Skip to main content
SpringerLink
Log in

Influence of gold presence and thermal treatment on recrystallization of copper-manganese ferrite catalysts

  • Published:
Hyperfine Interactions Aims and scope Submit manuscript

Abstract

The present work aims to evaluate the influence of synthesis conditions and gold addition on structural and functional characteristics of copper-manganese ferrites. Object of the investigation is spinel ferrite with composition Cu0.5Mn0.5Fe2O4, thermally treated at different conditions. The influence of gold deposition on structure of ferrites and catalytic properties in water-gas shift reaction (WGSR) is studied on the ferrite sample obtained at 300 ∘C. Structural characteristics of samples are determined by Mössbauer spectroscopy and X-Ray diffraction. The Mössbauer spectra of treated at different temperature ferrite samples consist of sextet and doublet components. A comparative assessment of crystallite size of ferrite phase was accomplished from the calculated value of the hyperfine fields. It was established well expressed tendency of ferrite crystallite growth with increasing of thermal treatment temperature. Increasing of the ferrite crystallite size in presence of gold in the sample is established, too. The analysis of catalytic activity in WGSR shows unexpected result i.e. the activity of gold-modified ferrite sample is lower than that of the sample without gold. Probably this is due to complex factors, including recrystallization of the ferrite phase due to additional thermal treatment at higher temperature, addition of gold, changes of the structural features and phase composition during catalytic test.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Kovtunenko, P.V.: Defect formation in spinels in oxygen nonstoichiometry (a review). Glass Ceram. 54, 143–148 (1997)

    Article  Google Scholar 

  2. Lang, L.L., Xu, J., Li, Z.Z., Qi, W.H., Tang, G.D., Shang, Z.F., Zhang, X.Y., Wu, L.Q., Xue, L.C.: Study of the magnetic structure and the cation distributions in MnCo spinel ferrites. Physica B. 462, 47–53 (2015)

    Article  Google Scholar 

  3. Wahba, A.M., Mohamed, M.B.: Structural and magnetic characterization and cation distribution of nanocrystalline CoxFe3−xO4 ferrites. J. Magn. Magn. Mater. 378, 246–252 (2015)

    Article  ADS  Google Scholar 

  4. Tholkappiyan, R., Vishista, K.: Combustion synthesis of Mg–Er ferrite nanoparticles: Cation distribution and structural, optical, and magnetic properties. Mater. Sci. Semicond. Process. 40, 631–642 (2015)

    Article  Google Scholar 

  5. Liu, K., Rykov, A.I., Wang, J., Zhang, T.: Chapter One -Recent advances in the application of möarticleßbauer spectroscopy in heterogeneous catalysis. Adv. Catal. 58, 1–142 (2015)

    Google Scholar 

  6. Reddy, G.K., Smirniotis, P.G.: Water gas shift reaction - research developments and applications. Elsevier B.V, Amsterdam (2015)

    Google Scholar 

  7. Velinov, N., Koleva, K., Tsoncheva, T., Paneva, D., Manova, E., Tenchev, K., Kunev, B., Genova, I., Mitov, I.: Copper-cobalt ferrites as catalysts for methanol decomposition. Cent. Eur. J. Chem. 12, 250–259 (2014)

    Article  Google Scholar 

  8. Velinov, N., Koleva, K., Tsoncheva, T., Manova, E., Paneva, D., Tenchev, K., Kunev, B., Mitov, I.: Nanosized Cu0.5Co0.5Fe2O4 ferrite as catalyst for methanol decomposition: Effect of preparation procedure. Catal. Commun. 32, 41–46 (2013)

    Article  Google Scholar 

  9. Tsoncheva, T., Manova, E., Velinov, N., Paneva, D., Popova, M., Kunev, B., Tenchev, K., Mitov, I.: Thermally synthesized nanosized copper ferrites as catalysts for environment protection. Catal. Commun. 12, 105–109 (2010)

    Article  Google Scholar 

  10. Koleva, K., Velinov, N., Tsoncheva, T., Mitov, I.: Mössbauer study of Cu1−xZnxFe2O4 catalytic materials. Hyperfine Interact. 226, 89–97 (2014)

