Oxygen diffusivity in MoO₃ as determined by a temperature programmed method

Todd P. St. Clair; Jill M. Restad; S. Ted Oyama

doi:10.1557/jmr.1998.0204

journal article·1998-06

Oxygen diffusivity in MoO₃ as determined by a temperature programmed method

Todd P. St. Clair, Jill M. Restad, S. Ted Oyama

Journal of Materials Research· Volume 13· Issue 6

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Source abstract

Abstract

A temperature programmed method for determining diffusivities has been previously applied to oxygen diffusivity in V₂O₅. In this communication we extend the method to the case of oxygen diffusivity in MoO₃. The reduction of MoO₃ to MoO₂ using NH₃ is utilized to obtain experimental parameters such as the temperature of reduction and the activation energy for oxygen diffusion. These parameters are in turn used to solve Fick's equation for the oxygen diffusivity D₀. The utility of this temperature programmed method for obtaining diffusivities has now been clearly established by extension to MoO₃.

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OpenAlex topics: Catalysis and Hydrodesulfurization Studies · Catalysis and Oxidation Reactions · Catalytic Processes in Materials Science

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (10)

Show source-provided references

1. 10.1016/0920-5861(90)87001-J10.1016/0920-5861(90)87001-J ↗

2. Elyutin · Sov. Phys. Dokl. · 1972 · 16 · 581

3. 10.1016/0042-207X(62)90978-810.1016/0042-207X(62)90978-8 ↗

4. Anderson · Chem. Eng. Sci. · 1963 · 18 · 147

5. 10.1016/0022-4596(92)90318-P10.1016/0022-4596(92)90318-P ↗

6. 10.1557/JMR.1997.006810.1557/JMR.1997.0068 ↗

7. 10.1016/0022-4596(85)90301-910.1016/0022-4596(85)90301-9 ↗

8. 10. Thermophysical Properties of High Temperature Solid Materials, Vol. 4: Oxides and their Solutions and Mixtures, edited by Touloukian Y. S. .

9. 10.1021/cm00008a01510.1021/cm00008a015 ↗

10. 10.1016/0920-5861(92)80176-N10.1016/0920-5861(92)80176-N ↗