Freeze-dried Co 3 O 4 –CeO 2 catalysts for the preferential oxidation of CO with the presence of CO 2 and H 2 O in the feed
Source abstract
Abstract
Abstract A synthesis method in two steps was used to obtain Co 3 O 4 –CeO 2 (COCE) catalysts. Firstly, freeze-drying precursors to obtain a submicrometric ceria powders support were calcined at a temperature as low as 400 °C. Then, the support was impregnated with a Co(II) acetate solution by incipient wetness impregnation, varying the loading of Co between 5 and 20 wt%, and calcined again at 400 °C. x COCE samples were tested for the preferential oxidation of CO in a H 2 -rich stream (CO-PROX). All samples showed catalytic activity and high selectivity towards CO 2 at low reaction temperatures, being 15COCE the most active catalyst. Moreover, simulating a CO-PROX unit operation, the influence of the presence of CO 2 and H 2 O in the feed was tested, showing a high activity and selectivity mainly to CO 2 .
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Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Catalysts for Methane Reforming
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (57)
Show source-provided references
1. CO-free processing for fuel cell applications10.1016/S0920-5861(02)00233-X ↗
2. Micro-fuel cell power sources10.1002/er.1281 ↗
3. Low-temperature oxidation of CO over Pd/CeO2–TiO2 catalysts with different pretreatments10.1016/j.jcat.2005.04.033 ↗
4. Preferential CO oxidation in hydrogen (PROX) on ceria-supported catalysts, Part II: oxidation states and surface specieson Pd/CeO2 under reaction conditions, suggested reaction mechanism10.1016/j.jcat.2005.10.015 ↗
5. Promoting mechanism of potassium in preferential CO oxidation on Pt/Al2O310.1016/j.jcat.2007.09.001 ↗
6. MnOx/Pt/Al2O3 catalysts for CO oxidation in H2-rich streams10.1016/j.apcatb.2006.01.028 ↗
7. Selectivity loss of Pt/CeO2 PROX catalysts at low CO concentrations: mechanism and active site study10.1016/j.jcat.2010.04.017 ↗
8. Variation of redox activity and synergistic effect for improving the preferential oxidation of CO in H2-rich gases in porous Pt/CeO2–Co3O4 catalysts10.1039/C5CY00974J ↗
9. Selective CO oxidation in H2-rich gas over K2CO3-promoted Rh/SiO2 catalysts: effects of preparation method10.1016/j.apcata.2004.06.047 ↗
10. Catalytic performance of rhodium-based catalysts for CO preferential oxidation in H2-rich gases10.1021/ie0713588 ↗
11. Activity, stability, and deactivation behavior of supported Au/TiO2 catalysts in the CO oxidation and preferential CO oxidation reaction at elevated temperatures10.1016/j.jcat.2009.07.018 ↗
12. Role of water in the CO oxidation reaction on Au/CeO2: modification of the surface properties10.1016/j.apcatb.2008.03.010 ↗
13. Influence of textural parameters on the catalytic behavior for CO oxidation over ordered mesoporous Co3O410.1016/j.apcatb.2010.04.016 ↗
14. Catalytic performance of Ru nanoparticles supported on different mesoporous silicas for preferential oxidation of CO in H2-rich10.1016/j.apcata.2012.09.044 ↗
15. Kinetic study of selective CO oxidation in H2-rich gas on a Ru/γAl2O3 catalyst10.1039/b103780n ↗
16. Preferential oxidation of CO in rich H2 over CuO/CeO2: details of selectivity and deactivation under the reactan stream10.1016/j.apcatb.2006.02.003 ↗
17. Effect of thermal treatments on the catalytic behaviour in the CO preferential oxidation of a CuO–CeO2–ZrO2 catalyst with a flower-like morphology10.1016/j.apcatb.2011.01.004 ↗
18. Selective CO oxidation in excess H2 over copper-ceria catalysts: identification of active entities/species10.1021/ja073926g ↗
19. Effect of copper loading on copper-ceria catalysts performance in CO selective oxidation for fuel cell applications10.1016/j.ijhydene.2009.11.098 ↗
20. Comparative study of CuO supported on CeO2, Ce0.8Zr0.2O2, and Ce0.8Al0.2O2 based catalysts in the CO-PROX reaction10.1016/j.ijhydene.2013.04.062 ↗
21. Preferential CO oxidation (CO-PROX) catalyzed by CuO supported on nanocrystalline CeO2 prepared by a freezing-drying method10.1016/j.apcata.2014.02.033 ↗
22. Effect of synthesis parameters on catalytic properties of CuO–CeO210.1016/j.apcatb.2006.04.005 ↗
23. The utilization of ceria in industrial catalysis10.1016/S0920-5861(98)00515-X ↗
