Effective Ag doping and resistance to sulfur poisoning of La–Mn perovskites for the catalytic flameless combustion of methane

Buchneva, O.; Rossetti, Ilenia; Oliva, Cesare; Scavini, Marco; Cappelli, S.; Sironi, B.; Allieta, Mattia; Kryukov, A.; Forni, L.

doi:10.1039/c0jm01344g

Cited by 21 publications

(24 citation statements)

References 48 publications

(66 reference statements)

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“…A second set of samples was prepared in nanopowder form by means of a flame pyrolysis apparatus,19–24, 27, 28 with the aim to impart high thermal stability and tune the metal dispersion. The Ti‐based sample was synthesised by using a solution of titanium(IV)isopropylate (Aldrich, 97 %, 0.67 M ) in xylene, in which the concentration is referred to TiO 2 .…”

Section: Methodsmentioning

confidence: 99%

“…20 Furthermore, it led to unexpectedly high dispersion of the active phase in differently supported V‐based catalysts even at relatively high loading (up to 10 wt %) 21. 24 Therefore, it seems interesting to compare the effect of different preparation methods, which in principle lead to different dispersions of the active phase and interactions with the support.…”

Section: Introductionmentioning

confidence: 99%

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ChiuZ – damals und heute

Schumacher

2016

Chemie in nserer Zeit

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Im März 1967 erschien das erste Heft des ersten Jahrgangs der “Chemie in unserer Zeit”. Es liegt heute wieder vor mir und ich versuche mich zu erinnern, was ich empfand, als ich vor 50 Jahren dieses Heft zum ersten Mal in der Hand hielt. Es gelingt mir nicht im Detail – aber in Erinnerung ist geblieben, dass ich die ChiuZ von Anfang an stets mit Interesse gelesen und als große Bereicherung empfunden habe. Diese Zeitschrift hat mich mit ihrem breiten Spektrum und den Anregungen, sich auch mit schwierigen Themen auseinanderzusetzen, ein halbes Jahrhundert lang kontinuierlich bei Studium, Beruf und ehrenamtlicher Tätigkeit begleitet. Alle Hefte wurden von mir sorgfältig aufbewahrt, so dass sich nun die komplette Ausgabe in Bücherregalen zu Hause aufreiht. Inwieweit ist sich die ChiuZ über die Jahrzehnte hinweg treu geblieben? Hierzu ein kurzer Rückblick:

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

ChiuZ – damals und heute

Schumacher

2016

Chemie in nserer Zeit

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“…LaMnO 3 113 improve activity. Buchneva et al 118 also showed that Ag addition leads to increased Mn n+ reducibility and O 2 mobility along the lattices of catalysts prepared by both the sol-gel citrate and flame spray pyrolysis methods, thereby leading to an increase in catalytic performance relative to the undoped samples. Thus, a more detailed characterization of these species may be useful to evaluate the impacts on the catalytic performance further and to continue developing the catalyst.…”

Section: Pd-doped Perovskite Catalystsmentioning

confidence: 98%

“…118,190 The poisoning mechanism resulting from the interaction with SO 2 has been studied in the literature. 118,190 The poisoning mechanism resulting from the interaction with SO 2 has been studied in the literature.…”

Section: Impact and Consequence Of Sulfur Presence On Perovskite Camentioning

confidence: 99%

“…118,190 The poisoning mechanism resulting from the interaction with SO 2 has been studied in the literature. 117,118,[192][193][194] Rosso et al 195 evaluated the role of chromium in the perovskite structure by comparing it with other Cr-free perovskites in the literature. 82 Zhu et al 191 studied on the oxidation and poisoning mechanism of SO 2 with LaCoO 3 /Al 2 O 3 film model catalyst.…”

Section: Impact and Consequence Of Sulfur Presence On Perovskite Camentioning

confidence: 99%

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Perovskite catalysts for methane combustion: applications, design, effects for reactivity and partial oxidation

Başhan

Üst

2019

Int J Energy Res

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Summary This review underlines the importance of the developments in perovskite catalysts for methane combustion from the past up to the present. In this review, after a general and brief introduction to perovskites, the mechanisms of catalytic combustion of methane have been included. Moreover, current studies on perovskites have been summarized including the effects of substitutions, doped perovskites, perovskite preparation methods, and the effect of sulfur presence on perovskite catalysts. Besides, recent studies on perovskite oxides and phenomenon of oxygen (O2) deficiency, porous perovskite oxides, and nanostructured perovskites have been conducted. In addition, partial oxidation of methane (POM) has been reviewed. The loss of active component during the POM reaction can take place in the nickel catalyst, in particular. Since nickel has a lower melting point than noble metals and other active components, such as Co and Fe, in general, to deactivate nickel is easier. Compared with conventional structure, the porous structure with the unique morphology significantly enhances the catalytic activity through a much larger surface area (SA) and greater reactivity of the active sites. Furthermore, the monolithic nanoarrayed perovskite presents very good results in well‐defined faceted catalysts and takes part in porous channel hydrocarbon combustion. This review study is prepared as a guide to cover the profound knowledge of perovskite oxides catalysts, considering the methane combustion reaction mechanisms, and addresses prospective studies in this field for researchers.

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