ANOMALOUS DESORPTION OF H-2 FROM TIHX FILMS, 0.3 LESS-THAN X LESS-THAN 1.8

被引：6

作者：

KASEMO, B ^{[1
]}

TORNQVIST, E ^{[1
]}

JOHANSSON, PK ^{[1
]}

机构：

[1] CHALMERS UNIV TECHNOL, INST THEORET PHYS, S-41296 GOTHENBURG, SWEDEN

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 68卷 / 2-3期

关键词：

D O I：

10.1016/0009-2614(79)87229-2

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：

UHV-prepared Ti films exposed to hydrogen at pressures of 10-6-10-5 Torr show unexpected desorption of H2 at room temperature. The desorption occurs only at average H/Ti atomic ratios x ≳ 0.3. A model is proposed that explains the desorption and well describes the absorption-desorption kinetics. The formation of a stable surface hydride at x ≈ 0.3 and a concentration dependent chemical potential for hydrogen in the surface hydride are important ingredients in the model. © 1979.

引用

页码：416 / 419

页数：4

共 9 条

[1] PHOTOEMISSION ENERGY-LEVEL MEASUREMENTS OF SORBED GASES ON TITANIUM [J].

EASTMAN, DE .

SOLID STATE COMMUNICATIONS, 1972, 10 (10) :933-&

[2]

JOHANSSON PK, 7930 CHALM U TECHN I

[3] KINETICS OF HYDROGEN INTERACTION WITH TIHX FILMS, 0 LESS-THAN-OR-EQUAL-TO X "LESS-THAN-OR-APPROXIMATELY-EQUAL-TO 2 [J].

KASEMO, B ;

TORNQVIST, E .

APPLICATIONS OF SURFACE SCIENCE, 1979, 3 (03) :307-328

[4] QUARTZ CRYSTAL MICROBALANCE MEASUREMENTS OF O-TI AND CO-TI ATOM RATIOS ON VERY THIN TI FILMS [J].

KASEMO, B ;

TORNQVIST, E .

SURFACE SCIENCE, 1978, 77 (02) :209-218

[5] ISOTOPE EFFECT IN PUMPING OF HYDROGEN BY TITANIUM THIN-FILMS [J].

MALINOWSKI, ME .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1978, 15 (01) :95-97

[6]

MUELLER WM, 1968, METAL HYDRIDES, pCH8

[7] KINETICS OF HYDROGEN-TITANIUM REACTION [J].

REICHARD.JW .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1972, 9 (01) :548-&

[8] ELEKTRISCHE UND KALORIMETRISCHE MESSUNGEN AM SYSTEM TITAN WASSERSTOFF BEI 273 DEGREES K [J].

WEDLER, G ;

STROTHEN.H .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-FRANKFURT, 1966, 48 (1-2) :86-+

[9]

Wiswall R, 1978, HYDROGEN METALS, VII, P5

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