24. Catalytic carbon monoxide oxidation over CoOx/CeO2 composite catalysts10.1016/S0926-860X(03)00324-7 ↗
25. CoO(111) surface study by surface X-ray diffraction10.1016/S0169-4332(00)00170-7 ↗
26. Pretreatments of Co3O4 at moderate temperature for CO oxidation at −80°C10.1016/j.jcat.2009.08.003 ↗
27. Mesoporous CeO2-supported Co3O4 catalysts for CO preferential oxidation in H2-rich gases10.1016/S1872-2067(07)60082-5 ↗
28. Preferential oxidation of CO in H2 over Co3O4–CeO2 catalysts10.1007/s11144-007-4982-y ↗
29. Mesoporous Co3O4–CeO2 and Pd/Co3O4–CeO2 catalysts: Synthesis, characterization and mechanistic study of their catalytic properties for low-temperature CO oxidation10.1016/j.jcat.2008.01.007 ↗
30. Preferential oxidation of carbon monoxide on Co/CeO2 nanoparticles10.1016/j.apcatb.2010.03.015 ↗
31. CO preferential oxidation on cordierite monoliths coated with Co/CeO2 catalysts10.1016/j.ijhydene.2012.01.159 ↗
32. Supported Co3O4–CeO2 catalysts on modified activated carbon for CO preferential oxidation in H2-rich gases10.1016/j.apcatb.2012.02.018 ↗
33. Preferential oxidation of Co (PROX) over CoOx/CeO2 in hydrogen-rich streams: effect of cobalt loading10.1016/j.apcatb.2012.06.032 ↗
34. Synthesis of mesoporous Co–Ce oxides catalysts by glycine-nitrate combustion approach for CO preferential oxidation reaction in excess H210.1016/j.ijhydene.2014.01.024 ↗
35. Conductivity of CGO and CSO ceramics obtained from freeze-drying precursors10.1016/S0013-4686(03)00027-6 ↗
36. X-ray line broadening from filed aluminium and wolfram10.1016/0001-6160(53)90006-6 ↗
37. Ceria-based solid electrolytes10.1016/0167-2738(95)00229-4 ↗
38. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides10.1107/S0567739476001551 ↗
39. Densification and properties of bulk nanocrystalline functional ceramics with grain size below 50nm10.1016/j.jeurceramsoc.2012.12.004 ↗
40. Investigation of the reduction/oxidation behavior of cobalt supported on nano-ceria10.1007/s11244-013-0235-7 ↗
41. Synthesis of sphere-like Co3O4 nanocrystals via a simple polyol route10.1016/j.matlet.2007.03.067 ↗
42. Steam reforming of ethanol over Co3O4/CeO2 catalysts prepared by different methods10.1016/j.cattod.2006.10.012 ↗
43. Sub-ambient CO oxidation over mesoporous Co3O4: effect of morphology on its reduction behavior and catalytic performance10.1016/j.apcata.2012.04.006 ↗
44. Co3O4/CeO2 composite oxides for methane emissions abatement: relationship between Co3O4–CeO2 interaction and catalytic activity10.1016/j.apcatb.2006.03.018 ↗
45. Catalytic properties and surface states of cobalt-containing oxidation catalysts10.1016/S0166-9834(00)81562-6 ↗
46. The highly active catalysts of nanometric CeO2-supported cobalt oxides for soot combustion10.1016/j.apcatb.2008.03.017 ↗
47. Cerium oxidation state in ceria nanoparticles studied with X-ray photoelectron spectroscopy and absorption near edge spectroscopy10.1016/j.susc.2004.05.138 ↗
48. Satellite structure in the X-ray photoelectron spectra of some binary and mixed oxides of lanthanum and cerium10.1039/dt9760001686 ↗
49. Detailled study on the role of oxygen vacancies in structural, magnetic and transport behavior of magnetic insulator: Co–CeO210.1088/0953-8984/21/48/486004 ↗
50. Electron energy loss spectroscopic investigation of Co metal, CoO, and Co3O4 before and after Ar+ bombardment10.1016/j.apsusc.2004.02.062 ↗
51. A DFT study on CO oxidation over Co3O410.1006/jcat.2002.3678 ↗
52. The oxidation of CO by O2 and by NO on supported chromium oxide and other metal oxide catalysts10.1016/0021-9517(68)90121-8 ↗
53. Oxidation carried out by means of vanadium oxide catalysts10.1016/S0009-2509(54)80005-4 ↗
54. Low-temperature CO oxidation over Co3O4/Al2O310.1006/jcat.2000.2924 ↗
55. Cobalt oxide surfame chemistry: the interaction of CoO (100), Co3O4 (110) and Co3O4 (111) with oxygen and water10.1016/j.molcata.2007.08.023 ↗
56. Mesoporous ceria-zirconia supported cobalt oxide catalysts for CO preferential oxidation reaction in excess H210.1016/j.apcatb.2011.08.038 ↗
57. In situ FT-IR spectroscopy studies on the mechanism of the catalytic oxidation of carbon monoxide over supported cobalt catalysts10.1007/s10562-005-9728-8 ↗