbed on silica gel treated at 200 ° and 700 °C and on zeolite (NaX) heated at 77-300 °K have been studied. The dependence of the line width and the second moment on coverage has been measured. It has been shown that the surface of silica gel is inhomogeneous and ammonia adsorption proceeds on different types of centers. The phase transition with melting has been observed on NH3 adsorbed on zeolite at T ≈ 145 °K (i.e., below the melting point of ammonia). The causes for the decrease in the melting point are considered. © 1969.

引用

页码：255 / +

页数：1

共 20 条

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