Abstract
A famous hard-template method (HT), coprecipitation method (PC), and complex method (CA) were used to prepare CeCu composite oxide catalysts. The prepared catalysts were characterized via XRD, BET, Raman, XPS, FI–IR, and O2–TPD, and their catalytic activity and stability were evaluated for the propyl acetate catalytic combustion. The results showed that the CeCu oxide solid solution and oxygen vacancies were formed in the prepared CeCu oxide catalysts, even for CeCu–PC and CeCu–CA having a specific amount of isolated crystalline or amorphous CuO species. Comparing with the CeCu–PC and CeCu–CA of low porosity, CeCu–HT developed a mesoporous structure with a much larger specific surface area through a negative replica on the structure of KIT-6, and in it, CuO was completely dissolved in the CeO2 lattice to form more CeCu oxide solid solution and a large amount of oxygen vacancies. As a result, the CeCu–HT catalyst has more surface-adsorbed oxygen species, more –OH group which can also change into surface-adsorbed oxygen species at relatively high temperatures, higher oxygen desorption ability, and higher oxygen mobility than CeCu–PC and CeCu–CA. The CeCu–HT catalyst shows high and stable propyl acetate catalytic combustion performance at 190 °C. The propyl acetate catalytic combustion activity on the prepared CeCu oxide catalysts can be ranked as: CeCu–HT > CeCu–PC > CeCu–CA, which follows the orders of CeCu oxide solid solution content, surface-active oxygen content, and oxygen desorption and mobility of the CeCu composite oxide catalysts.
Acknowledgements
The work was financially supported by Engineering Research Center for Waste Oil Recovery Technology and Equipment,Ministry of Education (Chongqing Technology and Business University) “New technology and new product development” (fykf201507); Science and Technology of Chongqing Municipal Education Commission funded research projects (KJ1400610).
References
1. Binet, C., Daturi, M., Lavalley, J.C., 1999. IR Study of Polycrystalline Ceria Properties in Oxidized and Reduced States. Catal. Today 50, 207–225.10.1016/S0920-5861(98)00504-5Search in Google Scholar
2. Dickinson, C., Zhou, W.Z., Hodgkins, R.P., Shi, Y.F., Zhao, D.Y., He, H.Y., 2006. Formation Mechanism of Porous Single–Crystal Cr2O3 and Co3O4 Templated by Mesoporous Silica. Chem. Mater. 18, 3088–3095.10.1021/cm060014pSearch in Google Scholar
3. Fu, M.L., Yue, X.H., Ye, D.Q., Ouyang, J.H., Huang, B.C., Wu, J.L., Liang, H., 2010. Soot Oxidation via CuO Doped CeO2 Catalysts Prepared Using Coprecipitation and Citrate Acid Complex–Combustion Synthesis. Catal. Today 153, 125–132.10.1016/j.cattod.2010.03.017Search in Google Scholar
4. He, C., Yu, Y.K., Chen, C.W., Yue, L., Qiao, N.L., Shen, Q., Chen, J.S., Hao, Z.P., 2013. Facile Preparation of 3D Ordered Mesoporous CuOx–CeO2 with Notably Enhanced Efficiency for the Low Temperature Oxidation of Heteroatom–Containing Volatile Organic Compounds. RSC Adv. 3, 19639–19656.10.1039/c3ra42566eSearch in Google Scholar
5. Jia, A.P., Hu, G.S., Meng, L., Xie, Y.L., Lu, J.Q., Luo, M.F., 2012. Cubic CO Oxidation Over CuO/Ce1–xCuxO2–δ and Ce1–xCuxO2–δ Catalysts: Synergetic Effects and Kinetic Study. J. Catal. 289, 199–209.10.1016/j.jcat.2012.02.010Search in Google Scholar
6. Kleitz, F., Choi, S.H., Ryoo, R., 2003. Ia3d Large Mesoporous Silica: Synthesis and Replication to Platinum Nanowires, Carbon Nanorods and Carbon Nanotubes. Chem. Commun. 17, 2136–2137.10.1039/b306504aSearch in Google Scholar
