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Abstract The search for substitutes of noble metal supported exhaust control catalysts has led to the study of a number of perovskite oxides (1). The mechanisms of redox processes on these surfaces are topotactic in nature, thus accounting forthe reversible loss and uptake of bulk oxygen or for the concomitant creation and …
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Controlled generation of uniform spherical LaMnO 3, LaCoO 3, Mn 2 O 3, and Co 3 O 4 nanoparticles and their high catalytic performance for carbon monoxide and toluene …
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Abstract. La x Sr 1-x (Mn, Fe, Co)O 3-δ, and Ba y Sr 1-y CoO 3-δ perovskite oxide powders were investigated as potential thermochemical energy storage (TES) materials …
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Perovskite type mixed oxides LaCoO3 with high specific surface area was prepared by reactive grinding. These catalysts was characterized by X-ray diffraction (XRD), …
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La0.8Sr0.2MnO3 (LSM) catalyst has been successfully prepared by solid phase method (G-LSM-T), sol–gel method (C-LSM-T) and molten salt method (S-LSM-T), using as-prepared MnCO3 microspheres as templates, respectively. It was shown that the S-LSM-550 catalyst presented well-formed perovskite structures, large specific surface …
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Carbon monoxide oxidation on LaCoO 3 perovskite type catalysts prepared by reactive grinding Patel Femina and Patel Sanjay Department of Chemical Engineering Institute of Technology, Nirma University, Ahmedabad-382481, INDIA Available online at: (Received 4th thOctober 2011, revised 9th January 2012, accepted 25 January 2012) …
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Cooperative effect between copper species and oxygen vacancy in Ce0.7−xZrxCu0.3O2 catalysts for carbon monoxide oxidation. Shan Wang Xuelian Xu P. Xiao Junjiang Zhu Xinying Liu. Chemistry, Materials Science ... Co oxides and LaCoO3 perovskite: structural characterization and catalytic CO oxidation. S. Colonna S. Rossi M. Faticanti I. Pettiti ...
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DOI: 10.1016/J.CATCOM.2008.03.015 Corpus ID: 5999178; CO oxidation on perovskite-type LaCoO3 synthesized using ethylene glycol and citric acid @article{Taguchi2008COOO, title={CO oxidation on perovskite-type LaCoO3 synthesized using ethylene glycol and citric acid}, author={Hideki Taguchi and …
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Specific surface area of perovskites were 2.60 m2g-1 and 5.31 m2g-1 for LaCoO3 and La0.8Sr0.2CoO3 respectively.The catalytic activity of the perovskite samples (for low-temperature CO oxidation ...
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Cobalt oxidation and spin states. Phase-pure perovskite-type oxides (Supplementary Fig. 1) of the composition LaCo 0.8 X 0.2 O 3 (LCX-82) with X = Al, Ni, Zn, or LaCo 1 − x Al x O 3 with x = [0 ...
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The Ca-substituted LaCoO3 (La0.9Ca0.1CoO3) and citric acid-etched LaCoO3 (LaCoO3-CA) show T90 at 220 and 215 oC, respectively, which are substantially lower than that of pristine LaCoO3 (305 oC).
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Au/3DOM LaCoO3: High-performance catalysts for the oxidation of carbon monoxide and toluene. Xinwei Li H. Dai +6 authors Hamidreza Arandiyan. Chemistry, Materials Science. 2013; 111. ... LaCoO3 perovskite oxide activation of peroxymonosulfate for aqueous 2-phenyl-5-sulfobenzimidazole degradation: Effect of synthetic method and the reaction ...
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CO catalytic oxidation on the perovskite oxide LaCoO3, which can be ascribed to a decoration of Co3O4 nanoparticles on the surface, was achieved with 90 % conversion rate at 202 °C. ... Preferential oxidation of carbon monoxide on Co/CeO2 nanoparticles. M. P. Woods Preshit Gawade B. Tan U. Ozkan. Chemistry, Materials Science. 2010; 121.
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Perovskite phase does not form when the amount of deposited cobalt oxide is too low. Both in the nanostructured sample prepared by citrate gel method and nanocomposite …
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Finally carbon monoxide oxidation was considered to investigate (by means of DRIFT spectroscopy) the influence of the preparation procedure on the powder reactivity. CO interacts with the surface of all the samples originating a …
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Perovskite oxides LaCoO 3 prepared by templating, co-precipitation and sol-gel method with different complexants were systematically characterized and its catalytic performances for CO oxidation ...
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Semantic Scholar extracted view of "Architecting multi-active center on 3DOM La0.76Ce0.19Ag0.05Mn0.9Co0.1O3-δ perovskite for soot oxidation" by N. Feng et al. Skip to search ... carbon monoxide, nitrogen oxides, and particulate … Expand. 7. Save. ... Defect Engineering Technique for the Fabrication of LaCoO3 Perovskite Catalyst via …
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The XRD spectra of LaCoO 3 (Cit1) and La 0.8 Sr 0.2 Co 0.8 Cu 0.2 O 3 (Cit3 and Cop3) samples after 5 h of carbon monoxide oxidation are compared in Fig. 2, Fig. 3. Spectra Cit1 in Fig. 2 shows that calcination at 700 °C has completely transformed lanthanum and cobalt nitrates into LaCoO 3 perovskite phase.