    Article  ADS  Google Scholar 

  11. Andreeva, D., Idakiev, V., Tabakova, T., Andreev, A.: Low-temperature water–gas shift reaction over Au/α-Fe2O3. J. Catal. 158, 354–355 (1996)

    Article  Google Scholar 

  12. Hua, J., Zheng, K., Wei, X., Lin, Q.: Influence of calcination temperature on the structure and catalytic performance of Au/iron oxide catalysts for water–gas shift reaction. Appl. Catal. A 259, 121–130 (2004)

    Article  Google Scholar 

  13. Gabbasov, R.R., Cherepanov, V.M., Chuev, M.A., Polikarpov, M.A., Panchenko, V.Y.: Size effect of Mössbauer parameters in iron oxide nanoparticles. Hyperfine Interact 226, 383–387 (2014)

    Article  ADS  Google Scholar 

  14. Velinov, N., Petrova, T., Tsoncheva, T., Genova, I., Koleva, K., Kovacheva, D., Mitov, I.: Auto-combustion synthesis, mössbauer study and catalytic properties of copper-manganese ferrites. Hyperfine Interact 237, 1–11 (2016)

    Article  Google Scholar 

  15. žák, T., Jirásková, Y.: CONFIT: Mössbauer spectra fitting program. Surf. Interface Anal. 38, 710–714 (2006)

    Article  Google Scholar 

  16. Rangel, M.C., Querino, P.S., Borges, S.M.S., Marchetti, S.G., Assaf, J.M., Vásquez, D.P.R., Rodella, C.B., Silva, T.F., da Silva, A.H.M., Ramon, A.P.: Hydrogen purification over lanthanum-doped iron oxides by WGSR. Catal Today(2017). https://doi.org/10.1016/j.cattod.2017.05.058

  17. Tabakova, T., Kolentsova, E., Dimitrov, D., Ivanov, K., Manzoli, M., Venezia, A.M., Karakirova, Y., Petrova, P., Nihtianova, D., Avdeev, G.: CO and VOCs catalytic oxidation over alumina supported Cu–Mn catalysts: effect of Au or Ag deposition. Top. Catal. 60, 11–122 (2017)

    Article  Google Scholar 

  18. Khan, A., Smirniotis, P.G.: Relationship between temperature-programmed reduction profile and activity of modified ferrite-based catalysts for WGS reaction. J. Mol. Catal. A 280, 43–51 (2008)

    Article  Google Scholar 

  19. Edwards, M.A., Whittle, D.M., Rhodes, C., Ward, A.M., Rohan, D., Shannon, M.D., Hutchings, G.J., Kiely, C.J.: Microstructural studies of the copper promoted iron oxide/chromia water-gas shift catalyst. Phys. Chem. Chem. Phys. 4, 3902–3908 (2002)

    Article  Google Scholar 

  20. Kappen, P., Grunwaldt, J.-D., Hammershøi, B.S., Troger, L., Clausen, B.J.: The state of Cu promoter atoms in high-temperature shift catalysts-An in situ fluorescence XAFS study. J. Catal. 198, 56–65 (2001)

    Article  Google Scholar 

Download references

Acknowledgments

Financial support of project DFNI E02/2/2014 is greatly acknowledged.

Author information

Authors and Affiliations

  1. Institute of Catalysis, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    N. I. Velinov, T. M. Petrova, I. B. Ivanov, T. T. Tabakova, V. D. Idakiev & I. G. Mitov

Authors
  1. N. I. Velinov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. T. M. Petrova
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. I. B. Ivanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. T. T. Tabakova
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. V. D. Idakiev
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. I. G. Mitov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to N. I. Velinov.

Additional information

This article is part of the Topical Collection on Proceedings of the International Conference on the Applications of the Mössbauer Effect (ICAME 2017), Saint-Petersburg, Russia, 3-8 September 2017

Edited by Valentin Semenov

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Velinov, N.I., Petrova, T.M., Ivanov, I.B. et al. Influence of gold presence and thermal treatment on recrystallization of copper-manganese ferrite catalysts. Hyperfine Interact 238, 72 (2017). https://doi.org/10.1007/s10751-017-1447-1

Download citation

  • Published:

  • DOI: https://doi.org/10.1007/s10751-017-1447-1

Keywords

Search

Navigation