7. Li, X.B., Quek, X.Y., Michel Ligthart, D.A.J., Guo, M.L., Zhang, Y., Li, C., Yang, Q.H., Hensen, E.J.M., 2012. CO–PROX Reactions on Copper Cerium Oxide Catalysts Prepared by Melt Infiltration. Appl. Catal. B 123–124, 424–432.10.1016/j.apcatb.2012.05.009Search in Google Scholar
8. Li, X.S., Wang, J.L., Liao, C.W., Cao, H.Y., Chen, Y.Q., Gong, M.C., 2011. Catalytic Combustion of Ethyl Acetate Over CeMnOx and CeMnZrOx Compounds Synthesized by Coprecipitation Method. J. Nat. Gas. Chem. 20, 623–628.10.1016/S1003-9953(10)60249-6Search in Google Scholar
9. Liu, Y., Shao, M., Fu, L.L., Lu, S.H., Zeng, L.M., Tang, D.G., 2008. Source Profiles of Volatile Organic Compounds (VOCs) Measured in China: Part I. Atmos. Environ. 42, 6247–6260.10.1016/j.atmosenv.2008.01.070Search in Google Scholar
10. Nicolae, R., Elena, R., Paul, D.P., Corneliu, D., Maria, I., 2014. Characterization and Catalytic Properties of Some Perovskites. Composites Part B 60, 515–522.10.1016/j.compositesb.2014.01.006Search in Google Scholar
11. Shan, W.J., Feng, Z.C., Li, Z.L., Zhang, J., Shen, W.J., Li, C., 2004. Oxidative Steam Reforming of Methanol on Ce0.9Cu0.1OY Catalysts Prepared by Deposition–Precipitation, Coprecipitation, and Complexation–Combustion meThods. J. Catal. 228: 206–217.10.1016/j.jcat.2004.07.010Search in Google Scholar
12. Shrestha, K.M., Sorensen, C.M., Klabunde, K.J., 2010. Synthesis of CuO Nanorods, Reduction of CuO into Cu Nanorods, and Diffuse Reflectance Measurements of CuO and Cu Nanomaterials in the Near Infrared Region. J. Phys. Chem. C 114, 14368–14376.10.1021/jp103761hSearch in Google Scholar
13. Sing, K.S.W., Everett, D.H., Haul, R.A.W., Moscou, L., Rouquerol, R.A.P.J., 1985. Reporting Physisorption Data for Gas/Solid System with Special Reference to the Determination of Surface Area and Porosity. Pure Appl. Chem. 57, 603–619.10.1351/pac198254112201Search in Google Scholar
14. Spanier, J.E., Robinson, R.D., Zhang, F., Chan, S.W., Herman, I.P., 2001. Size–Dependent Properties of CeO2–y Nanoparticles as Studied by Raman Scattering. Phys. Rev. B 64: 245407.10.1103/PhysRevB.64.245407Search in Google Scholar
15. Tsoncheva, T., Linden, M., Areva, S., Minchev, C., 2006. Copper Oxide Modified Large Pore Ordered Mesoporous Silicas for Ethyl Acetate Combustion. Catal. Commun. 7, 357–361.10.1016/j.catcom.2005.12.001Search in Google Scholar
16. Wang, P.P., Li, C.H., Gong, H.Y., Wang, H.Q., Liu, J.R., 2011. Morphology Control and Growth Mechanism of Magnesium Hydroxide Nanoparticles via a Simple Wet Precipitation Method. Ceram. Intern. 37, 3365–3370.10.1016/j.ceramint.2011.05.138Search in Google Scholar
17. Yao, X.J., Gao, F., Yu, Q., Qi, L., Tang, C.J., Dong, L., Chen, Y., 2013. NO Reduction by CO over CuO–CeO2 Catalysts: Effect of Preparation Methods. Catal. Sci. Technol. 3, 1355–1366.10.1039/c3cy20805bSearch in Google Scholar
18. Zhang, R.D., Shi, D.J., Liu, N., Cao, Y., Chen, B.H., 2014. Mesoporous SBA–15 Promoted by 3D–Transition and Noble Metals for Catalytic Combustion of Acetonitrile. Appl. Catal. B 146, 79–93.10.1016/j.apcatb.2013.03.028Search in Google Scholar
19. Zhou, G.L., He, X.L., Liu, S., Xie, H.M., Fu M., 2015. Phenyl VOCs Catalytic Combustion on Supported CoMn/AC Oxide Catalyst. J. Ind. Eng. Chem. 21, 932–941.10.1016/j.jiec.2014.04.035Search in Google Scholar
20. Zhou, G.L., Lan, H., Gao, T.T., Xie, H.M., 2014. Influence of Ce/Cu Ratio on the Performance of Ordered mesoporous CeCu Composite Oxide Catalysts. Chem. Eng. J. 246, 53–63.10.1016/j.cej.2014.02.059Search in Google Scholar
21. Zhou, G.L., Lan, H., Song, R.Y., Xie, H.M., Du, Q.X., 2014. Effects of Preparation Method on CeCu Oxide Catalyst Performance. RSC Adv. 4, 50840–50850.10.1039/C4RA05431HSearch in Google Scholar
