Effect of support on the catalytic activity of Co3O4-Cs deposited on open-cell ceramic foams for N2O decomposition
Source abstract
Abstract
Abstract Cobalt mixed oxide with cesium promoter was deposited on different ceramic open-cell foams (Al2O3 + SiO2, ZrO2 and SiO2 + Al2O3 + C-graphite, Lanik Ltd., Czech Republic) by wet impregnation method. The catalysts were tested for N2O decomposition and characterized by AAS, XRD, TPR-H2, FTIR, Raman, XPS, SEM and nitrogen adsorption. The same impregnation procedure resulted in different amounts of deposited Co3O4-Cs on each support and different dispersion of Co3O4 and Cs on the surface. The Al2O3+SiO2 (Al-Si) based ceramic foam was recognized as the most suitable support. The difference in the catalytic activity of unsupported Co3O4-Cs and Co-Cs/Al-Si could be explained in terms of different dispersion levels of individual components on the support, leading to changes in the Cs/Co surface molar ratio of atoms in close contact and subsequent changes in reducibility. Direct correlation of specific rate constant for N2O decomposition and surface Cs/Co molar ratio was found.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (53)
Show source-provided references
1. Recent Advances on Nitrous Oxide (N2O) Decomposition over Non-Noble-Metal Oxide Catalysts: Catalytic Performance, Mechanistic Considerations, and Surface Chemistry Aspects10.1021/acscatal.5b01605 ↗
2. Thermodynamic Stability, Redox Properties, and Reactivity of Mn3O4, Fe3O4, and Co3O4 Model Catalysts for N2O Decomposition: Resolving the Origins of Steady Turnover10.1021/acscatal.5b02642 ↗
3. Effect of precursor synthesis on catalytic activity of Co3O4 in N2O decomposition10.1016/j.cattod.2015.03.030 ↗
4. Mg and Al substituted cobalt spinels as catalysts for low temperature deN2O—Evidence for octahedral cobalt active sites10.1016/j.apcatb.2013.05.027 ↗
5. Potassium Promotion of Cobalt Spinel Catalyst for N2O Decomposition—Accounted by Work Function Measurements and DFT Modelling10.1007/s10562-008-9655-6 ↗
6. Cobalt–zinc spinel dispersed over cordierite monoliths for catalytic N2O abatement from nitric acid plants10.1016/j.cattod.2015.02.022 ↗
7. Cobalt mixed oxides deposited on the SiC open-cell foams for nitrous oxide decomposition10.1016/j.apcatb.2019.117745 ↗
8. Alkali metals as promoters in Co–Mn–Al mixed oxide for N2O decomposition10.1016/j.apcata.2013.05.011 ↗
9. Strong electronic promotion of Co3O4 towards N2O decomposition by surface alkali dopants10.1016/j.catcom.2008.12.057 ↗
10. Insights into the twofold role of Cs doping on deN2O activity of cobalt spinel catalyst—towards rational optimization of the precursor and loading10.1016/j.apcatb.2015.01.005 ↗
11. Optimization of cesium and potassium promoter loading in alkali-doped Zn0.4Co2.6O4|Al2O3 catalysts for N2O abatement, Reaction Kinetics
12. Studies on cesium doped cobalt oxide catalysts for direct N2O decomposition in the presence of oxygen and steam10.1016/j.catcom.2008.06.006 ↗
13. Must the Best Laboratory Prepared Catalyst Also Be the Best in an Operational Application?10.3390/catal9020160 ↗
14. On the selection of the best polymorph of Al2O3 carriers for supported cobalt nano-spinel catalysts for N2O abatement: an interplay between preferable surface spreading and damaging active phase–support interaction10.1039/C7CY01575E ↗
15. Effect of CeO2 promotion on the catalytic performance of Co/ZrO2 catalysts for Fischer–Tropsch synthesis10.1016/j.fuel.2016.06.125 ↗
16. The performance of Co/ZrO2–Al2O3 composite oxide catalyst for CH4/CO2 reforming reaction10.1016/j.ijhydene.2015.06.076 ↗
17. Modified Co3O4/ZrO2 catalysts for VOC emissions abatement10.1016/j.cattod.2006.08.025 ↗
18. Catalytic performance of Co3O4/CeO2 and Co3O4/CeO2–ZrO2 composite oxides for methane combustion: Influence of catalyst pretreatment temperature and oxygen concentration in the reaction mixture10.1016/j.apcatb.2005.12.023 ↗
