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Perovskite type mixed oxides LaCoO3 with high specific surface area was prepared by …
The perovskite LaCoO3 itself has been shown to have good NO oxidation activity, and Sr substitution improves NO oxidation rates and reduces NO2 inhibition. ... Cu-based catalysts are one of the ...
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 …
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 …
In this study, Ag substituted LaCoO3 perovskite (La1-xAgxCoO3) and LaCoO3 supported Ag (Ag/LCO) catalysts were synthesized by the one-pot method and impregnation, respectively, followed by the ...
Partial substitution of lanthanum in the LaCoO3 perovskite with palladium or silver enhances the activity of the monolithic catalysts in the combustion of methane.
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.
DOI: 10.1016/J.SNB.2017.04.059 Corpus ID: 100123873; A thick-film impedancemetric carbon monoxide sensor using layered perovskite-type cuprate @article{Shimizu2017ATI, title={A thick-film impedancemetric carbon monoxide sensor using layered perovskite-type cuprate}, author={Yo Shimizu and Shin Yamamoto and …
The LSM samples, produced by firing to 1000°C for 5 h were then characterised by way of XRD, TPD's of oxygen, TPR and catalytic activity for a simple oxidation reaction, that of carbon monoxide ...
Perovskite type mixed oxides LaCoO3 with high specific surface area was prepared by …
Lanthanum cobaltite (LaCoO3) is one of the most promising catalysts for the oxidation of gaseous pollutants such as carbon monoxide, unburnt hydrocarbons and nitrogen oxide [7, 8]. Lanthanum ...
Thick films of LaCoO3 perovskite and metal oxides (In, Bi and Pd) impregnated in LaCoO3 have been used as sensor materials for sensing temperature and carbon monoxide gas. LaCoO3 has shown good ...
Results 3.1. Catalysts characterization The XRD spectra of LaCoO3 (Cit1) and La0.8 Sr0.2 Co0.8 Cu0.2 O3 (Cit3 and Cop3) samples after 5 h of carbon monoxide oxidation are compared in Figs. 2 and 3. Spectra Cit1 in Fig. 2 shows that calcination at 700 C has completely transformed lanthanum and cobalt nitrates into LaCoO3 perovskite phase.
The present analysis of electronic characteristics of B-site substituted …
Perovskite-type LaCoO 3 has been known to show high catalytic activity …
The stoichiometric LaCoO3 and nonstoichiometric LaCo1.2O3 perovskite catalysts were prepared by citric acid sol–gel method, and then, LaCoO3 perovskite was etched with nitric acid. The structure, surface composition and reducibility of the catalyst were studied by X-ray diffraction (XRD), nitrogen desorption, transmission electron …
An appropriate doping quantity of Ce ion in the LaCoO 3 matrix have …
Complete oxidation of methane to carbon dioxide and water was observed under most conditions with little carbon monoxide or higher hydrocarbon formation. Only for strongly reduced catalysts was ...
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 …
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
The effect of doping has been discussed in terms of enhancement of the reducibility of the perovskite oxides, resulting in lower activation …
Abstract 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 …
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.
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 ...
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 …
DOI: 10.1016/J.MATLET.2021.129588 Corpus ID: 233555252; Simultaneous catalytic oxidation of CO and diesel soot over LaCoO3 perovskite @article{Neha2021SimultaneousCO, title={Simultaneous catalytic oxidation of CO and diesel soot over LaCoO3 perovskite}, author={Neha and Ram Prasad and Satya Vir …
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 ...
LaCoO 3 is a p-type conductor with a rhombohedrally distorted perovskite structure, ... A TEM image of a Pd-LaCoO3 nanowire is shown in Fig. 3 (c); ... Mn 2 O 3, and Co 3 O 4 nanoparticles and their high catalytic performance for carbon monoxide and toluene oxidation. Inorg. Chem., 52 (2013), pp. 8665-8676. CrossRef View in Scopus …
Gold catalysts prepared by coprecipitation for low-temperature oxidation of hydrogen and of carbon monoxide. J. Catal. (1989) H.H. Kung et al. ... This study compares the catalytic activity of CO oxidation over two perovskite catalysts: ... The peak shape of LaNiO3 and LaCoO3 and their attribution are very similar to those of LaMnO3. …
Perovskite-like oxides present huge chemical variability and a wide range of applications as catalysts for oxidation reactions. The interaction of several small gas molecules with the surface of LaCoO3 and LaMnO3 perovskite-like oxides was studied by Near Ambient Pressure X-ray photoelectron spectroscopy (NAP-XPS) and CO …