Abstract

Abstract Although γ/η-Mo4O11 and Mo2Ta2O11 are used in a variety of industrial applications and can easily be synthesized in a chemical vapour transport (CVT) process or reactions in silica ampoules, respectively, only few data are available concerning their physical properties. In this paper, we further explore the properties of the three compounds with respect to their thermal and magnetic behavior, surface composition, and Raman spectroscopic properties.

Highlights

  • Elemental molybdenum comprises a tremendous diversity in its range of applications

  • We further explore the properties of the three compounds with respect to their thermal and magnetic behavior, surface composition, and Raman spectroscopic properties

  • The molybdenum disulfide is oxidized by roasting to form molybdenum trioxide, which in turn can be reduced with hydrogen via molybdenum dioxide to yield the pure molybdenum

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Summary

Introduction

Elemental molybdenum comprises a tremendous diversity in its range of applications. Utilization covers i.e. the heavy industry, where molybdenum is used in a mass range of 0.25–8% to drastically increase toughness and significantly decrease brittleness of steel. Abstract: γ/η-Mo4O11 and Mo2Ta2O11 are used in a variety of industrial applications and can be synthesized in a chemical vapour transport (CVT) process or reactions in silica ampoules, respectively, only few data are available concerning their physical properties. Zoller et al.: Characterization of γ/η-Mo4O11 and Mo2Ta2O11 particular interest, as they form in large quantities during the reduction process.

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