Catalytic combustion of CH4 and CO on La1−xMxMnO3 perovskites

Song, Kwang-Sup; Cui, Hao; Kim, Sang Don; Kang, Sung-Kyu

doi:10.1016/s0920-5861(98)00295-8

Cited by 101 publications

(46 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Perovskite catalysts ABO 3 A=La, Sr, Ce, Nd, Sm, and B=Co, Mn, Cr, Fe, Ni show high activity for CO and hydrocarbons oxidation and high thermal resistance . The activity of the perovskite in oxidation processes can be enhanced by partial substitution of the metal in position A and/or position B with metal cations differing in their valence number.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Oxidation of Carbon Monoxide on Pd-Containing LaMnO3 Perovskites

Kucharczyk

2015

Catal Lett

View full text Add to dashboard Cite

The substitution of 0.05 mol La with Pd enhances the activity of the LaMnO 3 in CO oxidation. La 0.9 Pd 0.1 MnO 3 and La 0.85 Pd 0.15 MnO 3 catalysts exhibit a very high activity, which depends on the conditions of perovskite preparation. Monolithic catalysts display a higher activity during CO oxidation when based on La 1-x Pd x MnO 3 than LaMn 1-x Pd x O 3 perovskites. The activity of the catalysts is determined by the concentration of palladium on the catalyst surface, which increases as the precursor calcination temperature is raised from 650 to 800°C. The size of the specific surface area of the perovskites has smaller influence on the activity of the catalysts. Graphical Abstract

show abstract

Section: Introductionmentioning

confidence: 99%

Catalytic Oxidation of Carbon Monoxide on Pd-Containing LaMnO3 Perovskites

Kucharczyk

2015

Catal Lett

View full text Add to dashboard Cite

show abstract

“…Among different candidate materials, perovskite-type oxides have been reported as active catalysts in the oxidation of CO, hydrocarbons and chlorinated hydrocarbons, as well as in automotive exhaust catalysis [17][18][19][20]. As compared to noble metals, perovskite-based catalysts pair a comparable activity to a high resistance to deactivation by hydrothermal sintering, and low cost [21].…”

Section: Introductionmentioning

confidence: 99%

Dielectric heating effects on the activity and SO2 resistance of La0.8Ce0.2MnO3 perovskite for methane oxidation

Zhang-Steenwinkel

Castricum

Beckers

et al. 2004

Journal of Catalysis

View full text Add to dashboard Cite

Dielectric heating effects on the activity and SO2 resistance of La0.8Ce0.2MnO3 perovskite for methane oxidation Zhang, Y.; Castricum, H.L.; Beckers, J.; Eiser, E.; Bliek, A. General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. under dielectric and conventional heating conditions. As these materials are both microwave sensitive and catalytically active, they may be applied as coating material for ceramic soot filters for the reduction of soot emission from Diesel engines. Dielectric heating is shown to result in a much higher CH 4 conversion and a higher resistance to SO 2 poisoning. We propose that local hot spots on the catalytic surface explain the increased activity toward CH 4 conversion. The catalytic activity in SO 2 is largely maintained, as pore blockage by sulphates, as experienced in conventional heating, is counteracted.

show abstract

“…As expected, methane conversion increases with temperature with a sigmoidal profile. Indeed, depending the fixed temperature, different reaction pathway may controls the overall methane catalytic combustion [9,[28][29][30][31]. At low temperature, the combustion is controlled by the surface oxygen vacancies that are activate sites for oxygen adsorption.…”

Section: -6mentioning

confidence: 99%

Catalytic combustion of methane by perovskite-type oxide nanoparticles as pollution prevention strategy

Zaza¹,

Luisetto²,

Serra³

et al. 2016

AIP Conference Proceedings

View full text Add to dashboard Cite

Catalysis science offers to combustion technology significant opportunity to increase the fuel efficiency by lowering the internal temperature gradients and reduce the environmental impact by lowering local peak temperature and, consequently, thermodynamically inhibiting the nitrogen oxides formation. Alternative catalytic materials are transition metals oxide, including complex oxides with perovskite crystalline structure. The aim of this work is to synthetize lanthanum ferrite perovskites with lanthanum ions partially substituted by strontium ions in order to study the substitution effects on structural properties and redox activity of the original oxide. Lanthanum ferrite oxides partially substituted with different Strontium amount were synthesized by solution combustion method. The perovskite nanopowders obtained were characterized by XRD, SEM, TPR analyses for defining crystalline structure, morphology and redox properties. Finally, the catalytic activity for methane combustion was tested. The most performing catalysts was La0:6Sr0:4FeO3 having the highest oxygen vacancy concentration as revealed byTPR analysis

show abstract

Catalytic combustion of CH4 and CO on La1−xMxMnO3 perovskites

Cited by 101 publications

References 14 publications

Catalytic Oxidation of Carbon Monoxide on Pd-Containing LaMnO3 Perovskites

Catalytic Oxidation of Carbon Monoxide on Pd-Containing LaMnO3 Perovskites

Dielectric heating effects on the activity and SO2 resistance of La0.8Ce0.2MnO3 perovskite for methane oxidation

Catalytic combustion of methane by perovskite-type oxide nanoparticles as pollution prevention strategy

Contact Info

Product

Resources

About