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Kinetics studies of hydrogen reduction of Cu2O

  • Ulrika Tilliander EMAIL logo , Ragnhild E. Aune and Sesadri Seetharaman
Published/Copyright: January 7, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 97 Issue 1

Abstract

In present work, reduction kinetics of Cu2O by hydrogen gas was studied by thermogravimetric analyses (TGA). The TGA experiments were carried out both isothermally and non-isothermally on shallow powder beds. It was established that additions of Ni or NiO did not have any serious effect on the kinetics of reduction of Cu2O. The composition and microstructures of the reaction products were analyzed after each experiment by X-ray diffraction (XRD) as well as by scanning electron microscopy (SEM). The activation energy for the reaction was evaluated from isothermal as well as non-isothermal reduction experiments and was found to be in good agreement. The impact of the stability of the oxide on the activation energy for hydrogen reduction is also discussed.

Keywords: Copper oxide; Hydrogen reduction; Kinetics; Activation energy
Ulrika Tilliander Department of Materials Science and Engineering Division of Materials Process Science Royal Institute of Technology Brinellvägen 23, SE-10044 Stockholm, Sweden

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Received: 2005-05-20
Accepted: 2005-10-29
Published Online: 2022-01-07

© 2006 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. The Pd-rich part of the Pd–B phase diagram
  4. Thermodynamic optimizing of the Li–Sn system
  5. Thermodynamic analysis of high-temperature heazlewoodite
  6. Diffusion of chromium in β-Ti under high pressure
  7. Density and surface tension of liquid ternary Ni–Cu–Fe alloys
  8. Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
  9. Development of cube recrystallization textures in high-purity Al
  10. Formation of cube recrystallized grains in high-purity Al
  11. Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
  12. The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
  13. Kinetics studies of hydrogen reduction of Cu2O
  14. Decomposition kinetics of expanded austenite with high nitrogen contents
  15. Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
  16. Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
  17. Richtlinien für Autoren
  18. Instructions for authors
  19. Personal/ personelles
  20. Press/ Presse
  21. Conferences /Konferenzen
  22. Frontmatter
  23. Editorial
  24. Editorial
  25. Articles Basic
  26. The Pd-rich part of the Pd–B phase diagram
  27. Thermodynamic optimizing of the Li–Sn system
  28. Thermodynamic analysis of high-temperature heazlewoodite
  29. Diffusion of chromium in β-Ti under high pressure
  30. Density and surface tension of liquid ternary Ni–Cu–Fe alloys
  31. Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
  32. Articles Applied
  33. Development of cube recrystallization textures in high-purity Al
  34. Formation of cube recrystallized grains in high-purity Al
  35. Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
  36. The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
  37. Kinetics studies of hydrogen reduction of Cu2O
  38. Decomposition kinetics of expanded austenite with high nitrogen contents
  39. Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
  40. Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
  41. Notifications/Mitteilungen
  42. Richtlinien für Autoren
  43. Instructions for authors
  44. Personal/ personelles
  45. Press/ Presse
  46. Conferences /Konferenzen
https://doi.org/10.1515/ijmr-2006-0011
Keywords for this article
Copper oxide; Hydrogen reduction; Kinetics; Activation energy

Articles in the same Issue

  1. Frontmatter
  2. Editorial
  3. The Pd-rich part of the Pd–B phase diagram
  4. Thermodynamic optimizing of the Li–Sn system
  5. Thermodynamic analysis of high-temperature heazlewoodite
  6. Diffusion of chromium in β-Ti under high pressure
  7. Density and surface tension of liquid ternary Ni–Cu–Fe alloys
  8. Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
  9. Development of cube recrystallization textures in high-purity Al
  10. Formation of cube recrystallized grains in high-purity Al
  11. Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
  12. The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
  13. Kinetics studies of hydrogen reduction of Cu2O
  14. Decomposition kinetics of expanded austenite with high nitrogen contents
  15. Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
  16. Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
  17. Richtlinien für Autoren
  18. Instructions for authors
  19. Personal/ personelles
  20. Press/ Presse
  21. Conferences /Konferenzen
  22. Frontmatter
  23. Editorial
  24. Editorial
  25. Articles Basic
  26. The Pd-rich part of the Pd–B phase diagram
  27. Thermodynamic optimizing of the Li–Sn system
  28. Thermodynamic analysis of high-temperature heazlewoodite
  29. Diffusion of chromium in β-Ti under high pressure
  30. Density and surface tension of liquid ternary Ni–Cu–Fe alloys
  31. Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
  32. Articles Applied
  33. Development of cube recrystallization textures in high-purity Al
  34. Formation of cube recrystallized grains in high-purity Al
  35. Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
  36. The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
  37. Kinetics studies of hydrogen reduction of Cu2O
  38. Decomposition kinetics of expanded austenite with high nitrogen contents
  39. Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
  40. Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
  41. Notifications/Mitteilungen
  42. Richtlinien für Autoren
  43. Instructions for authors
  44. Personal/ personelles
  45. Press/ Presse
  46. Conferences /Konferenzen
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