19. Co/ZrO2, Co/CeO2 and MnCoCe structured catalysts for COPrOx10.1016/j.cattod.2013.05.010 ↗
20. Enhancing the deN2O activity of the supported Co3O4|α-Al2O3 catalyst by glycerol-assisted shape engineering of the active phase at the nanoscale10.1016/j.apcatb.2016.08.034 ↗
21. Influence of preparation method on dispersion of cobalt spinel over alumina extrudates and the catalyst deN2O activity10.1016/j.apcatb.2017.03.053 ↗
22. Cobalt Oxide Catalysts on Commercial Supports for N2O Decomposition10.1002/ceat.201600628 ↗
23. A study on N2O catalytic decomposition over Co/MgO catalysts10.1016/j.jhazmat.2008.07.104 ↗
24. Active Surface of γ-Al2O3-Supported Co3O410.1006/jcat.1994.1044 ↗
25. Supported Co–Mn–Al mixed oxides as catalysts for N2O decomposition10.1016/j.crci.2015.04.003 ↗
26. A comparative study of TiO2-supported and bulk Co–Mn–Al catalysts for N2O decomposition10.1016/j.cattod.2012.03.046 ↗
27. Cobalt Oxides Supported Over Ceria–Zirconia Coated Cordierite Monoliths as Catalysts for Deep Oxidation of Ethanol and N2O Decomposition10.1007/s10562-017-2047-z ↗
28. Structured catalysts for non-adiabatic applications10.1016/j.coche.2014.04.003 ↗
29. Preparation and properties of ceramic foam catalyst supports10.1016/S0167-2991(06)81771-4 ↗
30. Ceramic foam in catalytic combustion of methane10.1135/cccc19950473 ↗
31. Schlegel · 1994 · 1019
32. N2O catalytic decomposition on electrodeposited Rh-based open-cell metallic foams10.1016/j.cej.2019.122259 ↗
33. Methods for Preparation of Catalytic Materials10.1021/cr00035a002 ↗
34. On the stability of alkali metal promoters in Co mixed oxides during direct NO catalytic decomposition10.1016/j.molcata.2016.11.038 ↗
35. Systematics of the spinel structure type10.1007/BF00307535 ↗
36. Catalytic combustion of 1,2-dichlorobenzene at low temperature over Mn-modified Co3O4 catalysts10.1016/j.apcatb.2014.10.047 ↗
37. Karr · 2013
38. Thin cobalt oxide films for catalysis deposited by plasma-enhanced metal–organic chemical vapor deposition10.1016/j.tsf.2006.11.056 ↗
39. Size-Dependent Activity of Co3O4 Nanoparticle Anodes for Alkaline Water Electrolysis10.1021/jp904022e ↗
40. Synthesis and electrochemical properties of Co3O4 nanoparticles by hydrothermal method at different temperatures10.1088/1757-899X/207/1/012020 ↗
41. Catalytic CO Oxidation over Well-Defined Cobalt Oxide Nanoparticles: Size-Reactivity Correlation10.1021/acscatal.5b01452 ↗
42. Co3O4-pillared montmorillonite catalysts synthesized by hydrogel-assisted route for total oxidation of toluene10.1016/j.apcatb.2016.05.008 ↗
43. Alkali-metal poisoning effect of total CO and propane oxidation over Co3O4 nanocatalysts10.1016/j.apcatb.2019.117859 ↗
44. Strong dispersion effect of cobalt spinel active phase spread over ceria for catalytic N2O decomposition: The role of the interface periphery10.1016/j.apcatb.2015.07.027 ↗
45. Reduction study of Co3O4 model catalyst by electron microscopy10.1023/A:1009022202448 ↗
46. Potassium-doped Co3O4 catalyst for direct decomposition of N2O10.1016/j.apcatb.2007.09.016 ↗
47. Cobalt-based catalysts supported on titania and zirconia for the oxidation of nitric oxide to nitrogen dioxide10.1016/j.jcat.2007.02.020 ↗
48. Catalytic decomposition of nitrous oxide over catalysts prepared from Co/Mg-Mn/Al hydrotalcite-like compounds10.1016/j.apcatb.2005.04.002 ↗
49. Impact of cobalt-based catalyst characteristics on the performance of conventional gas-phase and supercritical-phase Fischer–Tropsch synthesis10.1016/j.apcata.2005.02.023 ↗
50. Guidelines for optimization of catalytic activity of 3d transition metal oxide catalysts in N2O decomposition by potassium promotion10.1016/j.cattod.2010.11.043 ↗
51. Effect of promoters in Co–Mn–Al mixed oxide catalyst on N2O decomposition10.1016/j.cej.2010.03.058 ↗
52. Heterogeneous catalytic decomposition of nitrous oxide10.1016/0926-3373(96)90072-7 ↗
53. CO-PROX Reaction over Co3O4|Al2O3 Catalysts—Impact of the Spinel Active Phase Faceting on the Catalytic Performance10.1021/acs.jpcc.9b03025 ↗