High temperature phase transition in Sm0.95MnO2.925

Wandekar, R.V.; Wani, B.N.; Bharadwaj, S.R.

doi:10.1016/j.jallcom.2006.07.080

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…LaMnO 3 2θ at 22.9, 32.6, 40.2, 46.9, 52.7, 58.1 and 68.2º 15 ,with crystal structures adjusted to a pseudo-cubic arrangement 16,17 . It can be observed, however, a gradual shift of the XRD peaks to lower diffraction angles as the Fe content increased with cell parameters increasing from 3.885 (2) Mössbauer spectra of the LaMn Figure 3, with the hyperfine parameters in Table 1.…”

Section: Characterization Of the Perovskitesmentioning

confidence: 99%

LaMn1-xFe xO3 and LaMn0.1-xFe0.90Mo x O3 perovskites: synthesis, characterization and catalytic activity in H2O2 reactions

et al. 2008

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In this work two perovskites were prepared: LaMn 1-x Fe x O 3 , and LaMn 0.1-x Fe 0.90 Mo x O 3 . XRD and Mössbauer spectroscopy suggest the formation of pure phase perovskite with the incorporation of Fe and Mo in the structure. The catalytic activity of these materials was studied in two reactions with H 2 O 2 : the decomposition to O 2 , and the oxidation of the model organic contaminant methylene blue. The perovskite composition strongly affects the catalytic activity, while Fe decreases the H 2 O 2 decomposition Mo strongly improves dye oxidation.

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Section: Characterization Of the Perovskitesmentioning

confidence: 99%

LaMn1-xFe xO3 and LaMn0.1-xFe0.90Mo x O3 perovskites: synthesis, characterization and catalytic activity in H2O2 reactions

et al. 2008

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“…Perovskite manganites are another kind of strong electron correlation system after the high temperature oxide superconductors [1][2][3][4][5]. Perovskite manganites have rich and complex physical properties, and have wide application in the field of magnetic materials [6][7][8][9][10][11]. As new perovskite type manganese oxide materials, the application of SmMnO 3 in photocatalytic degradation of pollutants has not been reported, so it is significant to study the photocatalytic activities of SmMnO 3 .…”

Section: Introductionmentioning

confidence: 99%

Characterization and Photocatalytic Activity of SmMnO<sub>3</sub> Prepared by Sol-Gel Process

Min

Tang

et al. 2017

KEM

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Using samarium (III) nitrate hexahydrate, manganese nitrate and citric acid as main raw materials, the SmMnO3 gel was prepared by sol-gel process. The gel was kept at 100 °C for 24 h to get the xerogel. Then, the xerogel was respectively calcined in muffle furnace at 600 °C, 700 °C, 800 °C and 900 °C. The structure and morphology of samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier Transform Infrared (FT-IR) spectroscopy. The UV photocatalytic activities of SmMnO3 were investigated by methyl orange which was used as simulated sewage. The results show that the pure SmMnO3 can be obtained through calcination between 700 °C and 800 °C, and the SmMnO3 have an average particle size of 80 nm. The SmMnO3 samples calcined at 700 °C and 800 °C show high photocatalytic activity for decomposition of methyl orange under UV-light irradiation. The SmMnO3 samples are consistent with first-order kinetics for the degradation of methyl orange. And the apparent rate constants are respectively k700 =0.01206 min-1and k800=0.01088 min-1.

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Preparation of nanostructured manganites SmMnO3 and Sm0.5Sr0.5MnO3 by mechanochemical synthesis method

Hannora

Hanna

2019

J Mater Sci: Mater Electron

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High temperature phase transition in Sm0.95MnO2.925

Cited by 3 publications

References 17 publications

LaMn1-xFe xO3 and LaMn0.1-xFe0.90Mo x O3 perovskites: synthesis, characterization and catalytic activity in H2O2 reactions

LaMn1-xFe xO3 and LaMn0.1-xFe0.90Mo x O3 perovskites: synthesis, characterization and catalytic activity in H2O2 reactions

Characterization and Photocatalytic Activity of SmMnO<sub>3</sub> Prepared by Sol-Gel Process

Preparation of nanostructured manganites SmMnO3 and Sm0.5Sr0.5MnO3 by mechanochemical synthesis method

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