HIGH ACTIVE CATALYSTS OF CO OXIDATION BASED ON OXIDES OF COBALT AND CERIUM OBTAINED BY CITRATE METHOD
DOI:
https://doi.org/10.15421/081913Keywords:
citrate method, Co3O4, CeO2, catalysts, CO oxidationAbstract
The article deals with obtaining of highly dispersed oxide materials on the base of cobalt and cerium and their catalytic activity for CO oxidation. Іndividual cobalt and cerium oxides and binary oxides with Co:Ce molar ratio 1:1 were synthesized by citrate method. The temperature intervals of formation of Co,Ce-citrates, their decomposition to citraconates and decomposition of citraconates resulting to formation of oxides were found by differential thermal analysis. Phase compositions, specific surface areas and catalytic performances towards CO oxidation for the synthesized individual oxides and binary oxide systems were investigated. By XRD analysis it was established that cobalt and cerium oxide materials were obtained as highly dispersed Co3O4 with spinel structure and CeO2 with fluorite structure. Average crystallite sizes in the individual oxides were 36 and 15 nm for Co3O4 and CeO2, respectively. In the case of the binary oxides a decrease of the crystallite sizes to 13 nm (Co3O4) and 3–4 nm (CeO2) was shown. Higher specific surface area values of the binary oxide materials as compared with these values for the individual oxides agrees with XRD data assuming a formation of cobalt and cerium oxide particles with smaller sizes. Higher dispersion of the binary oxide systems is realized probably due to stabilization of Co3O4 and CeO2 particles of small sizes because of their interaction during oxide preparation and as a result formation of interface between them. A catalytic activity study shown that binary Co3O4–CeO2 system with metal ratio Co : Ce = 10 : 1 has demonstrated the highest activity – temperature of CO complete conversion was 148 °C. As a reason of this high catalytic activity, in addition of well-dispersed oxide state, may be formation of active mobile oxygen at the interface between Co3O4 and CeO2 particles.
References
Krylov, O. V. (2004). [Heterogeneous catalysis]. Moscow, Russian Federation: (In Russian).
Cai, Y., Xu, J., Guo, Y., Liu, J. (2019). Ultrathin, Polycrystalline, Two-Dimensional Co3O4 for Low-Temperature CO Oxidation. ACS Catal., 9(3), 2558–2567. https://doi.org/10.1021/acscatal.8b04064
Kelyp, A. A., Smirnova, N. P., Oleksenko, L. P., Lutsenko, L. V., Oranskaya, E. I., Ripko, A. P. (2013). Catalytic Activity of Co/SiO2 and Co/TiO2 Nanosized Systems in the Oxidation of Carbon Monoxide. Russ. J. Phys. Chem. A, 87(6), 1015–1020.
https://doi.org/10.1134/S0036024413060125
Sie, M.-C., Jeng, P.-D.i, Chen, P.-H., Wu, R.-C., Wang, C.-B. (2017). Evaluation of CO oxidation over Co3O4- supported NiO catalysts. AIP Conf. Proc., 1877(1), 070004-1–070004-9. https://doi.org/10.1063/1.4999890
Iablokov, V., Barbosa, R., Pollefeyt, G., Van Driessche, I., Chenakin, S., Kruse, N. (2015). Catalytic CO Oxidation over Well-Defined Cobalt Oxide Nanoparticles: Size-Reactivity Correlation. ACS Catal,, 5(10), 5714–5718. https://doi.org/10.1021/acscatal.5b01452
Mingle, K., Lauterbach, J. (2018). Synthesis-Structure-Activity Relationships in Co3O4 Catalyzed CO Oxidation. Front Chem., 6, 185-1–185-12. https://doi.org/10.3389/fchem.2018.00185
Oleksenko, L. P., Maksimovich, N. P., Shuvar, L. V., Matushko, I. P. (2013). Nanosized Semiconductor CoxOy/SnO2 Materials for Carbon Monoxide Sensors. Theor. Exper. Chem., 49(5), 310–314. https://doi.org/10.1007/s11237-013-9330-x
Oleksenko, L. P., Lutsenko, L. V. (2013) Catalytic activity of bimetal-containing Co,Pd systems in the oxidation of carbon monoxide. Russ. J. Phys. Chem. A, 87(2), 180–184.