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Catalytic oxidation of carbon monoxide over the perovskite-type mixed catalysts Lll(i+xll:zSr(l-x)I2COt-xCUx0l-A. (0.1 :::; x $ 0.9) has been investigated. Activity testing results show that the catalysts in the range x = 0.1-0.4 are of high activity for CO oxidation, especially, the catalyst of x = 0.4 can make CO to oxidize completely below 170" and is …
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DOI: 10.1016/J.CEJ.2008.08.041 Corpus ID: 97021759; Modified LaCoO3 nano-perovskite catalysts for the environmental application of automotive CO oxidation @article{Seyfi2009ModifiedLN, title={Modified LaCoO3 nano-perovskite catalysts for the environmental application of automotive CO oxidation}, author={Bahman Seyfi and …
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CO catalytic oxidation on the perovskite oxide LaCoO3, which can be ascribed to a decoration of Co3O4 nanoparticles on the surface, was achieved with 90 % conversion rate at 202 °C. ... Catalytic Oxidation of Carbon Monoxide over Transition Metal Oxides. S. Royer D. Duprez. Chemistry, Environmental Science. 2011; Oxidation …
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The effect of doping has been discussed in terms of enhancement of the reducibility of the perovskite oxides, resulting in lower activation energies for the catalytic oxidation of …
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Semantic Scholar extracted view of "CO sensitive nanocrystalline LaCoO3 perovskite sensor prepared by high energy ball milling" by Mohammad Ghasdi et al. ... Carbon monoxide oxidation on LaCoO 3 perovskite type catalysts prepared by reactive grinding. P. Femina P. Sanjay.
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1. Introduction. As a key industry involving major fossil fuel consumption, shipping is one of the important sources of global air pollution. The main pollutants emitted by ships include carbon dioxide (CO 2), nitrogen oxides (NO x), particulate matter (PM), carbon monoxide (CO), and hydrocarbons (HC) [1], [2].The ship exhaust has a wide temperature range …
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Request PDF | On Mar 1, 2023, Neha and others published Insights into the interface of NiCo2O4 Spinel /LaCoO3 perovskite Nano-composite for CO and Soot oxidation | Find, read and cite all the ...
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Research Journal of Recent Sciences ISSN 2277 2502 Vol. 1(ISC2011), 152159 (2012) Res.J. Recent. Sci. Carbon monoxide oxidation on LaCoO3 perovskite type catalysts prepared by reactive grinding Patel
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Controlled generation of uniform spherical LaMnO3, LaCoO3, Mn2O3, and Co3O4 nanoparticles and their high catalytic performance for carbon monoxide and toluene oxidation Inorg Chem . 2013 Aug 5;52(15):8665-76. doi: 10.1021/ic400832h.
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Semantic Scholar extracted view of "Stoichiometric (LaCoO3) vs. Non-stoichiometric (LaCo0.9O3−δ) perovskite catalysts for CO oxidation: Kinetics and reaction models" by Minjae Kim et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 219,913,437 papers from all fields of science ...
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It is well known that the high concentration of surface adsorbed oxygen is beneficial to the catalytic oxidation ability of the perovskite catalyst, which is one of the positive factors …
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A study of CO oxidation on LaCoO3 perovskite was performed in an ultrahigh vacuum system by means of adsorption and desorption. All gases were adsorbed at ambient temperature. Two adsorption states (α- and β-) of CO exist. The α-peak at 440 K is attributed to carbonyl species adsorbed on Co3+ ions while the β-peak at 663 K likely …
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DOI: 10.1002/CEAT.201800008 Corpus ID: 202066242; Catalytic Oxidation of CO over Nanocrystalline La 1–x Ce x NiO 3 Perovskite‐Type Oxides @article{Amini2019CatalyticOO, title={Catalytic Oxidation of CO over Nanocrystalline La 1–x Ce x NiO 3 Perovskite‐Type Oxides}, author={Sajjad Amini and Fereshteh …
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Semantic Scholar extracted view of "Ba-doped vs. Sr-doped LaCoO3 perovskites as base catalyst in diesel exhaust purification" by Jon A. Onrubia-Calvo et al. ... Ca, Fe, and Mn-Doped LaCoO3 Perovskite Oxide for the Four-Way Purification of PM, NOx, CO, and HC from Diesel Engine Exhaust ... with either carbon monoxide, urea, …
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Perovskite type mixed oxides LaCoO3 with high specific surface area was prepared by reactive grinding. These catalysts was characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM) - Energy dispersive X-ray spectroscopy (EDX or EDS) and …
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The deactivation mechanism and methods to cope with the poisoning by SO2 of LaCoO3 perovskite-based NO oxidation catalyst were investigated. The LaCoO3 perovskite was synthesized by a sol-gel ...
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As a result, perovskite-type mixed oxides can be used in several applications such as catalytic sensing of carbon monoxide and methane, solid-state fuel cells and toluene combustion applications ...
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The substitution of 0.05 mol La with Pd enhances the activity of the LaMnO3 in CO oxidation. La0.9Pd0.1MnO3 and La0.85Pd0.15MnO3 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 La1−xPdxMnO3 than …
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A solid-state reaction process has been developed to synthesize perovskite-type LaCoO 3 nanocrystals with grain diameters of 15-40 nm. In the first step of the preparation, ∼5 nm composite hydroxide nanoparticles are synthesized by the solid-state reaction of La(NO 3 ) 3 .nH 2 O and Co(NO 3 ) 2 .6H 2 O with KOH at ambient …
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