Characterization and optimization of Ce0.6Zr0.4−x Mn x O2 (x ≤ 0.4)
Source abstract
Abstract
The need of high-oxygen storage material for the potential use of three-way catalyst (TWC) has increased over the years. Ceria and ceria-based materials were found to be utilized in TWC application due to their redox property, which was observed to be decreased due to its structural instability at high temperature. The objective of the present work is to increase the oxygen storage capacity (OSC) of the ceria by incorporating Zr4+ and Mn4+ into its lattice. A solid solution of nanostructured Ce0.6Zr0.4−x Mn x O2 (0.0 ≤ x ≤ 0.4) (CZM) was synthesized using a sol–gel technique and the concentration of Zr4+ and Mn4+ was optimized based on its higher OSC. The formation of homogeneous CZM solid solutions was confirmed through XRD analysis, where the crystal size was observed to be varied from 2.7 to 3.8 nm. The OSC band of the samples and the lattice defects were confirmed using Raman spectroscopic studies. The OSC of the samples was computed using thermogravimetric analysis by cyclic heating process and it was found to be varied from 0.0722 to 0.1799 µmol/gram of CeO2. Ce0.6Zr0.2Mn0.2O2 solid solution (CZM2) was found to have the highest OSC among all the compositions studied and the same was confirmed by thermomechanical analysis. The magnetic characteristics of CZM were also confirmed. It is concluded that CZM2 can be considered as a potential catalyst because of its high OSC and structural stability.
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Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Electrocatalysts for Energy Conversion
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References (34)
Show source-provided references
1. Alifanti M, Baps B, Blangenois N, Naud J, Grange P, Delmon B (2003) Characterization of CeO2–ZrO2 mixed oxides. Comparison of the citrate and sol–gel preparation methods. Chem Mater 15:395–40310.1021/cm021274j ↗
2. Atkinson A, Ramos TMGM (2000) Chemically induced stress in ceramic oxygen ion-conducting membranes. Solid State Ionics 129:259–26910.1016/S0167-2738(99)00331-8 ↗
3. Bao H, Chen X, Fang J, Jiang Z, Huang W (2008) Structure-activity Relation of Fe2O3–CeO2 composite catalysts in CO oxidation. Catal Lett 125:160–16710.1007/s10562-008-9540-3 ↗
4. Cao CY, Cui ZM, Chen CQ, Song WG, Cai W (2010) Ceria hollow nanospheres produced by a template-free microwave-assisted hydrothermal method for heavy metal ion removal and catalysis. J Phys Chem C 114:9865–987010.1021/jp101553x ↗
5. Damyanova S, Perez CA, Schmal M, Bueno JMC (2002) Characterization of ceria-coated alumina carrier. Appl Catal A 234:271–28210.1016/S0926-860X(02)00233-8 ↗
6. Deshpande AS, Pinna N, Beato P, Antonietti M, Niederberger M (2004) Synthesis and characterization of stable and crystalline Ce1−xZrxO2 nanoparticle sols. Chem Mater 16:2599–260410.1021/cm040155w ↗
7. Evans JSO, Mary TA, Sleight AW (1998) Negative thermal expansion materials. Phys B 241–243:311–316
8. Godinho MJ, Gonçalves RF, Santos LPS, Varela JA, Longo E, Leite ER (2007) Room temperature co-precipitation of nanocrystalline CeO2 and Ce0.8Gd0.2O1.9−δ powder. Mater Lett 61:1904–190710.1016/j.matlet.2006.07.152 ↗
9. Govindaraj R, Sundar CS, Arora AK (2007) Atomic scale study of negative thermal expansion in zirconium tungsten. Phys Rev B 76(012104):1–4
10. Guo J, Wu D, Zhang L, Gong M, Zhao M, Chen Y (2008) Preparation of nanometric CeO2–ZrO2–Nd2O3 solid solution and its catalytic performances. J Alloy Compd 460:485–49010.1016/j.jallcom.2007.05.088 ↗
11. He H, Dai HX, Au CT (2004) Defective structure, oxygen mobility, oxygen storage capacity, and redox properties of RE-based (RE = Ce, Pr) solid solutions. Catal Today 90:245–25410.1016/j.cattod.2004.04.033 ↗
12. Hirano T (1986) Dehydrogenation of ethylbenzene over potassium- promoted iron oxide containing cerium and molybdenum oxides. Appl Catal 28:119–13210.1016/S0166-9834(00)82497-5 ↗
13. Hongmei L, Qingchao Z, Yile L, Maochu G, Yongdong C, Jianli W, Yaoqiang C (2010) Effects of ceria/zirconia ratio on properties of mixed CeO2–ZrO2–Al2O3 compound. J Rare Earths 28(1):79–8310.1016/S1002-0721(09)60055-7 ↗
14. Hori CE, Permana H, Ng KYS, Brenner A, More K, Rahmoeller KM, Belton D (1998) Thermal stability of oxygen storage properties in a mixed CeO2–ZrO2 system. Appl Catal B 16:105–11710.1016/S0926-3373(97)00060-X ↗
