INDUCED INFRARED-ABSORPTION OF HD PHYSISORBED ON NACL FILMS - A 2ND ADSORPTION SITE

被引：11

作者：

DAI, DJ ^{[1
]}

EWING, GE ^{[1
]}

机构：

[1] INDIANA UNIV,DEPT CHEM,BLOOMINGTON,IN 47405

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 100卷 / 11期

关键词：

D O I：

10.1063/1.466741

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：

In addition to our previously reported study of physisorption of hydrogen to Na+ sites on the (100) faces of NaCl crystallites [Dai and Ewing, J. Chem. Phys. 98,: 5050 (1993)], there is a second site (the Cl- ion) available for adsorption. Here, we report the induced infrared absorption of HD adsorbed on this second site. The infrared transition of these adsorbed HD molecules is blue shifted by 10 cm(-1) from the absorption of the first adsorption site molecules. Isotherms of HD on the second site yield an isosteric heat of adsorption of -1.7+/-0.5 kJ/mol, or approximately half that for the first site.

引用

页码：8432 / 8436

页数：5

共 23 条

[1]

[Anonymous], 1985, HDB OPTICAL CONSTANT

[2]

ATKINS PW, 1990, PHYSICAL CHEM

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