SURFACE ELECTRICAL-PROPERTIES OF TUNGSTEN-OXIDES IN EQUILIBRIUM WITH THE GAS-PHASE

被引：15

作者：

BONNET, JP ^{[1
]}

NOWOTNY, J ^{[1
]}

ONILLON, M ^{[1
]}

SIKORA, I ^{[1
]}

机构：

[1] POLISH ACAD SCI,INST CATALYSIS & SURFACE CHEM,PL-30239 KRAKOW,POLAND

来源：

OXIDATION OF METALS | 1979年 / 13卷 / 03期

关键词：

electrical conductivity; nonstoichiometry; work function;

D O I：

10.1007/BF00603671

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The work function of the tungsten-oxygen system has been investigated at temperatures of 750, 800 and 850°C vs. oxygen partial pressure within the stability range of various oxide phases. The reproducibility of both reduction and oxidation runs indicates that the investigated system achieves the thermodynamic equilibrium state. Sharp changes of the work function are observed at oxygen partial pressures corresponding to the phase transformations. This effect allows a determination the oxide phases WO3, WO2.90, WO2.72, and WO2 as the most stable and well-defined. Good agreement between the work function and the electrical conductivity data has been shown. This indicates that the work function method is sensitive to the crystalline structure of semiconducting oxides. Good agreement with the literature data is also observed. © 1979 Plenum Publishing Corporation.

引用

页码：273 / 282

页数：10

共 23 条

[1] EXAMINATION OF SUBSTOICHIOMETRIC WO3-X CRYSTALS BY ELECTRON MICROSCOPY [J].

ALLPRESS, JG ;

TILLEY, RJD ;

SEINKO, MJ .

JOURNAL OF SOLID STATE CHEMISTRY, 1971, 3 (03) :440-&

[2]

ANDERSON JS, 1964, P CHEM SOC LONDON, V166

[3]

Berak J. M., 1970, J SOLID STATE CHEM, V2, P109, DOI DOI 10.1016/0022-4596(70)90040-X

[4]

BONNET JP, THESIS U BORDEAUX 1

[5]

BOUSQUET J, 1963, CR HEBD ACAD SCI, V256, P694

[6]

BOUSQUET J, 1964, CR HEBD ACAD SCI, V258, P3869

[7]

CHOAINMA.C, 1964, CR HEBD ACAD SCI, V259, P4700

[8]

GULBRANSEN A, 1960, WADCTR, V59, P575

[9]

Hagg G., 1944, ARK KEMI, V19A, P1

[10]

MAGNELI A, 1950, ARK KEMI, V1, P513

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