Wide‐Range Tuning of the Mo Oxidation State in La1–xSrxFe2/3Mo1/3O3 Perovskites

Istomin, S.Ya.; Chernova, Varvara V.; Antipov, Evgeny V.; Lobanov, Maxim V.; Бобриков, И.А.; Yushankhai, V.; Балагуров, А.М.; Hsu, Kung-Shu; Lin, Jiunn‐Yuan; Chen, J. M.; Lee, J. F.; Волкова, О. С.; Vasiliev, A. N.

doi:10.1002/ejic.201600020

Cited by 2 publications

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References 39 publications

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“…7b). 71–73 As is seen, the absorption edge of the spectra of Fe 4 O 5 was located between those of Fe 1− x O and Fe 3 O 4 ; furthermore, it was much closer to the latter. Absorption edges are primarily related to the mean oxidation state.…”

Section: Resultsmentioning

confidence: 65%

“…For the trigonal-prismatic 26 The upper inset compares the absorption edges of Fe 4 O 5 and iron-oxide calibrants. [71][72][73] The lower inset depicts a magnetic-field hysteresis of an X-ray magnetic circular dichroism (XMCD) signal at 43 K, suggesting the appearance of a magnetic order.…”

Section: Single-crystal X-ray Diffractionmentioning

confidence: 99%

“…(b) Normalized XANES spectra at the Fe K-edge of the Fe 4 O 5 polycrystal, acquired above and below the charge-ordering phase transition point of 150 K 26. The upper inset compares the absorption edges of Fe 4 O 5 and iron-oxide calibrants [71][72][73]. The lower inset depicts a magnetic-field hysteresis of an X-ray magnetic circular dichroism (XMCD) signal at 43 K, suggesting the appearance of a magnetic order.…”

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Electronic properties of single-crystalline Fe₄O₅

et al. 2023

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Section: Resultsmentioning

confidence: 65%

Section: Single-crystal X-ray Diffractionmentioning

confidence: 99%

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Electronic properties of single-crystalline Fe₄O₅

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Aspects of Fe-Incorporation into CaTiO3-SrTiO3 Perovskites and Their Catalytic Application for Ammonia SCO/SCR

Gwóźdź,

Łącz,

Górecka

et al. 2024

Molecules

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Perovskite materials in the CaTiO3-SrTiO3 system doped with different amounts of iron (1, 2 and 5 mol.%) and various Ca/Sr ratios were prepared by the modified citrate method. Additionally, the materials with 0.05 deficiency in strontium/calcium sublattice and 5 mol.% of Fe were also synthesised. The materials were subjected to structural (XRD, XANES) and microstructural (SEM) characterisation, as well as the analysis of susceptibility to reduction/oxidation processes. The structural analysis indicates a lack of iron-containing phases; thus, an incorporation of Fe into the perovskite structure was postulated. Additionally, the oxidation state of iron in the perovskite structure changes with the dopant amount. The temperature-programmed reduction measurements showed partial reversibility of the reduction processes. For the materials with the highest iron amount, the catalytic tests in NH3-SCO and NH3-SCR reactions were carried out. The materials showed high catalytic activity and high selectivity to N2 in the NH3-SCR process; however, they were inactive in NH3-SCO.

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Wide‐Range Tuning of the Mo Oxidation State in La1–xSrxFe2/3Mo1/3O3 Perovskites

Cited by 2 publications

References 39 publications

Electronic properties of single-crystalline Fe₄O₅

Electronic properties of single-crystalline Fe₄O₅

Aspects of Fe-Incorporation into CaTiO3-SrTiO3 Perovskites and Their Catalytic Application for Ammonia SCO/SCR

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Wide‐Range Tuning of the Mo Oxidation State in La1–xSrxFe2/3Mo1/3O3 Perovskites

Cited by 2 publications

References 39 publications

Electronic properties of single-crystalline Fe4O5

Electronic properties of single-crystalline Fe4O5

Aspects of Fe-Incorporation into CaTiO3-SrTiO3 Perovskites and Their Catalytic Application for Ammonia SCO/SCR

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Electronic properties of single-crystalline Fe₄O₅

Electronic properties of single-crystalline Fe₄O₅