THERMAL FIELD DESORPTION SPECTROSCOPY OF CHEMISORBED HYDROGEN FOR A SINGLE-STEP SITE

被引：11

作者：

ERNST, N ^{[1
]}

BLOCK, JH ^{[1
]}

KREUZER, HJ ^{[1
]}

YE, X ^{[1
]}

机构：

[1] DALHOUSIE UNIV,DEPT PHYS,HALIFAX B3H 3J5,NS,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.71.891

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The steady state molecular hydrogen ion yield from a single atomic step site of a [110]-oriented tungsten and of a [100]-oriented rhodium crystal is determined as a function of surface temperature using mass and energy resolved probe hole field ion microscopy. A second order kinetic model is developed to fit the experimental data thus obtaining the hydrogen binding energy. For local fields of about 3 V/angstrom the data are close to values obtained from thermal desorption spectroscopy. A comparison is made with calculations of the field-adsorption binding energy of atomic hydrogen on a jellium surface based on density functional theory,

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页码：891 / 894

页数：4

相关论文

共 20 条

[1] INTERACTION OF HYDROGEN WITH SOLID-SURFACES [J].

CHRISTMANN, K .

SURFACE SCIENCE REPORTS, 1988, 9 (1-3) :1-163

[2] ISOTOPIC EFFECTS IN FIELD DESORPTION OF HYDROGEN FROM TUNGSTEN [J].

DRACHSEL, W ;

BLOCK, JH .

SURFACE SCIENCE, 1991, 246 (1-3) :141-149

[3] THE INTERACTION OF HYDROGEN WITH A RHODIUM (110) SURFACE [J].

EHSASI, M ;

CHRISTMANN, K .

SURFACE SCIENCE, 1988, 194 (1-2) :172-198

[4] TEMPERATURE PROGRAMMED FIELD DESORPTION OF PROTONATED HYDROGEN FROM RHODIUM AND TUNGSTEN [J].

ERNST, N ;

BLOCK, JH .

SURFACE SCIENCE, 1983, 126 (1-3) :397-404

[5] ON THE FULL-WIDTH-AT-HALF-MAXIMUM OF FIELD-ION ENERGY-DISTRIBUTIONS [J].

ERNST, N ;

BOZDECH, G ;

SCHMIDT, H ;

SCHMIDT, WA ;

LARKINS, GL .

APPLIED SURFACE SCIENCE, 1993, 67 (1-4) :111-117

[6] APPEARANCE ENERGY SPECTROSCOPY OF FIELD IONS [J].

ERNST, N .

APPLIED SURFACE SCIENCE, 1993, 67 (1-4) :82-96

[7] GENERALIZED THEORY OF STANDARD FIELD-ION APPEARANCE ENERGIES [J].

FORBES, RG .

SURFACE SCIENCE, 1976, 61 (01) :221-240

[8] FIELD ADSORPTION AND DESORPTION OF HYDROGEN ON W(110) - AN ATOM-PROBE STUDY [J].

HELLSING, M ;

HELLSING, B .

SURFACE SCIENCE, 1986, 176 (1-2) :249-260

[9] PULSED LASER STIMULATED FIELD DESORPTION OF HYDROGEN FROM MOLYBDENUM [J].

KELLOGG, GL .

JOURNAL OF CHEMICAL PHYSICS, 1981, 74 (02) :1479-1487

[10] SELF-CONSISTENT CALCULATION OF ATOMIC ADSORPTION ON METALS IN HIGH ELECTRIC-FIELDS [J].

KREUZER, HJ ;

WANG, LC ;

LANG, ND .

PHYSICAL REVIEW B, 1992, 45 (20) :12050-12055