Bimetallic Au-Cu/CeO2 catalyst: synthesis, structure and catalytic properties in selective oxidation of CO

The ability to prepare bimetallic Au-Cu catalysts by double decomposition of the complex [Au(en)2]2[Cu(C2O4)2]3·8H2O is considered. It is shown that this preparation method allows to selectively receive the nanoparticles of solid solution Au0,4Cu0,6 on the surface of the support. The composition corresponds of the stoichiometry of dual complex salt. Properties of bimetallic Au-Cu/CeO2 and monometallic Au/CeO2 and Cu/CeO2 catalysts were tested in the selective oxidation of CO in a mixture of CO2 and H2O. Experiments were carried out in flow catalytic unit in the temperature range 50–250 °C in a mixture of the following composition vol.%: CO – 1; O2 – 0,6; H2O – 10; CO2 – 20; H2 – 60 and He-balance, with the volume flow rate (WHSV) 276 000 sm3·g–1·h–1. The bimetallic catalyst allowed to oxidize significantly greater amount of CO at a higher selectivity in the presence of CO2 and H2O in a mixture over then the monometallic catalysts. The selective oxidation of carbon monoxide in the presence of hydrogen is a promising method of deep cleaning hydrogen from gaseous mixtures of carbon monoxide. The purified hydrogen gas may be used to power portable power plants based on low temperature proton exchange membrane fuel cell, also for synthesis of ammonia and for hydrogenation processes in thin organic synthesis.

1. Denkwitz Y., Schumacher B., Kucerova G., Behm R.J. // J. Catal. 2009. Vol. 267. P. 78.

2. Galletti C., Fiorot S., Specchia S., Saracco G., Specchia V. // Chem. Eng. J. 2007. Vol. 134. P. 45.

3. Sciré S., Crisafulli C., Riccobene P.M., Patané G., Pistone A. // Appl. Catal. A. 2012. Vol. 417—418. P. 66.

4. Liao X., Chu W., Dai X., Pitchon V. // Appl. Catal. A. 2012. Vol. 449. P. 131.

5. Avgouropoulos G., Ioannides T., Papadopoulou Ch., Batista J., Hocevar S., Matralis H.K. // Catal. Today 2002. Vol. 75. P. 157.

6. Avgouropoulos G., Papavasiliou J., Tabakova T., Idakiev V., Ioannides T. // Chem. Eng. J. 2006. Vol. 124. P. 41.

7. Yang X., Liao S., Song H., Li Y., Fu Z., Su Y. // J. Catal. 2012. Vol. 291. P. 36.

8. Edwards J.K., Solsona B.E., Landon P., Carley A.F., Herzing A., Kiely C.J., Hutchings G.J. // J. Catal. 2005.

9. Vol. 236. P. 69—79.

10. Menegazzo F., Butri P., Signoretto M., Manzoli M., Vankova S., Boccuzzi F., Pinna F., Strukul G. // J. Catal. 2008. Vol. 257. P. 369.

11. Lopez-Sanchez J.A., Dimitratos N., Glanville N., Kesavan L., Hammond C., Edwards J.K., Carley A.F., Kiely C.J., Hutchings G.J. // Appl. Catal. A. 2011. Vol. 391. P. 400.

12. Bernardotto G., Menegazzo F., Pinna F., Signoretto M., Cruciani G., Strukul G. // Appl. Catal. A. 2009. Vol. 358. P. 129.

13. Enache D.I., Edwards J.K., Landon P., Solsona-Espriu B., Carley A.F., Herzing A.A., Watanabe M., Kiely C.J.,

14. Knight D.W., Hutchings G.J. // Science 2006. Vol. 311. P. 362.

15. Luo J., Njoki P.N., Mott D., Wang L., Zhong C.-J. // Langmuir 2006. Vol. 22(6). P. 2892.

16. Bianchi C.L., Canton P., Dimitratos N., Porta F., Prati L. // Catal. Today 2005. Vol. 102—103. P. 203.

17. Gómez-Cortés A., Díaz G., Zanella R., Ramírez H., Santiago P., Saniger J.M. // J. Phys. Chem. C. 2009 Vol. 113(22). P. 9710.

18. Liu X., Wang A., Zhang T., Su D.-S., Mou C.-Y. // Catal. Today 2011. Vol. 160. P. 103.

19. Mozer T.S., Dziuba D.A., Vieira C.T.P., Passos F.B. // J. Pow. Sources 2009. Vol. 187. P. 209.

20. Da Silva Lima Fonseca J., Ferreira H.S., Bion N., Pirault-Roy L., do Carmo Rangel M., Duprez D., Epron F. // Catal. Today 2012. Vol. 180 P. 34.

21. Gamboa-Rosales N.K., Ayastuy J.L., Gonzalez-Marcos M.P., Gutierrez-Ortiz M.A. // Int. J. Hydrogen Energy 2012. Vol. 37. P. 7005.

22. Liu X., Wang A., Li L., Zhang T., Mou C.-Y., Lee J.-F. // J. Catal. 2011. Vol. 278. P. 288.

23. Sobyanin V.A., Snytnikov P.V., Kozlov D.V., Vorontsov A.V., Korenev S.V., Gubanov A.I., Yusenko K.V., Shubin Yu.V., Venediktov A.B. Patent RU 2294240.

24. Potemkin D.I., Filatov E.Yu., Zadesents A.V., Snytnikov P.V., Shubin Yu.V., Sobyanin V.A. // Chem. Eng. J. 2012. Vol. 207—208. P. 683.

25. Snytnikov P.V., Yusenko K.V., Korenev S.V., Shubin Yu.V., Sobyanin V.A. // Kinet. Catal. 2007. Vol. 48(2). P. 276.

26. PCPDFWin, Ver 1.30, JCPDS ICDD, Swarthmore, PA, USA, 1997.

27. Makotchenko E.V., Bykova E.A., Semitut E.Yu., Shubin Yu.V., Snytnikov P.V., Plyusnin P.E. // J. Struct. Chem. 2011. Vol. 52(5). P. 924.

28. Moulder J.F., Stickle W.F. in: P.E. Sobol (Ed.), Handbook of X-ray Photoelectron Spectroscopy, Perkin-Elmer Corporation, Physical Electronics Division, Eden/Prairie/Minnesota, 1992.

29. Potemkin D.I., Snytnikov P.V., Pakharukova V.P., Semin G.L., Moroz E.M., Sobyanin V.A. // Kinet. Catal. 2010. Vol. 51(1). P. 119.

30. Biesinger M.C., L. Lau W.M., Gerson A.R., Smart R.St.C. // Appl. Surf. Sci. 2010. Vol. 257. P. 887.

31. Snytnikov P.V., Potemkin D.I., Rebrov E.V., Sobyanin V.A., Hessel V., Schouten J.C. // Chem. Eng. J. 2010. Vol. 160. P. 923.

32. Potemkin D.I., Snytnikov P.V., Belyaev V.D., Sobyanin V.A. // Chem. Eng. J. 2011. Vol. 176—177. P. 165.

33. Snytnikov P.V., Badmaev S.D., Volkova G.G., Potemkin D.I., Zyryanova M.M., Belyaev V.D., Sobyanin V.A. //

34. Int. J. of Hydrogen Energy 2012. Vol. 37. P. 16388.

35. Snytnikov P.V., Popova M.M., Men Y., Rebrov E.V., Kolb G., Hessel V., Schouten J.C., Sobyanin V.A. // Appl. Catal. A. l. 2008. Vol. 350(1). P. 53.