Effect of strontium and cerium doping on the structural characteristics and catalytic activity for C3H6 combustion of perovskite LaCrO3 prepared by sol–gel

Rida, Kamel; Benabbas, A.; Bouremmad, Farida; Peña, M.A.; Sastre, Enrique; Martı́nez-Arias, A.

doi:10.1016/j.apcatb.2008.04.031

Cited by 50 publications

(19 citation statements)

References 54 publications

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“…3). This latter endothermic peak attributable to the formation of the oxide was also found for LaCrO 3 synthesized through the sol-gel route [24,25].…”

Section: Characterization Techniquesmentioning

confidence: 74%

Synthesis and Electrochemical Properties of LaCr1−xCoxO3 (0 ≤ x ≤ 0.5) via Co-precipitation Method

Madoui

Omari

2016

J Inorg Organomet Polym

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Perovskite LaCr 1-x Co x O 3 (0 B x B 0.5) oxides synthesized by co precipitation method were investigated. X-ray diffraction, thermo gravimetric and differential thermal analysis, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM) and electrochemical measurements, were used to characterize the structure, morphology, electrochemical properties of the samples. The studied compounds have orthorhombic and rhombohedral systems in the ranges (0 B x B 0.2) and (0.3 B x B 0.5) respectively. Thermal analysis results indicate that the pure phase was obtained at temperature above 800°C. The structure and morphology of the samples characterized by SEM measurements indicate that particles have nearly spherical shapes and are agglomerated. The electrochemical measurements indicate that the catalytic activity is strongly influenced by cobalt doping. The highest electrode performance is achieved with large cobalt content.

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“…3). This latter endothermic peak attributable to the formation of the oxide was also found for LaCrO 3 synthesized through the sol-gel route [24,25].…”

Section: Characterization Techniquesmentioning

confidence: 74%

Synthesis and Electrochemical Properties of LaCr1−xCoxO3 (0 ≤ x ≤ 0.5) via Co-precipitation Method

Madoui

Omari

2016

J Inorg Organomet Polym

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“…The most promising alternative catalysts appear be perovskite oxides with the general formula ABO 3 , where lanthanides usually occupy the A-site position and first-row transition metals are at the B-site, such as LaMnO 3 , LaCoO 3 , LaNiO 3 , LaCrO 3 , and LaFeO 3 (Arendt et al 2008;Deng et al 2009;Perenguez et al 2010;Rida et al 2008;Asada et al 2008) . Among these investigated perovskite oxide catalysts, LaCoO 3 catalyst perovskites have attracted much attention because of their good thermal stability and adequate catalytic activity for VOC combustion (Einaga et al 2016;Alifanti et al 2007). …”

Section: Introductionmentioning

confidence: 99%

Combined promoting effects of low-Pd-containing and Cu-doped LaCoO3 perovskite supported on cordierite for the catalytic combustion of benzene

Chen

Niu

et al. 2016

Environ Sci Pollut Res

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The catalytic activities for benzene oxidation and resistance to SO2 poisoning were tested for a series of Pd/La-Cu-Co-O/cordierite catalysts, which were prepared using a multiple-step impregnation method. The XRD, SEM, and IR characterization techniques were performed to investigate the relationship between the catalytic performance and its physicochemical properties. When Pd/La-Cu-Co-O/cordierite catalysts with Pd loadings of 0.06 and 0.08 % were prepared at a calcination temperature of 500 °C for 5 h, they exhibited similar catalytic activity and sulfur resistance. When the concentration of benzene was 1500 ppm and the GHSV was 20000 h(-1), the benzene conversion was above 95 % at a reaction temperature of 350 °C in SO2 existing at 100 ppm. These results were mainly attributed to the cooperation between La-Cu-Co-O perovskite and the noble metal Pd. Specifically, the addition of copper can strengthen the catalytic activity of La-Co-O/cordierite catalysts by decreasing the crystalline size of the active ingredients. A moderate Pd addition can drastically improve the sulfur resistance and further improve the catalytic activity of the La-Cu-Co-O/cordierite catalyst.

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“…260 o C can be due to the decomposition of citrate acid residues[36,45]. The weight loss observed at ~ 485 o C can be caused by the burn-off of carbonaceous deposits which were produced during LaNiO 3 preparation by citrate sol-gel method[22,34,36,45]. The weight loss at ~ 635 o C is probably related to the decomposition of lanthanum carbonate which could be formed due to the CO 2 released during gel combustion[36,[45][46][47].…”

mentioning

confidence: 94%

“…685 o C. The origin of the weight loss at ca. 260 o C can be due to the decomposition of citrate acid residues[36,45]. The weight loss observed at ~ 485 o C can be caused by the burn-off of carbonaceous deposits which were produced during LaNiO 3 preparation by citrate sol-gel method[22,34,36,45].…”

mentioning

confidence: 98%

Hydrogen production by autothermal reforming of methane: Effect of promoters (Pt, Pd, Re, Mo, Sn) on the performance of Ni/La2O3 catalysts

Исмагилов

Матус

Kuznetsov

et al. 2014

Applied Catalysis A: General

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Effect of strontium and cerium doping on the structural characteristics and catalytic activity for C3H6 combustion of perovskite LaCrO3 prepared by sol–gel

Cited by 50 publications

References 54 publications

Synthesis and Electrochemical Properties of LaCr1−xCoxO3 (0 ≤ x ≤ 0.5) via Co-precipitation Method

Synthesis and Electrochemical Properties of LaCr1−xCoxO3 (0 ≤ x ≤ 0.5) via Co-precipitation Method

Combined promoting effects of low-Pd-containing and Cu-doped LaCoO3 perovskite supported on cordierite for the catalytic combustion of benzene

Hydrogen production by autothermal reforming of methane: Effect of promoters (Pt, Pd, Re, Mo, Sn) on the performance of Ni/La2O3 catalysts

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