https://doi.org/10.1134/S0036024413020210
Mock, S. A., Sharp, S. E., Stoner, T. R., Radetic, M. J., Zell, E. T., Wang, R. (2016). CeO¬2 nanorods-supported transition metal catalysts for CO oxidation. J. Colloid Interf. Sci., 466, 261–267.
http://dx.doi.org/10.1016/j.jcis.2015.12.026
Venkataswamy, P., Rao, K. N., Jampaiah, D., Reddy, B. M. (2015), Nanostructured manganese doped ceria solid solutions for CO oxidation at lower temperatures. Appl. Catal. B: Environ., 162, 122–132. http://dx.doi.org/10.1016/j.apcatb.2014.06.038
Zhan, W., Zhang, X., Guo, Y., Wang, L., Guo, Y., Lu, G. (2014). Synthesis of mesoporous CeO2-MnOx binary oxides and their catalytic performances for CO oxidation. J. Rare Earths, 32(2), 146–152. http://dx.doi.org/10.1016/S1002-0721(14)60044-2
Luo, J.-Y., Meng, M., Li, X., Li, X.-G., Zha, Y.-Q., Hu, T.-D., Zie, Y.-N., Zhang, J. (2008). Mesoporous Co3O4–CeO2 and Pd/Co3O4–CeO2 catalysts: Synthesis, cnaracterization and mechanistic study of their catalytic properties for low-temperature CO oxidation. J. Catal., 254, 310–324.
http://dx.doi.org/10.1016/j.jcat.2008.01.007
Guo, Q., Liu, Y. (2008). MnOx modified Co3O4-CeO2 catalysts for preferential oxidation of CO in H2-rich gases. Appl. Catal. B: Environ., 82, 19–26. http://dx.doi.org/10.1016/j.apcatb.2008.01.007
Gawade, P., Bayram, B., Alexander, A.-M. C., Ozkan, U. S. (2012). Preferential oxidation of CO (PROX) over CoOx/CeO2 in hydrogen-rich streams: Effect of cobalt loading. Appl. Catal. B: Environ., 128, 21–30. http://dx.doi.org/10.1016/j.apcatb.2012.06.032
Woods, M. P., Gawade, P., Tan, B., Ozkan, U. S. (2010). Preferential oxidation of carbon monoxide on Co/CeO2 nanoparticles. Appl. Catal. B: Environ., 97, 28–35. http://dx.doi.org/10.1016/j.apcatb.2010.03.015
Xue, L., Zhang, C., He, H., Teraoka, Y. (2007). Catalytic decomposition of N2O over CeO2 promoted Co3O4 spinel catalyst. Appl. Catal. B: Environ., 75, 167–174. https://doi.org/10.1016/j.apcatb.2007.04.013
Spadaro, L., Arena, F., Granados, M. L., Ojeda, M., Fierro, J. L. G., Frusteri, F. (2005). Metal - support interactions and reactivity of Co/CeO2 catalysts in the Fischer-Tropsch synthesis reaction. J. Catal., 234(2), 451–462. http://dx.doi.org/10.1016/j.jcat.2005.07.006
Liotta, L. F., Di Carlo, G., Longo, A., Pantaleo, G., Venezia, A. M. (2008). Support effect on the catalytic performance of Au/Co3O4–CeO2 catalysts for CO and CH4 oxidation. Catal. Today, 139(3). 174–179. http://dx.doi.org/10.1016/j.cattod.2008.04.025
Carabineiro, S. A. C., Chen, X., Konsolakis, M., Psarras, A. C., Tavares, P. B., Orfao J. J. M., Pereira, M. F. R., Figueiredo, J. L. (2015). Catalytic oxidation of toluene on Ce-Co and La-Co mixed oxides synthesized by exotemplating and evaporation methods. Catal. Today, 244, 161–171. https://doi.org/10.1016/j.cattod.2014.06.018
Andana, T., Piumetti, M., Bensaid, S., Russo, N., Fino, D., Pirone, R. (2016). CO and Soot Oxidation over Ce-Zr-Pr Oxide Catalysts. Nanoscale Res. Lett. 11:278, 1–9. https://doi.org/10.0.1186/s11671-016-1494-6