22. Zhou, G.L., Lan, H., Wang, H., Xie, H.M., Zhang, G.Z., Zheng, X.X., 2014. Catalytic Combustion of PVOCs on MnOx Catalysts. J. Mol. Catal. A 393, 279–288.10.1016/j.molcata.2014.06.028Search in Google Scholar
23. Zhou, G.L., Lan, H., Yang, X.Q., Du, Q.X., Xie, H.M., Fu, M., 2013. Effects of the Structure of Ce–Cu Catalysts on the Catalytic Combustion of Toluene in Air. Ceram. Int. 39, 3677–3683.10.1016/j.ceramint.2012.10.199Search in Google Scholar
©2016 by De Gruyter
Articles in the same Issue
- Frontmatter
- Editorial
- In Honour of Professor Serge Kaliaguine
- Research Articles
- Core/Shell Nanostructured Materials for Sustainable Processes
- Photodegradation Efficiencies in a Photo-CREC Water-II Reactor Using Several TiO2 Based Catalysts
- Hydrotreatment of Light Cycle Oil Over a Dispersed MoS2 Catalyst
- Hybrid Ionic Liquid-Chitosan Membranes for CO2 Separation: Mechanical and Thermal Behavior
- Photo-oxidation of Tributyltin, Dibutyltin and Monobutyltin in Water and Marine Sediments
- Contribution of Pd Membrane to Dehydrogenation of Isobutane Over a New Mesoporous Cr/MCM-41 Catalyst
- Self Diffusivity of n-Dodecane and Benzothiophene in ZSM-5 Zeolites. Its Significance for a New Catalytic Light Diesel Desulfurization Process
- Staggered Grid Finite Volume Approach for Modeling Single Particle Char Gasification
- High Efficiency CeCu Composite Oxide Catalysts Improved via Preparation Methods for Propyl Acetate Catalytic Combustion in Air
- Hydrodesulfurization of Dibenzothiophene in a Micro Trickle Bed Catalytic Reactor under Operating Conditions from Reactive Distillation
- Surface Modification of the ZnO Nanoparticles with γ-Aminopropyltriethoxysilane and Study of Their Photocatalytic Activity, Optical Properties and Antibacterial Activities
- One-Pot Isomerization of n-Alkanes by Super Acidic Solids: Sulfated Aluminum-Zirconium Binary Oxides
- Photocatalytic Decomposition of Metoprolol and Its Intermediate Organic Reaction Products: Kinetics and Degradation Pathway
Articles in the same Issue
- Frontmatter
- Editorial
- In Honour of Professor Serge Kaliaguine
- Research Articles
- Core/Shell Nanostructured Materials for Sustainable Processes
- Photodegradation Efficiencies in a Photo-CREC Water-II Reactor Using Several TiO2 Based Catalysts
- Hydrotreatment of Light Cycle Oil Over a Dispersed MoS2 Catalyst
- Hybrid Ionic Liquid-Chitosan Membranes for CO2 Separation: Mechanical and Thermal Behavior
- Photo-oxidation of Tributyltin, Dibutyltin and Monobutyltin in Water and Marine Sediments
- Contribution of Pd Membrane to Dehydrogenation of Isobutane Over a New Mesoporous Cr/MCM-41 Catalyst
- Self Diffusivity of n-Dodecane and Benzothiophene in ZSM-5 Zeolites. Its Significance for a New Catalytic Light Diesel Desulfurization Process
- Staggered Grid Finite Volume Approach for Modeling Single Particle Char Gasification
- High Efficiency CeCu Composite Oxide Catalysts Improved via Preparation Methods for Propyl Acetate Catalytic Combustion in Air
- Hydrodesulfurization of Dibenzothiophene in a Micro Trickle Bed Catalytic Reactor under Operating Conditions from Reactive Distillation
- Surface Modification of the ZnO Nanoparticles with γ-Aminopropyltriethoxysilane and Study of Their Photocatalytic Activity, Optical Properties and Antibacterial Activities
- One-Pot Isomerization of n-Alkanes by Super Acidic Solids: Sulfated Aluminum-Zirconium Binary Oxides
- Photocatalytic Decomposition of Metoprolol and Its Intermediate Organic Reaction Products: Kinetics and Degradation Pathway