Complete oxidation of hydrocarbons on YFeO3 and LaFeO3 catalysts

Markova-Velichkova, M.; Lazarova, Ts.; Tumbalev, V.; Ivanov, G. R.; Kovacheva, D.; Stefanov, P.; Naydenov, A.

doi:10.1016/j.cej.2013.07.029

Cited by 67 publications

(26 citation statements)

References 36 publications

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“…Methane oxidation takes place according to a suprafacial mechanism below 800 °C and according to an intrafacial one at higher temperature [51]. The combustion of toluene on LaFeO 3 and YFeO 3 is probably a suprafacial reaction, although the scenario of an intrafacial mechanism cannot be ruled out in the case of the latter oxide [52].…”

Section: Reaction Mechanismsmentioning

confidence: 99%

Structured Perovskite-Based Catalysts and Their Application as Three-Way Catalytic Converters—A Review

et al. 2014

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Automotive Three-Way Catalysts (TWC) were introduced more than 40 years ago. Despite that, the development of a sustainable TWC still remains a critical research topic owing to the increasingly stringent emission regulations together with the price and scarcity of precious metals. Among other material classes, perovskite-type oxides are known to be valuable alternatives to conventionally used TWC compositions and have demonstrated to be suitable for a wide range of automotive applications, ranging from TWC to Diesel Oxidation Catalysts (DOC), from NO x Storage Reduction catalysts (NSR) to soot combustion catalysts. The interest in these catalysts has been revitalized in the past ten years by the introduction of the concept of catalyst regenerability of perovskite-based TWC, which is in principle well applicable to other catalytic processes as well, and by the possibility to reduce the amounts of critical elements, such as precious metals without seriously lowering the catalytic performance. The aim of this review is to show that perovskite-type oxides have the potential to fulfil the requirements (high activity, stability, and possibility to be included into structured catalysts) for implementation in TWC.

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Section: Reaction Mechanismsmentioning

confidence: 99%

Structured Perovskite-Based Catalysts and Their Application as Three-Way Catalytic Converters—A Review

et al. 2014

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“…1). For the peak within low temperature ( $ 680 K), although there are controversies about the reduction of Fe 4 þ or the iron species on the surface and the removal of surface oxygen (Ciambelli et al, 2001;Chen et al, 2013;Velichkova et al, 2013), the nonstoichiometric composition contains oxygen vacancies that can be filled up is the only reason for the presence of In order to decide the relationship between the structure and available oxygen, the combination of CH 4 -TPSR, XRD and XPS characterization was used to explore the losses of oxygen species, catalyst structure and surface state. In CH 4 -TPSR, the main products are CO and H 2 , while only small amounts of CO 2 and H 2 O are detected in Fig.…”

Section: Materials Characterizationmentioning

confidence: 99%

Reduction kinetics of lanthanum ferrite perovskite for the production of synthesis gas by chemical-looping methane reforming

Dai

Cheng

et al. 2016

Chemical Engineering Science

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“…28,29 Two La 3d peaks at 836.2 and 852.3 eV were identied as spin-orbit splitting of 3d5/2 and 3d3/2 of La 3+ , respectively, in the oxide. 30 For O 1s spectra, only one peak at 531.6 eV was observed and was ascribed to the oxygen network in the perovskite lattice of LaFeO 3 .…”

Section: Resultsmentioning

confidence: 99%

Superior photocatalytic performance of LaFeO₃/g-C₃N₄ heterojunction nanocomposites under visible light irradiation

Feng

2017

RSC Adv.

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New types of LaFeO 3 /g-C 3 N 4 heterostructures were successfully prepared and the enhanced photocatalytic hydrogen evolution and degradation activities under visible light irradiation were determined. They possessed the features of a Z-scheme photocatalysis system. The photoexcited electrons on the conduction band of LaFeO 3 were transferred to the valence band of g-C 3 N 4 by the solid-solid intimately contacted interfaces, where the electrons and holes were recombined, and thus improved the separation of photogenerated electrons and holes of g-C 3 N 4 . The LaFeO 3 /g-C 3 N 4 heterostructures showed a higher hydrogen evolution rate and a higher amount of cOH than pure LaFeO 3 and g-C 3 N 4 . The construction of the LaFeO 3 /g-C 3 N 4 heterostructures was used to demonstrate an effective strategy for improving the photocatalytic property. The 5%-LaFeO 3 /g-C 3 N 4 exhibited the highest photodegradation and water splitting rate. More than 95% of methylene blue (MB) was degraded after 15 min in the presence of 25 mg EDTA-2Na in 100 mL MB solution which was irradiated using a 3 W light-emitting diode. The 5%-LaFeO 3 /g-C 3 N 4 heterojunction nanocomposite had a maximum hydrogen evolution rate of 158 mmol g À1 h À1.

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Complete oxidation of hydrocarbons on YFeO3 and LaFeO3 catalysts

Cited by 67 publications

References 36 publications

Structured Perovskite-Based Catalysts and Their Application as Three-Way Catalytic Converters—A Review

Structured Perovskite-Based Catalysts and Their Application as Three-Way Catalytic Converters—A Review

Reduction kinetics of lanthanum ferrite perovskite for the production of synthesis gas by chemical-looping methane reforming

Superior photocatalytic performance of LaFeO₃/g-C₃N₄ heterojunction nanocomposites under visible light irradiation

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Complete oxidation of hydrocarbons on YFeO3 and LaFeO3 catalysts

Cited by 67 publications

References 36 publications

Structured Perovskite-Based Catalysts and Their Application as Three-Way Catalytic Converters—A Review

Structured Perovskite-Based Catalysts and Their Application as Three-Way Catalytic Converters—A Review

Reduction kinetics of lanthanum ferrite perovskite for the production of synthesis gas by chemical-looping methane reforming

Superior photocatalytic performance of LaFeO3/g-C3N4 heterojunction nanocomposites under visible light irradiation

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Product

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About

Superior photocatalytic performance of LaFeO₃/g-C₃N₄ heterojunction nanocomposites under visible light irradiation