Evolution of crystal structure and redox activity of LnBaMn2O6−δ upon various external conditions: in-situ characterization

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Evolution of crystal structure and redox activity of LnBaMn2O6−δ upon various external conditions: in-situ characterization. / Shalamova, A.; Samigullina, R.; Chukin, A. et al.
In: Journal of Materials Science, Vol. 58, No. 43, 01.11.2023, p. 16634-16650.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{e5931e86cf4240919dcefd820f3a22ce,

title = "Evolution of crystal structure and redox activity of LnBaMn2O6−δ upon various external conditions: in-situ characterization",

abstract = "Cation ordering/disordering features in perovskite-like oxides LnBaMn2O6−δ where Ln = Pr, Nd, Sm were studied by means of a combination of thermogravimetry and X-ray powder diffraction techniques in a wide range of temperatures. Variation in lanthanide size was shown to be an effective route for the shift in temperature of ordering and disordering. As a result, it was found coexistence of three different phases which can be obtained separately: disordered cubic Ln0.5Ba0.5MnO3–δ, and ordered kinds of LnBaMn2O6−δ having δ ≈ 0 or 1.0. The respective ambient conditions around stability boundaries for the whole studied phases were successfully determined. Additionally the main reasons for inducing ordering as well as disordering processes were clarified by the use of in-situ XRD and DSC methods. A combination of the experimentally obtained data with the results of limited studies reported in literature allows one to organize the available information about double manganites giving some explanation of ordering processes as well as appropriate conditions used to obtain oxides with desired ordering degree.",

author = "A. Shalamova and R. Samigullina and A. Chukin and A. Suntsov",

note = "This work is partly supported by the Russian Science Foundation under grant of № 22-19-00129. All persons who took any part in the preparation of this article and the performance of experiments are listed as co-authors.",

year = "2023",

month = nov,

day = "1",

doi = "10.1007/s10853-023-09060-8",

language = "English",

volume = "58",

pages = "16634--16650",

journal = "Journal of Materials Science",

issn = "0022-2461",

publisher = "Springer",

number = "43",

}

RIS

TY - JOUR

T1 - Evolution of crystal structure and redox activity of LnBaMn2O6−δ upon various external conditions: in-situ characterization

AU - Shalamova, A.

AU - Samigullina, R.

AU - Chukin, A.

AU - Suntsov, A.

N1 - This work is partly supported by the Russian Science Foundation under grant of № 22-19-00129. All persons who took any part in the preparation of this article and the performance of experiments are listed as co-authors.

PY - 2023/11/1

Y1 - 2023/11/1

N2 - Cation ordering/disordering features in perovskite-like oxides LnBaMn2O6−δ where Ln = Pr, Nd, Sm were studied by means of a combination of thermogravimetry and X-ray powder diffraction techniques in a wide range of temperatures. Variation in lanthanide size was shown to be an effective route for the shift in temperature of ordering and disordering. As a result, it was found coexistence of three different phases which can be obtained separately: disordered cubic Ln0.5Ba0.5MnO3–δ, and ordered kinds of LnBaMn2O6−δ having δ ≈ 0 or 1.0. The respective ambient conditions around stability boundaries for the whole studied phases were successfully determined. Additionally the main reasons for inducing ordering as well as disordering processes were clarified by the use of in-situ XRD and DSC methods. A combination of the experimentally obtained data with the results of limited studies reported in literature allows one to organize the available information about double manganites giving some explanation of ordering processes as well as appropriate conditions used to obtain oxides with desired ordering degree.

AB - Cation ordering/disordering features in perovskite-like oxides LnBaMn2O6−δ where Ln = Pr, Nd, Sm were studied by means of a combination of thermogravimetry and X-ray powder diffraction techniques in a wide range of temperatures. Variation in lanthanide size was shown to be an effective route for the shift in temperature of ordering and disordering. As a result, it was found coexistence of three different phases which can be obtained separately: disordered cubic Ln0.5Ba0.5MnO3–δ, and ordered kinds of LnBaMn2O6−δ having δ ≈ 0 or 1.0. The respective ambient conditions around stability boundaries for the whole studied phases were successfully determined. Additionally the main reasons for inducing ordering as well as disordering processes were clarified by the use of in-situ XRD and DSC methods. A combination of the experimentally obtained data with the results of limited studies reported in literature allows one to organize the available information about double manganites giving some explanation of ordering processes as well as appropriate conditions used to obtain oxides with desired ordering degree.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85176583593

U2 - 10.1007/s10853-023-09060-8

DO - 10.1007/s10853-023-09060-8

M3 - Article

VL - 58

SP - 16634

EP - 16650

JO - Journal of Materials Science

JF - Journal of Materials Science

SN - 0022-2461

IS - 43

ER -

ID: 48490498