PYROELECTRIC SINGLE-CRYSTAL ADSORPTION MICROCALORIMETRY AT LOW-TEMPERATURES - OXYGEN ON NI(100)

被引：29

作者：

DIXONWARREN, SJ ^{[1
]}

KOVAR, M ^{[1
]}

WARTNABY, CE ^{[1
]}

KING, DA ^{[1
]}

机构：

[1] UNIV CAMBRIDGE, DEPT CHEM, CAMBRIDGE CB2 1EW, ENGLAND

来源：

SURFACE SCIENCE | 1994年 / 307卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0039-6028(94)90363-8

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 prototype single crystal adsorption microcalorimeter developed in our laboratory utilises remote temperature sensing by infrared radiation and is currently restricted to substrates at room temperature. A new pyroelectric detection scheme has now been developed which can be used at low substrate temperatures. The first low temperature calorimetric results are presented, for oxygen on Ni{100}, together with sticking probability measurements. Significant differences are observed between substrate temperatures of 100 and 300 K; these are discussed in terms of differences in precursor mobility and 0 adatom distribution in the adlayers.

引用

页码：16 / 22

页数：7

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