Mesoporous La0.8Sr0.2CoO3/H-COK-12 catalyst synthesized by template method: Highly active for the complete oxidation of CO
Source abstract
Abstract
Using cheap sodium silicate as a silica source and surfactant P123 as a soft template, an environment-friendly mesoporous material, COK-12, was prepared in a near-neutral environment. COK-12 was modified with n-hexane to obtain an H-COK-12 template with a compact and ordered pore structure. In this study, the modified mesoporous material H-COK-12 was used as the template for the first time, and the mesoporous La0.8Sr0.2CoO3 (LSC) catalyst was prepared by nano-casting method combined with sol–gel method. The results showed that the LSC-650 catalyst synthesized at 650 °C for 2 h possessed a large specific surface area (103.46 m2/g) and the highest surface Co4+/Co3+ and Oads/Olat molar ratio. In addition, the CO conversion with the LSC-T (T = 550, 600, 650, 700 °C) samples indicated that the LSC-650 sample had the best catalytic activity (T50 = 145 °C, T90 = 149 °C) and stability.
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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.
Affiliations
Luoyang Ship Material Research Institute , Luoyang 471023,
References (38)
Show source-provided references
1. Benchmarking of manganese oxide materials with CO oxidation as catalysts for low temperature selective oxidation10.1016/j.apcatb.2016.11.043 ↗
2. Kinetics of catalytic oxidation of carbon monoxide over CuMnAgOx catalyst10.1016/j.md.2017.09.001 ↗
3. Characterization and activity of CuMnOx/γ-Al2O3 catalyst for oxidation of carbon monoxide10.1016/j.md.2017.08.001 ↗
4. Probing the transition state region in catalytic CO oxidation on Ru10.1126/science.1261747 ↗
5. One-pot polyol synthesis of Pt/CeO2 and Au/CeO2 nanopowders as catalysts for CO oxidation10.1166/jnn.2015.9861 ↗
6. Active gold-ceria and gold-ceria/titania catalysts for CO oxidation: From single-crystal model catalysts to powder catalysts10.1016/j.cattod.2014.06.033 ↗
7. Catalytic reduction of NO by CO over LaMn1−xFexO3 and La0.8A0.2Mn0.3Fe0.7O3 (A = Sr, Cs, Ba, Ce) perovskite catalysts10.1007/s10562-016-1860-0 ↗
8. Effect of textural structure on the catalytic performance of LaCoO3 for CO oxidation10.1002/cctc.201402064 ↗
9. Au/3DOM LaCoO3: High-performance catalysts for the oxidation of carbon monoxide and toluene10.1016/j.cej.2013.05.070 ↗
10. NO oxidation catalysis on copper doped hexagonal phase LaCoO3: A combined experimental and theoretical study10.1039/c3cp54963a ↗
11. Catalytic oxidation of benzene over LaCoO3 perovskite-type oxides prepared using microwave process10.1166/jnn.2015.8330 ↗
12. An in situ electrical conductivity study of LaCoFe perovskite-based catalysts in correlation with the total oxidation of methane10.1016/j.apcata.2014.07.025 ↗
13. Catalytic oxidation of ethyl acetate over La-Co and La-Cu oxides10.1016/j.jece.2014.01.003 ↗
14. Catalytic combustion of methane on nano-structured perovskite-type oxides fabricated by ultrasonic spray combustion10.1016/j.apcatb.2009.10.017 ↗
15. Preparation and electrochemical properties of urchin-like La0.8Sr0.2MnO3 perovskite oxide as a bifunctional catalyst for oxygen reduction and oxygen evolution reaction10.1016/j.jpowsour.2013.04.116 ↗
16. A facile method to promote LaMnO3 perovskite catalyst for combustion of methane10.1016/j.catcom.2017.04.022 ↗
17. Efficient catalytic removal of diesel soot over Mg substituted K/La0.8Ce0.2CoO3 perovskites with large surface areas10.1016/j.cej.2016.02.038 ↗
18. Structure and Reactivity of perovskite-type oxides10.1016/S0360-0564(08)60019-X ↗
19. Optical absorption spectrum of CoIII in LaCoO310.1002/pssb.2220670116 ↗
20. Morphologically controlled synthesis of porous spherical and cubic LaMnO3 with high activity for the catalytic removal of toluene10.1021/am500489x ↗
21. Partial oxidation of methane over Ni based catalyst derived from order mesoporous LaNiO3 perovskite prepared by modified nanocasting method10.1016/j.fuel.2016.12.033 ↗
22. A simple co-nanocasting method to synthesize high surface area mesoporous LaCoO3 oxides for CO and NO oxidations10.1016/j.micromeso.2013.03.033 ↗
23. In situ hydrothermally synthesized mesoporous LaCoO3/SBA-15 catalysts: High activity for the complete oxidation of toluene and ethyl acetate10.1016/j.apcata.2008.09.037 ↗
24. Synthesis and characterization of COK-12 ordered mesoporous silica at room temperature under buffered quasi neutral pH10.1016/s0167-2991(10)75135-1 ↗
25. High specific surface area ordered mesoporous silica COK-12 with tailored pore size10.1016/j.micromeso.2019.01.050 ↗
26. Oxidative coupling of methane on the Na2WO4-MnxOy catalyst: COK-12 as an inexpensive alternative to SBA-1510.1016/j.catcom.2016.06.025 ↗
27. Facile coprecipitation synthesis of La0.6Sr0.4MnO3 perovskites with high surface area10.1016/j.matlet.2017.09.048 ↗
28. LaMO3 (M=Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation10.1016/j.apcatb.2007.10.022 ↗
29. Structure, optical and magnetic properties of LaFeO3 nanoparticles prepared by polymerized complex method10.1007/s10971-014-3383-8 ↗
30. Polymerized complex synthesis and effect of Ti dopant on magnetic properties of LaFeO3 nanoparticles10.1166/jnn.2015.11407 ↗
31. Electrochemical properties and hydrogen storage mechanism of perovskite-type oxide LaFeO3 as a negative electrode for Ni/MH batteries10.1016/j.electacta.2009.09.078 ↗
32. Metal–support interaction in Co/SiO2 and Co/TiO210.1016/s0926-860x(99)00460-3 ↗
33. Surface passivation for highly active, selective, stable, and scalable CO2 electroreduction10.1038/s41467-023-40342-6 ↗
34. Ultrahigh stable methanol oxidation enabled by a high hydroxyl concentration on Pt clusters/MXene interfaces10.1021/jacs.2c03982 ↗
35. Synthesis and conductivity properties of Gd0.8Ca0.2BaCo2O5+δ double perovskite by sol–gel combustion10.1007/s10854-015-3670-3 ↗
36. Influence of element doping on La–Mn–Cu–O based perovskite precursors for methanol synthesis from CO2/H210.1039/c4ra07692c ↗
37. Effect of potassium-precursor promoters on catalytic oxidation activity of Mn-CoOx catalysts for NO removal10.1021/acs.iecr.5b02062 ↗
38. SO2 deactivation mechanism of NO oxidation and regeneration of the LaCoO3 perovskite10.1039/c9cy02478f ↗