15. Hu C, Zhu Q, Jiang Z (2009) Nanosized CuO–Zr x Ce1−x O y aerogel catalysts prepared by ethanol supercritical drying for catalytic deep oxidation of benzene. Powder Technol 194:109–11410.1016/j.powtec.2009.03.035 ↗
16. Jia L, Shen M, Hao J, Rao T, Wang J (2008) Dynamic oxygen storage and release over Mn0.1Ce0.9O x and Mn0.1Ce0.6Zr0.3O x complex compounds and structural characterization. J Alloy Compd 454:321–32610.1016/j.jallcom.2006.12.040 ↗
17. Kaspar J, Fornasiero P, Hickey N (2003) Automotive catalytic converters: current status and some perspectives. Catal Today 77:419–44910.1016/S0920-5861(02)00384-X ↗
18. Mamontov E, Egami T, Brezny R, Koranne M, Tyagi S (2000) Lattice defects and oxygen storage capacity of nanocrystalline ceria and ceria–zirconia. J Phys Chem B 104:11110–1111610.1021/jp0023011 ↗
19. Ming Z, Yanling Y, Hairong W, Zhimin L, Maochu G, Yaoqiang C (2010) Preparation and investigation of Ce0.4Zr0.5−x Y0.1Mn x O2 oxygen-storage materials. J Rare Earths 28:260–26410.1016/S1002-0721(09)60092-2 ↗
20. Nagai Y, Hirabayashi T, Dohmae K, Takagi N, Minami T, Shinjoh H, Matsumoto S (2006) Sintering inhibition mechanism of platinum supported on ceria-based oxide and Pt-oxide–support interaction. J Catal 242:103–10910.1016/j.jcat.2006.06.002 ↗
21. Narula CK, Haack LP, Chun W, Jen HW, Graham W (1999) Single-phase PrO y –ZrO2 materials and their oxygen storage capacity: a comparison with single-phase CeO2–ZrO2, PrO y –CeO2, and PrO y –CeO2–ZrO2 Materials. J Phys Chem B 103:3634–363910.1021/jp984383n ↗
22. Ozawa M, Matuda K, Suzuki S (2000) Microstructure and oxygen release properties of catalytic alumina-supported CeO2–ZrO2 powders. J Alloy Compd 303–304:56–5910.1016/S0925-8388(00)00605-8 ↗
23. Peng CT, Lia HK, Liaw BJ, Chen YZ (2011) Removal of CO in excess hydrogen over CuO/Ce1−x Mn x O2 catalysts. Chem Eng J 172:452–45810.1016/j.cej.2011.06.012 ↗
24. Ping F, Jiqing L, Xiaoyan X, Mengfei L (2008) Catalytic combustion study of soot on Ce0.7Zr0.3O2 solid solution. J Rare Earths 26:250–25310.1016/S1002-0721(08)60075-7 ↗
25. Prasad DH, Lee JH, Lee HW, Kim BK, Park JS (2009) Chemical synthesis and characterization of Ce x Zr1−x O2 powders by a modified sol gel method. J Ceram Process Res 10(6):748–752
26. Reddy BM, Khan A (2005) Nanosized CeO2–SiO2, CeO2–TiO2, and CeO2–ZrO2 mixed oxides: influence of supporting oxide on thermal stability and oxygen storage properties of ceria. Catal Surv Asia 9(3):155–17110.1007/s10563-005-7552-1 ↗
27. Reed ML, Masry NAE, Stadelmaier HH, Ritums MK, Reed MJ, Parker CA, Roberts JC, Bedair SM (2001) Room temperature ferromagnetic properties of (Ga, Mn)N. Appl Phys Lett 79:3473–347510.1063/1.1419231 ↗
28. Rohart E, Larcher O, Deutsch S, Hedouin C, Aımin H, Fajardie F, Allain M, Macaudiere P (2004) From Zr-rich to Ce-rich: thermal stability of OSC materials on the whole range of composition. Topics Catal 30/31(1–4):417–42310.1023/B:TOCA.0000029784.75813.81 ↗
29. Schubert D, Dargusch R, Raitano J, Chan SW (2006) Cerium and Yttrium oxide nanoparticles are neuroprotective. Biochem Biophys Res Commun 342:86–9110.1016/j.bbrc.2006.01.129 ↗
30. Terribile D, Trovarelli A, Leitenburg CD, Primavera A, Dolcetti G (1999) Catalytic combustion of hydrocarbons with Mn and Cu-doped ceria–zirconia solid solutions. Catal Today 47:133–14010.1016/S0920-5861(98)00292-2 ↗
31. Trovarelli A, Boaro M, Rocchini E, Leitenburg CD, Dolcetti G (2001) Some recent developments in the characterization of ceria-based catalysts. J Alloy Compd 323–324:584–59110.1016/S0925-8388(01)01181-1 ↗
32. Wang X, Rodriguez JA, Hanson JC, Gamarra D, Arias AM, Garcıa MF (2006) In situ studies of the active sites for the water gas shift reaction over Cu–CeO2 catalysts: complex interaction between metallic copper and oxygen vacancies of ceria. J Phys Chem B 110:428–43410.1021/jp055467g ↗
33. Zhang Z, Zhang Y, Mu Z, Yu P, Ni X, Wang S, Zheng L (2007) Synthesis and catalytic properties of Ce0.6Zr0.4O2 solid solutions in the oxidation of soluble organic fraction from diesel engines. Appl Catal B 76:335–34710.1016/j.apcatb.2007.06.011 ↗
34. Zhang X, Long E, Li Y, Guo J, Zhang L, Gong M, Wang M, Chen Y (2009) CeO2–ZrO2–La2O3–Al2O3 composite oxide and its supported palladium catalyst for the treatment of exhaust of natural gas engined vehicles. J Nat Gas Chem 18:139–14410.1016/S1003-9953(08)60092-4 ↗