Effects of B-site substitution on the surface adsorption properties and catalytic activities of La0.8Sr0.2(Mn1−xCox)O3

Ahn, Kook Young; Kim, Hyoungchul; Chung, Yong-Chae; Kim, Hae-Ryoung; Son, Ji‐Won; Lee, Hae-Weon; Lee, Jong-Ho

doi:10.1016/j.apcata.2010.08.024

Applied Catalysis A: General

2010

DOI: 10.1016/j.apcata.2010.08.024

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Effects of B-site substitution on the surface adsorption properties and catalytic activities of La0.8Sr0.2(Mn1−xCox)O3

Kook Young Ahn¹,

Hyoungchul Kim²,

Yong-Chae Chung³

et al.

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Cited by 9 publications

References 22 publications

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Synthesis, Characterization, and Catalytic Activity of Mn‐doped Perovskite Oxides for Three‐Way Catalysis

Zhou

Zhang

et al. 2015

Chem Eng & Technol

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Mn-doped La 0.8 Sr 0.2 CoO 3 perovskite oxides (La 0.8 Sr 0.2 Co 1-x Mn x O 3 ; x = 0, 0.1, 0.3, 0.5) were synthesized by a modified sol-gel method. The phase-pure oxides were obtained. CoO and carbonates were formed on the surface of La 0.8 Sr 0.2 CoO 3 . With increasing doping content, these impurities were reduced while the stability of the perovskite structure was improved. The valence state of B-site ions and the amount of absorbed oxygen were influenced by Mn doping. The catalytic activity of the perovskite catalysts was investigated for CO oxidation and simultaneous removal of CO, C 3 H 8 , and NO. For CO and NO removal, La 0.8 Sr 0.2 Co 0.9 Mn 0.1 O 3 exhibited the best performance. For C 3 H 8 removal, the reactivity was promoted linearly with the doping content. The structure-activity relationship is also discussed.

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Synthesis, Characterization, and Catalytic Activity of Mn‐doped Perovskite Oxides for Three‐Way Catalysis

Zhou

Zhang

et al. 2015

Chem Eng & Technol

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Performance of Non-stoichiometric Perovskite Catalyst (A x CrO3−δ, A: La, Pr, Nd) for Dehydrogenation of Propane Under Steam Condition

2016

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Di-metal-doped sulfur resisting perovskite catalysts for highly efficient H2-SCR of NO

Sun

Zhou

et al. 2018

Environ Sci Pollut Res

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Lanthanide perovskite catalysts doped with limited palladium (to improve activity) and cerium (to improve sulfur resistance) were prepared using sol-gel method. In different B sites, lanthanide perovskites were studied at harsh conditions for H selective catalytic reduction of NO. The activity sequence was as follows: LaCeMnPd > LaCeCoPd > LaCeFePd. LaCeMnPd had a high NO conversion of 96.6% at only 150 °C. And it also had a surprising SO resistance in different SO concentrations. After cutting out SO, NO conversion recovered rapidly to its original level, indicating that the slight deactivation was reversible. In addition, the effect of gas hourly space velocity, H/NO ratio, O, and SO concentration was studied. And XRD, energy-dispersive X-ray, SEM, XPS, H-temperature programmed reduction, and NH-temperature programmed desorption were performed to characterize the catalysts. Graphical abstract ᅟ.

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Effects of B-site substitution on the surface adsorption properties and catalytic activities of La0.8Sr0.2(Mn1−xCox)O3

Cited by 9 publications

References 22 publications

Synthesis, Characterization, and Catalytic Activity of Mn‐doped Perovskite Oxides for Three‐Way Catalysis

Synthesis, Characterization, and Catalytic Activity of Mn‐doped Perovskite Oxides for Three‐Way Catalysis

Performance of Non-stoichiometric Perovskite Catalyst (A x CrO3−δ, A: La, Pr, Nd) for Dehydrogenation of Propane Under Steam Condition

Di-metal-doped sulfur resisting perovskite catalysts for highly efficient H2-SCR of NO

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