Liu, J., Zhao, Z., Wang, J., Xu, C., Duan, A., Jiang, G., Yang, Q. (2008). The highly active catalysts of nanometric CeO2–supported cobalt oxides for soot combustion. Appl. Catal. B: Environ., 84, 185–195. https://doi.org/10.1016/j.apcatb.2008.03.017
Soloviev, S. O., Kyriienko, P. I., Popovych, N. O. (2012). Effect of CeO2 and Al2O3 on the activity of Pd/Co3O4/cordierite catalyst in the three–way catalyst reactions (CO/NO/CnHm). J. Environ. Sci. 24(7), 1327–1333. https://doi.org/10.1016/S1001-0742(11)60930-3
Rodriguez, J. A., Grinter, D. C., Liu, Z, Palomino, R. M. and Senanayak, S. D. (2017). Ceria-based model catalysts: fundamental studies on the importance of the metal–ceria interface in CO oxidation, the water–gas shift, CO2 hydrogenation, and methane and alcohol reforming. Chem. Soc. Rev., 46(7), 1824–1841. https://doi.org/10.1039/c6cs00863a
Sulym, I., Sternik, D., Oleksenko, L., Lutsenko, L., Borysenko, M., Derylo-Marczewska, A. (2016). Highly dispersed silica-supported ceria–zirconia nanocomposites: Preparation and characterization. Surf. Interf. 5, 8–14. https://doi.org/10.1016/j.surfin.2016.08.001
Rao, G. R., Mishra, B. G. (2003). Structural redox and catalytic chemistry of ceria based materials. Bull. Catal. Soc. India, 2, 122–134.
Luo, J., Meng, M., Qian, Y., Zha, Y. (2006). Mesoporous Mixed Oxide La–Co–Ce–O Catalysts Prepared by Citric Acid Complexation–Organic Template Decomposition Method. Chin. J. Catal., 27(6): 471–473. https://doi.org/10.1016/S1872-2067(06)60027-2
Potemkin, D. I., Snytnikov, P. V., Pakharukova, V. P., Semin, G. I., Moroz, E. M., Sobyanin, V. A. (2010). Cooper–Cerium Oxide Catalyst Prepared by the Pechini Method for CO Removal from Hydrogen-Containing Mixtures. Kinet. Catal., 51(1), 119–125. https://doi.org/10.1134/S0023158410010192
Liu, Z., Zhou, R., Zheng, X. (2007). Comparative study of different methods of preparing CuO–CeO2 catalyst for preferential oxidation of CO in excess hydrogen. J. Molec. Catal. A: Chem., 267, 137–142. https://doi.org/10.1016/j.molcata.2006.11.036
Marban, G., Fuertes, A. B. (2005). Highly active and selective CuOx/CeO2 catalyst prepared by a single-step citrate method for preferential oxidation of carbon monoxide. Appl. Catal. B: Environ., 57, 43–53. https://doi.org/10.1016/j.apcatb.2004.10.011
Avgouropoulos, G., Ioannides, T. (2006). Effect of synthesis parameters on catalytic properties of CuO–CeO2. Appl. Catal. B: Environ., 67, 1–11. https://doi.org/10.1016/j.apcatb.2006.04.005
Joint Committee on Powder Diffraction Standards. The International Centre for Diffraction Data. PCPDFWIN Software (2003).
Li, J., Lu, G., Wu, G., Mao, D., Wang, Y., Guo, Y. (2012). Promotional role of ceria on cobaltosic oxide catalyst for low–temperature CO oxidation. Catal. Sci. Technol., 2, 1865–1871. https://doi.org/10.1039/c2cy20118f
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