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Influence of copper powder structure on the catalytic properties of cerium oxide

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PII
S0023476124030173-1
DOI
10.31857/S0023476124030173
Publication type
Article
Status
Published
Authors
O. M. Zhigalina
  • Affiliation: N.N. Semenov Federal Research Center for Chemical Physics RAS
Volume/ Edition
Volume 69 / Issue number 3
Pages
511-521
Abstract
The influence of the structure of copper powder particles on the catalytic activity of the CeO2/Cu catalyst was studied using the methods of X-Ray diffraction, electron microscopy, electron diffraction, energy dispersive X-Ray analysis, as well as programmed temperature reduction of CO (CO-TPR). Nanocomposites were obtained by mechanochemical synthesis using copper particles differing in size and morphology: micron-sized dendrites and nanoparticles. It was shown that the activity of the catalyst obtained from nanosized copper is two times higher, which is due to the presence of CuxO clusters located on the atomic steps of cerium oxide nanocrystals. This arrangement of clusters apparently ensures that the activating centers are not blocked. Thus, the surface structure of cerium oxide particles formed when using nanosized copper powder is a key factor responsible for the catalytic activity.
Keywords
Date of publication
26.07.2025
Number of purchasers
0
Views
38

References

  1. 1. Soria J., Conesa J.C., Martinez-Arias A., Coronado J.M. // Solid State Ionics. 1993. V. 65. P. 755. https://doi.org/10.1016/0167-2738 (93)90191-5
  2. 2. James T.E., Hemmingson S.L., Ito T., Campbell C.T. // J. Phys. Chem. 2015. V. 119. P. 17209. https://doi.org/10.1021/acs.jpcc.5b04621
  3. 3. Lu J., Wang J., Zou Q. et al. // ACS Catal. 2019. V. 9. № 3. P. 2177. https://doi.org/10.1021/acscatal.8b04035
  4. 4. Konsolakis M., Lykaki M. // Catalysts. 2021. V. 11. № 4. P. 452. https://doi.org/10.3390/catal11040452
  5. 5. Varvoutis G., Lykaki M., Marnellos G.E., Konsolakis M. // Catalysts. 2023. V. 13. P. 275. https://doi.org/10.3390/catal13020275
  6. 6. Фирсова А.А., Морозова О.С., Леонов А.В. и др. // Кинетика и катализ. 2014. Т. 55. № 6. С. 783. https://doi.org/10.7868/S0453881114060069
  7. 7. Borchers Ch., Martin M.L., Vorobjeva G.A. et al. // J. Nanopart. Res. 2016. V. 18. P. 344. https://doi.org/10.1007/s11051-016-3640-6
  8. 8. Морозова О.С., Фирсова А.А., Тюленин Ю.П. и др. // Кинетика и катализ. 2020. Т. 61. № 5. P. 741. https://doi.org/10.31857/S0453881120050081
  9. 9. Zhigach A.N., Kuskov M.L., Leipunskii I.O. et al. // Bulletin of the Russian Academy of Sciences: Energetic. 2012. V. 3. P. 80.
  10. 10. Shelekhov E.V., Sviridova T.A. // Met. Sci. Heat Treat. 2000. V. 42. P. 309. https://doi.org/10.1007/BF02471306
  11. 11. Konsolakis M. // Appl. Catal. B: Enviromental. 2016. V. 198. P. 49. https://doi.org/10.1016/j.apcatb.2016.05.037
  12. 12. Van Deelen T.W., Mejía C.H., De Jong K.P. // Nature Catal. 2019. V. 2. P. 955. https://doi.org/10.1038/s41929-019-0364-x
  13. 13. Cipriano L.A., Di Liberto G., Pacchioni G. // ACS Catal. 2022. V. 12. № 19. P. 11682. https://doi.org/10.1021/acscatal.2c03020
  14. 14. Gao Y., Zhang L., Van Hoof A.J.F., Hensen E.J.M. // Appl. Catal. A. General. 2020. V. 602. P. 117712. https://doi.org/10.1016/j.apcata.2020.117712
  15. 15. Cruz A.R.M., Assaf E.M., Gomes J.M., Assaf J.M. // Catal. Today. 2021. V. 381. № 1. P. 42. https://doi.org/10.1016/j.cattod.2020.09.007
  16. 16. Borchers Ch., Martin M.L., Vorobjeva G.A. et al. // AIP Adv. 2019. V. 9. P. 065115. https://doi.org/10.1063/1.5109067
  17. 17. Paier J., Penschke C., Sauer J. // Chem. Rev. 2013. V. 113. P. 3949. https://doi.org/10.1021/cr3004949
  18. 18. Chen A., Yu X., Zhou Y. et al. // Nature Catalysis. 2019. V. 2. P. 334. https://doi.org/10.1038/s41929-019-0226-6
  19. 19. Puigdollers A.R., Schlexer P., Tosoni S., Pacchioni G. //ACS Catal. 2017. V. 7. P. 6493. https://doi.org/10.1021/acscatal.7b01913
  20. 20. Kappis K., Papavasiliou J. // ChemCatChem. 2019. V. 11. № 19. P. 4765. https://doi.org/10.1002/cctc.201901108
  21. 21. Martínez-Munuera J.C., Javier G.M., Yeste M.P. et al. // Appl. Surf. Sci. 2022. V. 575. P. 151717. https://doi.org/10.1016/j.apsusc.2021.151717
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