Effect of different solvents in the synthesis of LaCoO3 nanopowders prepared by the co-precipitation method

Chandradass, J.; Kim, Hern; Momade, Francis W.Y.

doi:10.1016/j.apt.2014.07.014

Cited by 23 publications

(14 citation statements)

References 21 publications

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“…LaCoO 3 is a p-type conductor with a rhombohedrally-distorted perovskite structure, and the electronic conduction occurs through the transfer of charge carriers via Co-O-Co bonds. 7,8 Several synthesis methods for the preparation of LaCoO 3 , including solid-state reaction, 9 sol-gel method, 10 coprecipitation, 11 combustion method, 12 spray-freezing/freezedrying, 13 flame-spray pyrolysis, 14 etc., have been developed.…”

Section: Introductionmentioning

confidence: 99%

LaCoO₃-based sensors with high sensitivity to carbon monoxide

Ding

Cai

et al. 2015

RSC Adv.

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LaCoO 3 -based sensors, as fabricated of LaCoO 3 nanoparticles of ∼82 nm, show a response of ∼279.86 toward CO at 500 °C, due to the high content of O 2 2-/Ospecies in LaCoO 3 .LaCoO3 nanoparticles with particle size of ∼82 nm was prepared by co-precipitation, and mesoporous LaCoO3 thick films with a thickness of ∼7 µm were fabricated by screen printing the nanoparticles on Al2O3 substrates. The CO sensing properties of the LaCoO3 thick films were characterized in the temperature range of 100 to 550 °C. Under 5000 ppm CO at 500 °C, the thick film sensor achieved a high sensing response of ∼279.86, with response and recovery periods of 181 and 311 s, respectively. Under 25 ppm CO at 500 °C, a reasonable response of 1.04 was also achieved. Moreover, the sensor demonstrated reliable dynamic response-and-recovery at a temperature as low as 100 °C, therefore, LaCoO3 is very promising for CO sensing at low temperatures. The high response to CO could be ascribed to the high content of O2 2-/Ospecies in LaCoO3.

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Section: Introductionmentioning

confidence: 99%

LaCoO₃-based sensors with high sensitivity to carbon monoxide

Ding

Cai

et al. 2015

RSC Adv.

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“…From the figure, a wide peak which lies between 100-450 o C and 450-570 o C was observed. Current literatures have reported that the peaks observed in the low temperature region corresponds to desorbed oxygen molecules which are engrossed on the surface vacancies of the catalysts (α oxygen species) [50][51][52][53] . Furthermore, the O 2 -TPD plots obtained in this research study displays two main kinds of absorbed oxygen species.…”

Section: Fig 4 H 2 -Tpr Plots Of Prepared Catalystmentioning

confidence: 99%

Synthesis and Characterization of A-Site Doped Lamno3 Nano Catalysts and its Application for Soot Oxidation

et al. 2019

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A series of barium doped LaMnO3 perovskite nano catalysts were synthesized using the citric acid sol gel method. The prepared nano catalysts were characterized using the various characterization techniques such as XRD, ICPAES, FTIR, SEM, HRTEM, TPR and BET. The Xrd results showed the purity of the prepared catalyst as no segregated phases were observed and also confirming the crystallinity of the prepared catalyst. The surface area achieved in this experiment presented one of the highest reported in literature. The doping of the perovskite catalysts helps in increasing the surface area. The ICPAES results shows the efficiency of the preparation method adopted. The catalytic evaluation shows that upon introduction of Ba into the perovskite structure, the catalytic performance of the catalyst were greatly increased with LBM3 giving the lowest T50 at 550°C

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“…LaCoO 3 nanoparticles were prepared according the method reported by Chandradass et al, (2014) with some modications: 24 certain amount of La(NO 3 ) 3 $6H 2 O and Co(NO 3 ) 2 $6H 2 O were weighed precisely according to the atomic ratio of the target product and dissolved in 80 mL ethanol, then ammonia water were added dropwise under stirring to form La(OH) 3 and Co(OH) 2 and the nal pH was 9. The suspension were stirred for two more hours.…”

Section: Preparation and Characterization Of Lacoo 3 Nanoparticlementioning

confidence: 99%

Effects of LaCoO₃ perovskite nanoparticle on Daphnia magna: accumulation, distribution and biomarker responses

et al. 2019

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Effect of different solvents in the synthesis of LaCoO3 nanopowders prepared by the co-precipitation method

Cited by 23 publications

References 21 publications

LaCoO₃-based sensors with high sensitivity to carbon monoxide

LaCoO₃-based sensors with high sensitivity to carbon monoxide

Synthesis and Characterization of A-Site Doped Lamno3 Nano Catalysts and its Application for Soot Oxidation

Effects of LaCoO₃ perovskite nanoparticle on Daphnia magna: accumulation, distribution and biomarker responses

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Effect of different solvents in the synthesis of LaCoO3 nanopowders prepared by the co-precipitation method

Cited by 23 publications

References 21 publications

LaCoO3-based sensors with high sensitivity to carbon monoxide

LaCoO3-based sensors with high sensitivity to carbon monoxide

Synthesis and Characterization of A-Site Doped Lamno3 Nano Catalysts and its Application for Soot Oxidation

Effects of LaCoO3 perovskite nanoparticle on Daphnia magna: accumulation, distribution and biomarker responses

Contact Info

Product

Resources

About

LaCoO₃-based sensors with high sensitivity to carbon monoxide

LaCoO₃-based sensors with high sensitivity to carbon monoxide

Effects of LaCoO₃ perovskite nanoparticle on Daphnia magna: accumulation, distribution and biomarker responses